./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/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_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/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_6fa57e5c-f91a-41b6-879b-9d6684417dea/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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- 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 12:01:38,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:01:38,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:01:38,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:01:38,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:01:38,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:01:38,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:01:38,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:01:38,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:01:38,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:01:38,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:01:38,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:01:38,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:01:38,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:01:38,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:01:38,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:01:38,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:01:38,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:01:38,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:01:38,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:01:38,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:01:38,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:01:38,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:01:38,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:01:38,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:01:38,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:01:38,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:01:38,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:01:38,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:01:38,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:01:38,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:01:38,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:01:38,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:01:38,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:01:38,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:01:38,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:01:38,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:01:38,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:01:38,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:01:38,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:01:38,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:01:38,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:01:38,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:01:38,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:01:38,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:01:38,608 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:01:38,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:01:38,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:01:38,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:01:38,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:01:38,610 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:01:38,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:01:38,611 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:01:38,611 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:01:38,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:01:38,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:01:38,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:01:38,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:01:38,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:01:38,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:01:38,613 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:01:38,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:01:38,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:01:38,614 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:01:38,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:01:38,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:01:38,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:01:38,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:01:38,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:38,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:01:38,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:01:38,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:01:38,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:01:38,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:01:38,617 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:01:38,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:01:38,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:01:38,618 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_6fa57e5c-f91a-41b6-879b-9d6684417dea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2022-11-16 12:01:38,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:01:38,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:01:38,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:01:38,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:01:38,900 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:01:38,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-11-16 12:01:38,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/data/af8b45176/921026e8dbce4a9facb1457149dc397c/FLAG1c8d327a3 [2022-11-16 12:01:39,552 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:01:39,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-11-16 12:01:39,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/data/af8b45176/921026e8dbce4a9facb1457149dc397c/FLAG1c8d327a3 [2022-11-16 12:01:39,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/data/af8b45176/921026e8dbce4a9facb1457149dc397c [2022-11-16 12:01:39,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:01:39,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:01:39,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:39,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:01:39,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:01:39,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:39" (1/1) ... [2022-11-16 12:01:39,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334b74e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:39, skipping insertion in model container [2022-11-16 12:01:39,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:01:39" (1/1) ... [2022-11-16 12:01:39,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:01:40,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:01:40,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:40,662 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:01:40,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:01:40,790 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:01:40,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40 WrapperNode [2022-11-16 12:01:40,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:01:40,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:40,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:01:40,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:01:40,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,859 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-11-16 12:01:40,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:01:40,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:01:40,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:01:40,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:01:40,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:01:40,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:01:40,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:01:40,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:01:40,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (1/1) ... [2022-11-16 12:01:40,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:01:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:40,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:01:40,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:01:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:01:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:01:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:01:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:01:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:01:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:01:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:01:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:01:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:01:40,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:01:40,988 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 12:01:41,136 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:01:41,138 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:01:41,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:01:41,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:01:41,466 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:01:41,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:41 BoogieIcfgContainer [2022-11-16 12:01:41,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:01:41,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:01:41,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:01:41,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:01:41,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:01:39" (1/3) ... [2022-11-16 12:01:41,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e92e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:41, skipping insertion in model container [2022-11-16 12:01:41,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:01:40" (2/3) ... [2022-11-16 12:01:41,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e92e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:01:41, skipping insertion in model container [2022-11-16 12:01:41,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:01:41" (3/3) ... [2022-11-16 12:01:41,482 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2022-11-16 12:01:41,489 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:01:41,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:01:41,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 12:01:41,501 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:01:41,595 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:01:41,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-11-16 12:01:41,688 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-11-16 12:01:41,689 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:41,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-11-16 12:01:41,695 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-11-16 12:01:41,700 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-11-16 12:01:41,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:01:41,718 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;@68c86822, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:01:41,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 12:01:41,740 INFO L130 PetriNetUnfolder]: 4/56 cut-off events. [2022-11-16 12:01:41,740 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:41,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:41,741 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] [2022-11-16 12:01:41,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:41,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1298122157, now seen corresponding path program 1 times [2022-11-16 12:01:41,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:41,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548591023] [2022-11-16 12:01:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:41,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:41,990 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 12:01:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548591023] [2022-11-16 12:01:41,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548591023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:41,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:41,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:01:41,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598861715] [2022-11-16 12:01:41,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:42,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:01:42,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:01:42,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:01:42,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 103 [2022-11-16 12:01:42,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 12:01:42,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:42,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 103 [2022-11-16 12:01:42,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:42,099 INFO L130 PetriNetUnfolder]: 1/99 cut-off events. [2022-11-16 12:01:42,099 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:01:42,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 99 events. 1/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 3/95 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-16 12:01:42,101 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 1 selfloop transitions, 0 changer transitions 1/99 dead transitions. [2022-11-16 12:01:42,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 99 transitions, 203 flow [2022-11-16 12:01:42,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:01:42,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:01:42,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 202 transitions. [2022-11-16 12:01:42,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9805825242718447 [2022-11-16 12:01:42,115 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 202 transitions. [2022-11-16 12:01:42,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 202 transitions. [2022-11-16 12:01:42,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:42,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 202 transitions. [2022-11-16 12:01:42,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 12:01:42,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 12:01:42,127 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states 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 12:01:42,129 INFO L175 Difference]: Start difference. First operand has 102 places, 102 transitions, 207 flow. Second operand 2 states and 202 transitions. [2022-11-16 12:01:42,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 99 transitions, 203 flow [2022-11-16 12:01:42,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:01:42,137 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 198 flow [2022-11-16 12:01:42,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=198, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2022-11-16 12:01:42,143 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-11-16 12:01:42,143 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 198 flow [2022-11-16 12:01:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.0) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states 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 12:01:42,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:42,144 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] [2022-11-16 12:01:42,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:01:42,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:42,146 INFO L85 PathProgramCache]: Analyzing trace with hash -779087186, now seen corresponding path program 1 times [2022-11-16 12:01:42,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:42,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951757727] [2022-11-16 12:01:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:42,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:42,337 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 12:01:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:42,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951757727] [2022-11-16 12:01:42,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951757727] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:42,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:42,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:01:42,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915123090] [2022-11-16 12:01:42,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:42,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:01:42,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:42,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:01:42,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:01:42,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 103 [2022-11-16 12:01:42,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 12:01:42,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:42,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 103 [2022-11-16 12:01:42,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:42,432 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-16 12:01:42,432 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:01:42,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 102 events. 1/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 116. Up to 9 conditions per place. [2022-11-16 12:01:42,440 INFO L137 encePairwiseOnDemand]: 100/103 looper letters, 10 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2022-11-16 12:01:42,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 230 flow [2022-11-16 12:01:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:01:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:01:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2022-11-16 12:01:42,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9352750809061489 [2022-11-16 12:01:42,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2022-11-16 12:01:42,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2022-11-16 12:01:42,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:42,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2022-11-16 12:01:42,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 12:01:42,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 12:01:42,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 12:01:42,464 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 198 flow. Second operand 3 states and 289 transitions. [2022-11-16 12:01:42,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 230 flow [2022-11-16 12:01:42,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:42,469 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 210 flow [2022-11-16 12:01:42,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2022-11-16 12:01:42,471 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-11-16 12:01:42,471 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 210 flow [2022-11-16 12:01:42,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states 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 12:01:42,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:42,472 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:42,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:01:42,472 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:42,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 624473633, now seen corresponding path program 1 times [2022-11-16 12:01:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:42,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920469384] [2022-11-16 12:01:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:42,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:42,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920469384] [2022-11-16 12:01:42,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920469384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:01:42,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179781651] [2022-11-16 12:01:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:42,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:42,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:42,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:01:42,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:01:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:42,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:01:42,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:43,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:43,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:43,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179781651] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:43,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:01:43,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:01:43,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742718771] [2022-11-16 12:01:43,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:43,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:01:43,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:43,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:01:43,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:01:43,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 12:01:43,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 12:01:43,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:43,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 12:01:43,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:43,313 INFO L130 PetriNetUnfolder]: 1/109 cut-off events. [2022-11-16 12:01:43,313 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:01:43,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 109 events. 1/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 2/106 useless extension candidates. Maximal degree in co-relation 137. Up to 6 conditions per place. [2022-11-16 12:01:43,317 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 11 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2022-11-16 12:01:43,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 109 transitions, 272 flow [2022-11-16 12:01:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:01:43,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:01:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 841 transitions. [2022-11-16 12:01:43,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9072276159654801 [2022-11-16 12:01:43,320 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 841 transitions. [2022-11-16 12:01:43,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 841 transitions. [2022-11-16 12:01:43,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:43,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 841 transitions. [2022-11-16 12:01:43,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.44444444444444) internal successors, (841), 9 states have internal predecessors, (841), 0 states have call successors, (0), 0 states 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 12:01:43,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 12:01:43,330 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 103.0) internal successors, (1030), 10 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states 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 12:01:43,331 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 210 flow. Second operand 9 states and 841 transitions. [2022-11-16 12:01:43,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 109 transitions, 272 flow [2022-11-16 12:01:43,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 109 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:01:43,339 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 258 flow [2022-11-16 12:01:43,339 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=258, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2022-11-16 12:01:43,342 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 12 predicate places. [2022-11-16 12:01:43,342 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 258 flow [2022-11-16 12:01:43,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 93.1) internal successors, (931), 10 states have internal predecessors, (931), 0 states have call successors, (0), 0 states 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 12:01:43,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:43,344 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:43,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:43,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:43,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:43,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:43,551 INFO L85 PathProgramCache]: Analyzing trace with hash 653292097, now seen corresponding path program 2 times [2022-11-16 12:01:43,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:43,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45656073] [2022-11-16 12:01:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:43,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45656073] [2022-11-16 12:01:43,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45656073] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:01:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337424293] [2022-11-16 12:01:43,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:43,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:43,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:43,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:01:43,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:01:44,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:01:44,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:44,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:01:44,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:44,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 12:01:44,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 12:01:44,222 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:01:44,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 12:01:44,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:01:44,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 12:01:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-16 12:01:44,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:44,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337424293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:44,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:01:44,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-16 12:01:44,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532894083] [2022-11-16 12:01:44,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:44,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:44,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:44,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:01:44,339 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 103 [2022-11-16 12:01:44,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 105 transitions, 258 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 12:01:44,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:44,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 103 [2022-11-16 12:01:44,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:44,997 INFO L130 PetriNetUnfolder]: 308/1005 cut-off events. [2022-11-16 12:01:44,997 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:01:45,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1005 events. 308/1005 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6221 event pairs, 128 based on Foata normal form. 0/909 useless extension candidates. Maximal degree in co-relation 1707. Up to 393 conditions per place. [2022-11-16 12:01:45,012 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 97 selfloop transitions, 22 changer transitions 0/186 dead transitions. [2022-11-16 12:01:45,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 186 transitions, 658 flow [2022-11-16 12:01:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:45,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 492 transitions. [2022-11-16 12:01:45,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7961165048543689 [2022-11-16 12:01:45,015 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 492 transitions. [2022-11-16 12:01:45,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 492 transitions. [2022-11-16 12:01:45,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:45,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 492 transitions. [2022-11-16 12:01:45,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.0) internal successors, (492), 6 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 12:01:45,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:45,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:45,019 INFO L175 Difference]: Start difference. First operand has 114 places, 105 transitions, 258 flow. Second operand 6 states and 492 transitions. [2022-11-16 12:01:45,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 186 transitions, 658 flow [2022-11-16 12:01:45,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 186 transitions, 652 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-16 12:01:45,029 INFO L231 Difference]: Finished difference. Result has 122 places, 127 transitions, 398 flow [2022-11-16 12:01:45,030 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=122, PETRI_TRANSITIONS=127} [2022-11-16 12:01:45,031 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2022-11-16 12:01:45,032 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 127 transitions, 398 flow [2022-11-16 12:01:45,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 12:01:45,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:45,034 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:45,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:45,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:45,240 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:45,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash -406389930, now seen corresponding path program 1 times [2022-11-16 12:01:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:45,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946370632] [2022-11-16 12:01:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:45,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:45,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946370632] [2022-11-16 12:01:45,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946370632] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:01:45,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312121759] [2022-11-16 12:01:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:45,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:45,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:45,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:01:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:01:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:45,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:01:45,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:45,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:45,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:45,747 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:45,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312121759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:45,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:01:45,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-16 12:01:45,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297038843] [2022-11-16 12:01:45,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:45,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:01:45,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:45,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:01:45,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:01:45,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 12:01:45,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 127 transitions, 398 flow. Second operand has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 12:01:45,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:45,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 12:01:45,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:46,071 INFO L130 PetriNetUnfolder]: 34/376 cut-off events. [2022-11-16 12:01:46,071 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-16 12:01:46,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 376 events. 34/376 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1762 event pairs, 9 based on Foata normal form. 4/356 useless extension candidates. Maximal degree in co-relation 628. Up to 53 conditions per place. [2022-11-16 12:01:46,074 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 19 selfloop transitions, 21 changer transitions 0/151 dead transitions. [2022-11-16 12:01:46,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 151 transitions, 578 flow [2022-11-16 12:01:46,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:01:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:01:46,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1955 transitions. [2022-11-16 12:01:46,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.903837263060564 [2022-11-16 12:01:46,080 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1955 transitions. [2022-11-16 12:01:46,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1955 transitions. [2022-11-16 12:01:46,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:46,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1955 transitions. [2022-11-16 12:01:46,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 93.0952380952381) internal successors, (1955), 21 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states 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 12:01:46,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 12:01:46,094 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 103.0) internal successors, (2266), 22 states have internal predecessors, (2266), 0 states have call successors, (0), 0 states 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 12:01:46,094 INFO L175 Difference]: Start difference. First operand has 122 places, 127 transitions, 398 flow. Second operand 21 states and 1955 transitions. [2022-11-16 12:01:46,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 151 transitions, 578 flow [2022-11-16 12:01:46,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 151 transitions, 578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:46,105 INFO L231 Difference]: Finished difference. Result has 147 places, 140 transitions, 528 flow [2022-11-16 12:01:46,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=528, PETRI_PLACES=147, PETRI_TRANSITIONS=140} [2022-11-16 12:01:46,108 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2022-11-16 12:01:46,108 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 140 transitions, 528 flow [2022-11-16 12:01:46,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 93.27777777777777) internal successors, (1679), 18 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states 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 12:01:46,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:46,109 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:46,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:46,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:46,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:46,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:46,316 INFO L85 PathProgramCache]: Analyzing trace with hash 232143766, now seen corresponding path program 2 times [2022-11-16 12:01:46,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:46,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748279388] [2022-11-16 12:01:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:46,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:46,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:46,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748279388] [2022-11-16 12:01:46,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748279388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:01:46,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18729992] [2022-11-16 12:01:46,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:01:46,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:46,845 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:01:46,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:01:46,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:01:46,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:01:46,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:01:46,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:46,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 12:01:47,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-16 12:01:47,078 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:01:47,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-16 12:01:47,141 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 12:01:47,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-16 12:01:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-16 12:01:47,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:01:47,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18729992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:47,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:01:47,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-16 12:01:47,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018570887] [2022-11-16 12:01:47,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:47,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:47,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:47,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:01:47,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 103 [2022-11-16 12:01:47,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 140 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 12:01:47,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:47,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 103 [2022-11-16 12:01:47,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:47,881 INFO L130 PetriNetUnfolder]: 509/1633 cut-off events. [2022-11-16 12:01:47,881 INFO L131 PetriNetUnfolder]: For 383/385 co-relation queries the response was YES. [2022-11-16 12:01:47,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 1633 events. 509/1633 cut-off events. For 383/385 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 11324 event pairs, 224 based on Foata normal form. 2/1489 useless extension candidates. Maximal degree in co-relation 3314. Up to 756 conditions per place. [2022-11-16 12:01:47,894 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 102 selfloop transitions, 36 changer transitions 2/217 dead transitions. [2022-11-16 12:01:47,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 217 transitions, 1000 flow [2022-11-16 12:01:47,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2022-11-16 12:01:47,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7734627831715211 [2022-11-16 12:01:47,897 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2022-11-16 12:01:47,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2022-11-16 12:01:47,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:47,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2022-11-16 12:01:47,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states 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 12:01:47,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:47,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:47,901 INFO L175 Difference]: Start difference. First operand has 147 places, 140 transitions, 528 flow. Second operand 6 states and 478 transitions. [2022-11-16 12:01:47,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 217 transitions, 1000 flow [2022-11-16 12:01:47,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 217 transitions, 976 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-16 12:01:47,941 INFO L231 Difference]: Finished difference. Result has 150 places, 172 transitions, 756 flow [2022-11-16 12:01:47,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=150, PETRI_TRANSITIONS=172} [2022-11-16 12:01:47,942 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 48 predicate places. [2022-11-16 12:01:47,943 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 172 transitions, 756 flow [2022-11-16 12:01:47,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.5) internal successors, (381), 6 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 12:01:47,944 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:47,944 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:47,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-16 12:01:48,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-16 12:01:48,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash -109360466, now seen corresponding path program 1 times [2022-11-16 12:01:48,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:48,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082996286] [2022-11-16 12:01:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:48,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:48,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:48,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082996286] [2022-11-16 12:01:48,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082996286] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:01:48,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604783752] [2022-11-16 12:01:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:48,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:01:48,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:01:48,596 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:01:48,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:01:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-16 12:01:48,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:01:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:48,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:01:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:01:49,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604783752] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:01:49,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:01:49,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-16 12:01:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140996742] [2022-11-16 12:01:49,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:01:49,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:01:49,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:01:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:01:49,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 103 [2022-11-16 12:01:49,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 172 transitions, 756 flow. Second operand has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:49,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:49,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 103 [2022-11-16 12:01:49,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:49,756 INFO L130 PetriNetUnfolder]: 110/799 cut-off events. [2022-11-16 12:01:49,757 INFO L131 PetriNetUnfolder]: For 397/407 co-relation queries the response was YES. [2022-11-16 12:01:49,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 799 events. 110/799 cut-off events. For 397/407 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5446 event pairs, 26 based on Foata normal form. 11/755 useless extension candidates. Maximal degree in co-relation 1589. Up to 129 conditions per place. [2022-11-16 12:01:49,765 INFO L137 encePairwiseOnDemand]: 97/103 looper letters, 25 selfloop transitions, 30 changer transitions 0/198 dead transitions. [2022-11-16 12:01:49,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 198 transitions, 1006 flow [2022-11-16 12:01:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:01:49,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:01:49,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2788 transitions. [2022-11-16 12:01:49,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9022653721682848 [2022-11-16 12:01:49,774 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2788 transitions. [2022-11-16 12:01:49,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2788 transitions. [2022-11-16 12:01:49,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:49,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2788 transitions. [2022-11-16 12:01:49,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 92.93333333333334) internal successors, (2788), 30 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states 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 12:01:49,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 12:01:49,791 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 103.0) internal successors, (3193), 31 states have internal predecessors, (3193), 0 states have call successors, (0), 0 states 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 12:01:49,792 INFO L175 Difference]: Start difference. First operand has 150 places, 172 transitions, 756 flow. Second operand 30 states and 2788 transitions. [2022-11-16 12:01:49,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 198 transitions, 1006 flow [2022-11-16 12:01:49,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 198 transitions, 982 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:49,802 INFO L231 Difference]: Finished difference. Result has 182 places, 182 transitions, 884 flow [2022-11-16 12:01:49,803 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=884, PETRI_PLACES=182, PETRI_TRANSITIONS=182} [2022-11-16 12:01:49,804 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 80 predicate places. [2022-11-16 12:01:49,804 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 182 transitions, 884 flow [2022-11-16 12:01:49,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 93.43478260869566) internal successors, (2149), 23 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:01:49,805 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:49,806 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:49,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:01:50,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fa57e5c-f91a-41b6-879b-9d6684417dea/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 12:01:50,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash 827906497, now seen corresponding path program 2 times [2022-11-16 12:01:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:50,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025433481] [2022-11-16 12:01:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:01:50,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:50,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025433481] [2022-11-16 12:01:50,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025433481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:50,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:50,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:50,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834746325] [2022-11-16 12:01:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:50,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:50,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:50,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:50,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 103 [2022-11-16 12:01:50,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 12:01:50,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:50,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 103 [2022-11-16 12:01:50,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:51,478 INFO L130 PetriNetUnfolder]: 577/1990 cut-off events. [2022-11-16 12:01:51,479 INFO L131 PetriNetUnfolder]: For 1168/1168 co-relation queries the response was YES. [2022-11-16 12:01:51,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4857 conditions, 1990 events. 577/1990 cut-off events. For 1168/1168 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 14955 event pairs, 176 based on Foata normal form. 0/1886 useless extension candidates. Maximal degree in co-relation 4831. Up to 831 conditions per place. [2022-11-16 12:01:51,500 INFO L137 encePairwiseOnDemand]: 92/103 looper letters, 155 selfloop transitions, 49 changer transitions 0/298 dead transitions. [2022-11-16 12:01:51,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 298 transitions, 1811 flow [2022-11-16 12:01:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-16 12:01:51,503 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8042071197411004 [2022-11-16 12:01:51,503 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-16 12:01:51,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-16 12:01:51,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:51,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-16 12:01:51,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 12:01:51,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:51,508 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:51,508 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 884 flow. Second operand 6 states and 497 transitions. [2022-11-16 12:01:51,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 298 transitions, 1811 flow [2022-11-16 12:01:51,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 298 transitions, 1765 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-16 12:01:51,524 INFO L231 Difference]: Finished difference. Result has 173 places, 223 transitions, 1254 flow [2022-11-16 12:01:51,525 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1254, PETRI_PLACES=173, PETRI_TRANSITIONS=223} [2022-11-16 12:01:51,526 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 71 predicate places. [2022-11-16 12:01:51,526 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 223 transitions, 1254 flow [2022-11-16 12:01:51,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.16666666666667) internal successors, (391), 6 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 12:01:51,526 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:51,527 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:51,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:01:51,527 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:51,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:51,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249786, now seen corresponding path program 1 times [2022-11-16 12:01:51,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:51,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818695285] [2022-11-16 12:01:51,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:51,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:01:52,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:52,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818695285] [2022-11-16 12:01:52,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818695285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:52,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:52,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:01:52,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941699065] [2022-11-16 12:01:52,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:52,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:52,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:52,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:52,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:52,110 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 103 [2022-11-16 12:01:52,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 223 transitions, 1254 flow. Second operand has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 12:01:52,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:52,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 103 [2022-11-16 12:01:52,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:53,264 INFO L130 PetriNetUnfolder]: 872/2760 cut-off events. [2022-11-16 12:01:53,264 INFO L131 PetriNetUnfolder]: For 2483/2483 co-relation queries the response was YES. [2022-11-16 12:01:53,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7509 conditions, 2760 events. 872/2760 cut-off events. For 2483/2483 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 22015 event pairs, 305 based on Foata normal form. 0/2666 useless extension candidates. Maximal degree in co-relation 7478. Up to 1296 conditions per place. [2022-11-16 12:01:53,296 INFO L137 encePairwiseOnDemand]: 88/103 looper letters, 153 selfloop transitions, 72 changer transitions 45/361 dead transitions. [2022-11-16 12:01:53,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 361 transitions, 2510 flow [2022-11-16 12:01:53,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:01:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:01:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 487 transitions. [2022-11-16 12:01:53,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7880258899676376 [2022-11-16 12:01:53,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 487 transitions. [2022-11-16 12:01:53,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 487 transitions. [2022-11-16 12:01:53,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:53,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 487 transitions. [2022-11-16 12:01:53,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.16666666666667) internal successors, (487), 6 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 12:01:53,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:53,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states 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 12:01:53,304 INFO L175 Difference]: Start difference. First operand has 173 places, 223 transitions, 1254 flow. Second operand 6 states and 487 transitions. [2022-11-16 12:01:53,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 361 transitions, 2510 flow [2022-11-16 12:01:53,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 361 transitions, 2508 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:53,332 INFO L231 Difference]: Finished difference. Result has 182 places, 265 transitions, 1792 flow [2022-11-16 12:01:53,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1792, PETRI_PLACES=182, PETRI_TRANSITIONS=265} [2022-11-16 12:01:53,333 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 80 predicate places. [2022-11-16 12:01:53,334 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 265 transitions, 1792 flow [2022-11-16 12:01:53,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.33333333333333) internal successors, (386), 6 states have internal predecessors, (386), 0 states have call successors, (0), 0 states 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 12:01:53,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:53,335 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:53,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:01:53,335 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:53,336 INFO L85 PathProgramCache]: Analyzing trace with hash 255639728, now seen corresponding path program 1 times [2022-11-16 12:01:53,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:53,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739057392] [2022-11-16 12:01:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:53,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:54,607 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:01:54,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:54,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739057392] [2022-11-16 12:01:54,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739057392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:54,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:54,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 12:01:54,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51445737] [2022-11-16 12:01:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:54,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:01:54,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:01:54,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:01:54,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:01:54,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 265 transitions, 1792 flow. Second operand has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 12:01:54,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:54,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:01:54,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:01:57,675 INFO L130 PetriNetUnfolder]: 1800/5584 cut-off events. [2022-11-16 12:01:57,675 INFO L131 PetriNetUnfolder]: For 9390/9441 co-relation queries the response was YES. [2022-11-16 12:01:57,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17942 conditions, 5584 events. 1800/5584 cut-off events. For 9390/9441 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 52665 event pairs, 315 based on Foata normal form. 103/5679 useless extension candidates. Maximal degree in co-relation 17906. Up to 1565 conditions per place. [2022-11-16 12:01:57,743 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 432 selfloop transitions, 70 changer transitions 169/757 dead transitions. [2022-11-16 12:01:57,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 757 transitions, 6775 flow [2022-11-16 12:01:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:01:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 12:01:57,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1204 transitions. [2022-11-16 12:01:57,750 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6876070816676185 [2022-11-16 12:01:57,750 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1204 transitions. [2022-11-16 12:01:57,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1204 transitions. [2022-11-16 12:01:57,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:01:57,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1204 transitions. [2022-11-16 12:01:57,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 70.82352941176471) internal successors, (1204), 17 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states 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 12:01:57,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states 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 12:01:57,761 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 103.0) internal successors, (1854), 18 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states 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 12:01:57,762 INFO L175 Difference]: Start difference. First operand has 182 places, 265 transitions, 1792 flow. Second operand 17 states and 1204 transitions. [2022-11-16 12:01:57,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 757 transitions, 6775 flow [2022-11-16 12:01:57,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 757 transitions, 6701 flow, removed 37 selfloop flow, removed 0 redundant places. [2022-11-16 12:01:57,859 INFO L231 Difference]: Finished difference. Result has 213 places, 331 transitions, 2783 flow [2022-11-16 12:01:57,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=1764, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2783, PETRI_PLACES=213, PETRI_TRANSITIONS=331} [2022-11-16 12:01:57,861 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 111 predicate places. [2022-11-16 12:01:57,861 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 331 transitions, 2783 flow [2022-11-16 12:01:57,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 58.45454545454545) internal successors, (643), 11 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 12:01:57,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:01:57,862 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:01:57,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:01:57,863 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:01:57,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:57,863 INFO L85 PathProgramCache]: Analyzing trace with hash -571334816, now seen corresponding path program 2 times [2022-11-16 12:01:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:57,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108219816] [2022-11-16 12:01:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:57,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:01:58,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108219816] [2022-11-16 12:01:58,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108219816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:58,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:58,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:01:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470283394] [2022-11-16 12:01:58,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:58,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:01:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:58,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:01:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:01:58,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:01:58,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 331 transitions, 2783 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:01:58,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:01:58,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:01:58,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:02,457 INFO L130 PetriNetUnfolder]: 2723/8497 cut-off events. [2022-11-16 12:02:02,458 INFO L131 PetriNetUnfolder]: For 25513/25598 co-relation queries the response was YES. [2022-11-16 12:02:02,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31683 conditions, 8497 events. 2723/8497 cut-off events. For 25513/25598 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 86966 event pairs, 516 based on Foata normal form. 112/8593 useless extension candidates. Maximal degree in co-relation 31632. Up to 2447 conditions per place. [2022-11-16 12:02:02,587 INFO L137 encePairwiseOnDemand]: 82/103 looper letters, 452 selfloop transitions, 128 changer transitions 107/773 dead transitions. [2022-11-16 12:02:02,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 773 transitions, 7965 flow [2022-11-16 12:02:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:02:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:02:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 952 transitions. [2022-11-16 12:02:02,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7109783420463032 [2022-11-16 12:02:02,591 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 952 transitions. [2022-11-16 12:02:02,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 952 transitions. [2022-11-16 12:02:02,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:02,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 952 transitions. [2022-11-16 12:02:02,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.23076923076923) internal successors, (952), 13 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 12:02:02,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 12:02:02,599 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 103.0) internal successors, (1442), 14 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 12:02:02,599 INFO L175 Difference]: Start difference. First operand has 213 places, 331 transitions, 2783 flow. Second operand 13 states and 952 transitions. [2022-11-16 12:02:02,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 773 transitions, 7965 flow [2022-11-16 12:02:02,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 773 transitions, 7875 flow, removed 39 selfloop flow, removed 6 redundant places. [2022-11-16 12:02:02,869 INFO L231 Difference]: Finished difference. Result has 223 places, 414 transitions, 4395 flow [2022-11-16 12:02:02,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=2758, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4395, PETRI_PLACES=223, PETRI_TRANSITIONS=414} [2022-11-16 12:02:02,871 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 121 predicate places. [2022-11-16 12:02:02,871 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 414 transitions, 4395 flow [2022-11-16 12:02:02,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:02,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:02,872 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:02,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:02:02,873 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1298137290, now seen corresponding path program 3 times [2022-11-16 12:02:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:02,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083255347] [2022-11-16 12:02:02,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:04,144 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:04,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:04,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083255347] [2022-11-16 12:02:04,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083255347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:04,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:04,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:04,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324296071] [2022-11-16 12:02:04,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:04,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:04,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:04,147 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:04,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 414 transitions, 4395 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:04,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:04,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:04,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:07,669 INFO L130 PetriNetUnfolder]: 2687/8242 cut-off events. [2022-11-16 12:02:07,669 INFO L131 PetriNetUnfolder]: For 35778/35860 co-relation queries the response was YES. [2022-11-16 12:02:07,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34007 conditions, 8242 events. 2687/8242 cut-off events. For 35778/35860 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 83867 event pairs, 531 based on Foata normal form. 92/8318 useless extension candidates. Maximal degree in co-relation 33952. Up to 2213 conditions per place. [2022-11-16 12:02:07,751 INFO L137 encePairwiseOnDemand]: 83/103 looper letters, 396 selfloop transitions, 178 changer transitions 69/729 dead transitions. [2022-11-16 12:02:07,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 729 transitions, 8239 flow [2022-11-16 12:02:07,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:02:07,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:02:07,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 816 transitions. [2022-11-16 12:02:07,754 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7202118270079435 [2022-11-16 12:02:07,754 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 816 transitions. [2022-11-16 12:02:07,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 816 transitions. [2022-11-16 12:02:07,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:07,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 816 transitions. [2022-11-16 12:02:07,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.18181818181819) internal successors, (816), 11 states have internal predecessors, (816), 0 states have call successors, (0), 0 states 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 12:02:07,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:07,761 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:07,761 INFO L175 Difference]: Start difference. First operand has 223 places, 414 transitions, 4395 flow. Second operand 11 states and 816 transitions. [2022-11-16 12:02:07,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 729 transitions, 8239 flow [2022-11-16 12:02:08,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 729 transitions, 8221 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-16 12:02:08,047 INFO L231 Difference]: Finished difference. Result has 238 places, 453 transitions, 5515 flow [2022-11-16 12:02:08,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=4377, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5515, PETRI_PLACES=238, PETRI_TRANSITIONS=453} [2022-11-16 12:02:08,049 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 136 predicate places. [2022-11-16 12:02:08,049 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 453 transitions, 5515 flow [2022-11-16 12:02:08,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:08,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:08,050 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:08,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:02:08,050 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:08,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash 365125482, now seen corresponding path program 4 times [2022-11-16 12:02:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:08,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388012088] [2022-11-16 12:02:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:08,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:09,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:09,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388012088] [2022-11-16 12:02:09,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388012088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:09,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:09,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:09,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223058000] [2022-11-16 12:02:09,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:09,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:09,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:09,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:09,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:09,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:09,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 453 transitions, 5515 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:09,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:09,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:09,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:12,882 INFO L130 PetriNetUnfolder]: 2893/8736 cut-off events. [2022-11-16 12:02:12,882 INFO L131 PetriNetUnfolder]: For 56792/56885 co-relation queries the response was YES. [2022-11-16 12:02:12,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40273 conditions, 8736 events. 2893/8736 cut-off events. For 56792/56885 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 89308 event pairs, 618 based on Foata normal form. 118/8837 useless extension candidates. Maximal degree in co-relation 40210. Up to 2198 conditions per place. [2022-11-16 12:02:13,017 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 635 selfloop transitions, 112 changer transitions 73/906 dead transitions. [2022-11-16 12:02:13,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 906 transitions, 11199 flow [2022-11-16 12:02:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:13,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:02:13,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 913 transitions. [2022-11-16 12:02:13,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.738673139158576 [2022-11-16 12:02:13,020 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 913 transitions. [2022-11-16 12:02:13,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 913 transitions. [2022-11-16 12:02:13,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:13,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 913 transitions. [2022-11-16 12:02:13,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.08333333333333) internal successors, (913), 12 states have internal predecessors, (913), 0 states have call successors, (0), 0 states 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 12:02:13,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:13,027 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:13,027 INFO L175 Difference]: Start difference. First operand has 238 places, 453 transitions, 5515 flow. Second operand 12 states and 913 transitions. [2022-11-16 12:02:13,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 906 transitions, 11199 flow [2022-11-16 12:02:13,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 906 transitions, 11076 flow, removed 51 selfloop flow, removed 4 redundant places. [2022-11-16 12:02:13,737 INFO L231 Difference]: Finished difference. Result has 250 places, 485 transitions, 6367 flow [2022-11-16 12:02:13,738 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=5444, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6367, PETRI_PLACES=250, PETRI_TRANSITIONS=485} [2022-11-16 12:02:13,740 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 148 predicate places. [2022-11-16 12:02:13,740 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 485 transitions, 6367 flow [2022-11-16 12:02:13,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:13,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:13,741 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:13,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:02:13,741 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:13,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:13,742 INFO L85 PathProgramCache]: Analyzing trace with hash 317764832, now seen corresponding path program 5 times [2022-11-16 12:02:13,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:13,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676482407] [2022-11-16 12:02:13,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:14,732 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:14,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:14,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676482407] [2022-11-16 12:02:14,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676482407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:14,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:14,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:14,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304213818] [2022-11-16 12:02:14,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:14,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:14,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:14,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:14,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:14,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:14,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 485 transitions, 6367 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:14,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:14,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:14,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:18,551 INFO L130 PetriNetUnfolder]: 2948/8983 cut-off events. [2022-11-16 12:02:18,551 INFO L131 PetriNetUnfolder]: For 69655/69749 co-relation queries the response was YES. [2022-11-16 12:02:18,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43137 conditions, 8983 events. 2948/8983 cut-off events. For 69655/69749 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 92874 event pairs, 598 based on Foata normal form. 112/9079 useless extension candidates. Maximal degree in co-relation 43068. Up to 2208 conditions per place. [2022-11-16 12:02:18,683 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 405 selfloop transitions, 199 changer transitions 55/745 dead transitions. [2022-11-16 12:02:18,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 745 transitions, 9756 flow [2022-11-16 12:02:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:02:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:02:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 815 transitions. [2022-11-16 12:02:18,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7193292144748455 [2022-11-16 12:02:18,687 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 815 transitions. [2022-11-16 12:02:18,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 815 transitions. [2022-11-16 12:02:18,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:18,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 815 transitions. [2022-11-16 12:02:18,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.0909090909091) internal successors, (815), 11 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 12:02:18,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:18,694 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:18,695 INFO L175 Difference]: Start difference. First operand has 250 places, 485 transitions, 6367 flow. Second operand 11 states and 815 transitions. [2022-11-16 12:02:18,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 745 transitions, 9756 flow [2022-11-16 12:02:19,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 745 transitions, 9597 flow, removed 47 selfloop flow, removed 3 redundant places. [2022-11-16 12:02:19,555 INFO L231 Difference]: Finished difference. Result has 261 places, 492 transitions, 6830 flow [2022-11-16 12:02:19,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=6211, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6830, PETRI_PLACES=261, PETRI_TRANSITIONS=492} [2022-11-16 12:02:19,556 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 159 predicate places. [2022-11-16 12:02:19,556 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 492 transitions, 6830 flow [2022-11-16 12:02:19,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:19,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:19,557 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:19,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:02:19,557 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:19,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:19,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1868223966, now seen corresponding path program 1 times [2022-11-16 12:02:19,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:19,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952079233] [2022-11-16 12:02:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:19,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:20,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:20,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952079233] [2022-11-16 12:02:20,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952079233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:20,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:20,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:20,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197880285] [2022-11-16 12:02:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:20,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:20,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:20,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:20,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:20,434 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 103 [2022-11-16 12:02:20,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 492 transitions, 6830 flow. Second operand has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 12:02:20,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:20,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 103 [2022-11-16 12:02:20,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:23,970 INFO L130 PetriNetUnfolder]: 2533/8231 cut-off events. [2022-11-16 12:02:23,971 INFO L131 PetriNetUnfolder]: For 71811/71827 co-relation queries the response was YES. [2022-11-16 12:02:24,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40600 conditions, 8231 events. 2533/8231 cut-off events. For 71811/71827 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 86039 event pairs, 451 based on Foata normal form. 65/8269 useless extension candidates. Maximal degree in co-relation 40527. Up to 1789 conditions per place. [2022-11-16 12:02:24,113 INFO L137 encePairwiseOnDemand]: 86/103 looper letters, 604 selfloop transitions, 94 changer transitions 70/871 dead transitions. [2022-11-16 12:02:24,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 871 transitions, 12768 flow [2022-11-16 12:02:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:02:24,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:02:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 845 transitions. [2022-11-16 12:02:24,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7458075904677847 [2022-11-16 12:02:24,117 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 845 transitions. [2022-11-16 12:02:24,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 845 transitions. [2022-11-16 12:02:24,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:24,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 845 transitions. [2022-11-16 12:02:24,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.81818181818181) internal successors, (845), 11 states have internal predecessors, (845), 0 states have call successors, (0), 0 states 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 12:02:24,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:24,126 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:24,126 INFO L175 Difference]: Start difference. First operand has 261 places, 492 transitions, 6830 flow. Second operand 11 states and 845 transitions. [2022-11-16 12:02:24,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 871 transitions, 12768 flow [2022-11-16 12:02:24,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 871 transitions, 12365 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-11-16 12:02:24,896 INFO L231 Difference]: Finished difference. Result has 273 places, 548 transitions, 7467 flow [2022-11-16 12:02:24,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=6533, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=7467, PETRI_PLACES=273, PETRI_TRANSITIONS=548} [2022-11-16 12:02:24,897 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 171 predicate places. [2022-11-16 12:02:24,898 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 548 transitions, 7467 flow [2022-11-16 12:02:24,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states 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 12:02:24,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:24,899 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:24,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:02:24,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2118977280, now seen corresponding path program 6 times [2022-11-16 12:02:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:24,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075907442] [2022-11-16 12:02:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:26,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:26,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075907442] [2022-11-16 12:02:26,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075907442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:26,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:26,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:26,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382503921] [2022-11-16 12:02:26,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:26,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:26,211 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:26,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 548 transitions, 7467 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:26,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:26,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:26,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:30,484 INFO L130 PetriNetUnfolder]: 2897/9010 cut-off events. [2022-11-16 12:02:30,485 INFO L131 PetriNetUnfolder]: For 80862/80944 co-relation queries the response was YES. [2022-11-16 12:02:30,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45170 conditions, 9010 events. 2897/9010 cut-off events. For 80862/80944 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 93852 event pairs, 688 based on Foata normal form. 92/9086 useless extension candidates. Maximal degree in co-relation 45089. Up to 2195 conditions per place. [2022-11-16 12:02:30,600 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 504 selfloop transitions, 189 changer transitions 89/868 dead transitions. [2022-11-16 12:02:30,600 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 868 transitions, 12139 flow [2022-11-16 12:02:30,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:30,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:02:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 891 transitions. [2022-11-16 12:02:30,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.720873786407767 [2022-11-16 12:02:30,603 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 891 transitions. [2022-11-16 12:02:30,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 891 transitions. [2022-11-16 12:02:30,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:30,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 891 transitions. [2022-11-16 12:02:30,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.25) internal successors, (891), 12 states have internal predecessors, (891), 0 states have call successors, (0), 0 states 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 12:02:30,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:30,610 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:30,610 INFO L175 Difference]: Start difference. First operand has 273 places, 548 transitions, 7467 flow. Second operand 12 states and 891 transitions. [2022-11-16 12:02:30,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 868 transitions, 12139 flow [2022-11-16 12:02:31,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 868 transitions, 12069 flow, removed 35 selfloop flow, removed 0 redundant places. [2022-11-16 12:02:31,445 INFO L231 Difference]: Finished difference. Result has 289 places, 565 transitions, 8267 flow [2022-11-16 12:02:31,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7399, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8267, PETRI_PLACES=289, PETRI_TRANSITIONS=565} [2022-11-16 12:02:31,446 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 187 predicate places. [2022-11-16 12:02:31,447 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 565 transitions, 8267 flow [2022-11-16 12:02:31,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:31,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:31,447 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:31,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:02:31,448 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:31,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash 936574402, now seen corresponding path program 7 times [2022-11-16 12:02:31,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:31,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109766314] [2022-11-16 12:02:31,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:31,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:32,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:32,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109766314] [2022-11-16 12:02:32,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109766314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:32,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:32,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:32,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220976944] [2022-11-16 12:02:32,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:32,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:32,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:32,651 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:32,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 565 transitions, 8267 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:32,653 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:32,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:32,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:37,286 INFO L130 PetriNetUnfolder]: 2884/8919 cut-off events. [2022-11-16 12:02:37,287 INFO L131 PetriNetUnfolder]: For 91799/91881 co-relation queries the response was YES. [2022-11-16 12:02:37,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46984 conditions, 8919 events. 2884/8919 cut-off events. For 91799/91881 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 92558 event pairs, 607 based on Foata normal form. 91/8990 useless extension candidates. Maximal degree in co-relation 46897. Up to 2197 conditions per place. [2022-11-16 12:02:37,430 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 599 selfloop transitions, 157 changer transitions 77/919 dead transitions. [2022-11-16 12:02:37,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 919 transitions, 13405 flow [2022-11-16 12:02:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:02:37,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 899 transitions. [2022-11-16 12:02:37,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7273462783171522 [2022-11-16 12:02:37,434 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 899 transitions. [2022-11-16 12:02:37,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 899 transitions. [2022-11-16 12:02:37,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:37,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 899 transitions. [2022-11-16 12:02:37,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.91666666666667) internal successors, (899), 12 states have internal predecessors, (899), 0 states have call successors, (0), 0 states 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 12:02:37,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:37,439 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:37,440 INFO L175 Difference]: Start difference. First operand has 289 places, 565 transitions, 8267 flow. Second operand 12 states and 899 transitions. [2022-11-16 12:02:37,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 919 transitions, 13405 flow [2022-11-16 12:02:38,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 919 transitions, 13081 flow, removed 42 selfloop flow, removed 5 redundant places. [2022-11-16 12:02:38,517 INFO L231 Difference]: Finished difference. Result has 299 places, 576 transitions, 8700 flow [2022-11-16 12:02:38,517 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=7962, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=8700, PETRI_PLACES=299, PETRI_TRANSITIONS=576} [2022-11-16 12:02:38,518 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 197 predicate places. [2022-11-16 12:02:38,518 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 576 transitions, 8700 flow [2022-11-16 12:02:38,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:38,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:38,519 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:38,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:02:38,519 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:38,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:38,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1901897764, now seen corresponding path program 8 times [2022-11-16 12:02:38,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:38,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944653092] [2022-11-16 12:02:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:38,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:39,350 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:39,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:39,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944653092] [2022-11-16 12:02:39,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944653092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:39,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:39,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258452348] [2022-11-16 12:02:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:39,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:39,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:39,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:39,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:39,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:39,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 576 transitions, 8700 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:39,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:39,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:39,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:43,689 INFO L130 PetriNetUnfolder]: 2939/9149 cut-off events. [2022-11-16 12:02:43,690 INFO L131 PetriNetUnfolder]: For 108489/108573 co-relation queries the response was YES. [2022-11-16 12:02:43,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49316 conditions, 9149 events. 2939/9149 cut-off events. For 108489/108573 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 95613 event pairs, 742 based on Foata normal form. 111/9246 useless extension candidates. Maximal degree in co-relation 49225. Up to 2178 conditions per place. [2022-11-16 12:02:43,865 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 569 selfloop transitions, 152 changer transitions 95/902 dead transitions. [2022-11-16 12:02:43,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 902 transitions, 13938 flow [2022-11-16 12:02:43,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:02:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:02:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 811 transitions. [2022-11-16 12:02:43,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7157987643424537 [2022-11-16 12:02:43,869 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 811 transitions. [2022-11-16 12:02:43,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 811 transitions. [2022-11-16 12:02:43,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:43,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 811 transitions. [2022-11-16 12:02:43,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.72727272727273) internal successors, (811), 11 states have internal predecessors, (811), 0 states have call successors, (0), 0 states 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 12:02:43,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:43,874 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:43,875 INFO L175 Difference]: Start difference. First operand has 299 places, 576 transitions, 8700 flow. Second operand 11 states and 811 transitions. [2022-11-16 12:02:43,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 902 transitions, 13938 flow [2022-11-16 12:02:44,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 902 transitions, 13715 flow, removed 24 selfloop flow, removed 7 redundant places. [2022-11-16 12:02:44,871 INFO L231 Difference]: Finished difference. Result has 308 places, 600 transitions, 9588 flow [2022-11-16 12:02:44,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=8493, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9588, PETRI_PLACES=308, PETRI_TRANSITIONS=600} [2022-11-16 12:02:44,871 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 206 predicate places. [2022-11-16 12:02:44,872 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 600 transitions, 9588 flow [2022-11-16 12:02:44,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:44,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:44,872 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:44,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:02:44,872 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash 355626568, now seen corresponding path program 9 times [2022-11-16 12:02:44,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:44,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371314854] [2022-11-16 12:02:44,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:44,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:46,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:46,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371314854] [2022-11-16 12:02:46,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371314854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:46,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:46,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:46,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146911564] [2022-11-16 12:02:46,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:46,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:46,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:46,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:46,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:46,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 600 transitions, 9588 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:46,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:46,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:46,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:50,656 INFO L130 PetriNetUnfolder]: 2964/9215 cut-off events. [2022-11-16 12:02:50,656 INFO L131 PetriNetUnfolder]: For 121310/121397 co-relation queries the response was YES. [2022-11-16 12:02:50,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51393 conditions, 9215 events. 2964/9215 cut-off events. For 121310/121397 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 96627 event pairs, 637 based on Foata normal form. 110/9307 useless extension candidates. Maximal degree in co-relation 51297. Up to 2189 conditions per place. [2022-11-16 12:02:50,854 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 621 selfloop transitions, 143 changer transitions 90/940 dead transitions. [2022-11-16 12:02:50,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 940 transitions, 14606 flow [2022-11-16 12:02:50,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:02:50,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 902 transitions. [2022-11-16 12:02:50,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7297734627831716 [2022-11-16 12:02:50,857 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 902 transitions. [2022-11-16 12:02:50,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 902 transitions. [2022-11-16 12:02:50,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:50,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 902 transitions. [2022-11-16 12:02:50,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.16666666666667) internal successors, (902), 12 states have internal predecessors, (902), 0 states have call successors, (0), 0 states 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 12:02:50,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:50,861 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:50,861 INFO L175 Difference]: Start difference. First operand has 308 places, 600 transitions, 9588 flow. Second operand 12 states and 902 transitions. [2022-11-16 12:02:50,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 940 transitions, 14606 flow [2022-11-16 12:02:51,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 940 transitions, 14403 flow, removed 73 selfloop flow, removed 2 redundant places. [2022-11-16 12:02:51,917 INFO L231 Difference]: Finished difference. Result has 322 places, 607 transitions, 9976 flow [2022-11-16 12:02:51,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9390, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9976, PETRI_PLACES=322, PETRI_TRANSITIONS=607} [2022-11-16 12:02:51,917 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 220 predicate places. [2022-11-16 12:02:51,918 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 607 transitions, 9976 flow [2022-11-16 12:02:51,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:51,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:51,918 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:51,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:02:51,918 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:51,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash -223758818, now seen corresponding path program 10 times [2022-11-16 12:02:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:51,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448598654] [2022-11-16 12:02:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:51,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:02:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:02:53,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:02:53,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448598654] [2022-11-16 12:02:53,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448598654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:02:53,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:02:53,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:02:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142749657] [2022-11-16 12:02:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:02:53,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:02:53,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:02:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:02:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:02:53,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:02:53,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 607 transitions, 9976 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:53,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:02:53,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:02:53,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:02:57,913 INFO L130 PetriNetUnfolder]: 2943/9191 cut-off events. [2022-11-16 12:02:57,914 INFO L131 PetriNetUnfolder]: For 133608/133696 co-relation queries the response was YES. [2022-11-16 12:02:58,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52285 conditions, 9191 events. 2943/9191 cut-off events. For 133608/133696 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 96540 event pairs, 610 based on Foata normal form. 105/9275 useless extension candidates. Maximal degree in co-relation 52184. Up to 2188 conditions per place. [2022-11-16 12:02:58,075 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 595 selfloop transitions, 158 changer transitions 88/927 dead transitions. [2022-11-16 12:02:58,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 927 transitions, 14610 flow [2022-11-16 12:02:58,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:02:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:02:58,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 897 transitions. [2022-11-16 12:02:58,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7257281553398058 [2022-11-16 12:02:58,082 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 897 transitions. [2022-11-16 12:02:58,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 897 transitions. [2022-11-16 12:02:58,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:02:58,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 897 transitions. [2022-11-16 12:02:58,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:02:58,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:58,087 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:02:58,087 INFO L175 Difference]: Start difference. First operand has 322 places, 607 transitions, 9976 flow. Second operand 12 states and 897 transitions. [2022-11-16 12:02:58,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 927 transitions, 14610 flow [2022-11-16 12:02:59,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 927 transitions, 14445 flow, removed 28 selfloop flow, removed 4 redundant places. [2022-11-16 12:02:59,191 INFO L231 Difference]: Finished difference. Result has 332 places, 604 transitions, 10121 flow [2022-11-16 12:02:59,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9813, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10121, PETRI_PLACES=332, PETRI_TRANSITIONS=604} [2022-11-16 12:02:59,192 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 230 predicate places. [2022-11-16 12:02:59,192 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 604 transitions, 10121 flow [2022-11-16 12:02:59,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:02:59,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:02:59,193 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:02:59,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:02:59,193 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:02:59,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:02:59,194 INFO L85 PathProgramCache]: Analyzing trace with hash -2086487770, now seen corresponding path program 11 times [2022-11-16 12:02:59,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:02:59,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954317449] [2022-11-16 12:02:59,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:02:59,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:02:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:00,173 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:00,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:00,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954317449] [2022-11-16 12:03:00,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954317449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:00,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:00,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:00,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918736080] [2022-11-16 12:03:00,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:00,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:00,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:00,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:00,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:00,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:00,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 604 transitions, 10121 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:00,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:00,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:00,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:04,709 INFO L130 PetriNetUnfolder]: 2899/9122 cut-off events. [2022-11-16 12:03:04,710 INFO L131 PetriNetUnfolder]: For 140852/140937 co-relation queries the response was YES. [2022-11-16 12:03:04,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52163 conditions, 9122 events. 2899/9122 cut-off events. For 140852/140937 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 95945 event pairs, 603 based on Foata normal form. 96/9204 useless extension candidates. Maximal degree in co-relation 52059. Up to 2183 conditions per place. [2022-11-16 12:03:04,824 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 477 selfloop transitions, 242 changer transitions 82/887 dead transitions. [2022-11-16 12:03:04,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 887 transitions, 14270 flow [2022-11-16 12:03:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:03:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:03:04,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 871 transitions. [2022-11-16 12:03:04,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7046925566343042 [2022-11-16 12:03:04,829 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 871 transitions. [2022-11-16 12:03:04,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 871 transitions. [2022-11-16 12:03:04,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:04,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 871 transitions. [2022-11-16 12:03:04,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 72.58333333333333) internal successors, (871), 12 states have internal predecessors, (871), 0 states have call successors, (0), 0 states 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 12:03:04,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:04,836 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:04,836 INFO L175 Difference]: Start difference. First operand has 332 places, 604 transitions, 10121 flow. Second operand 12 states and 871 transitions. [2022-11-16 12:03:04,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 887 transitions, 14270 flow [2022-11-16 12:03:05,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 887 transitions, 13897 flow, removed 27 selfloop flow, removed 11 redundant places. [2022-11-16 12:03:05,814 INFO L231 Difference]: Finished difference. Result has 335 places, 603 transitions, 10232 flow [2022-11-16 12:03:05,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9753, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10232, PETRI_PLACES=335, PETRI_TRANSITIONS=603} [2022-11-16 12:03:05,815 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 233 predicate places. [2022-11-16 12:03:05,816 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 603 transitions, 10232 flow [2022-11-16 12:03:05,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:05,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:05,816 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:05,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:03:05,818 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:03:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash 636981442, now seen corresponding path program 12 times [2022-11-16 12:03:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:05,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56330072] [2022-11-16 12:03:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:06,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:06,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56330072] [2022-11-16 12:03:06,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56330072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:06,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:06,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:06,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285681977] [2022-11-16 12:03:06,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:06,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:06,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:06,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:06,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:06,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:06,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 603 transitions, 10232 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:06,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:06,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:06,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:11,830 INFO L130 PetriNetUnfolder]: 2933/9255 cut-off events. [2022-11-16 12:03:11,830 INFO L131 PetriNetUnfolder]: For 153736/153823 co-relation queries the response was YES. [2022-11-16 12:03:11,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53321 conditions, 9255 events. 2933/9255 cut-off events. For 153736/153823 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 97688 event pairs, 733 based on Foata normal form. 110/9351 useless extension candidates. Maximal degree in co-relation 53219. Up to 2178 conditions per place. [2022-11-16 12:03:11,957 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 577 selfloop transitions, 163 changer transitions 103/929 dead transitions. [2022-11-16 12:03:11,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 929 transitions, 15299 flow [2022-11-16 12:03:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:03:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:03:11,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2022-11-16 12:03:11,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7224919093851133 [2022-11-16 12:03:11,959 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2022-11-16 12:03:11,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2022-11-16 12:03:11,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:11,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2022-11-16 12:03:11,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 12:03:11,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:11,964 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:11,964 INFO L175 Difference]: Start difference. First operand has 335 places, 603 transitions, 10232 flow. Second operand 12 states and 893 transitions. [2022-11-16 12:03:11,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 929 transitions, 15299 flow [2022-11-16 12:03:13,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 929 transitions, 14870 flow, removed 6 selfloop flow, removed 11 redundant places. [2022-11-16 12:03:13,103 INFO L231 Difference]: Finished difference. Result has 340 places, 616 transitions, 10631 flow [2022-11-16 12:03:13,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=9829, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10631, PETRI_PLACES=340, PETRI_TRANSITIONS=616} [2022-11-16 12:03:13,104 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 238 predicate places. [2022-11-16 12:03:13,104 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 616 transitions, 10631 flow [2022-11-16 12:03:13,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:13,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:13,105 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:13,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:03:13,106 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:03:13,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:13,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1538029446, now seen corresponding path program 13 times [2022-11-16 12:03:13,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:13,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102062908] [2022-11-16 12:03:13,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:13,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:14,004 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:14,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:14,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102062908] [2022-11-16 12:03:14,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102062908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:14,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:14,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:14,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33538985] [2022-11-16 12:03:14,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:14,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:14,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:14,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:14,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:14,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 616 transitions, 10631 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:14,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:14,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:14,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:19,121 INFO L130 PetriNetUnfolder]: 2946/9293 cut-off events. [2022-11-16 12:03:19,121 INFO L131 PetriNetUnfolder]: For 162072/162160 co-relation queries the response was YES. [2022-11-16 12:03:19,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 9293 events. 2946/9293 cut-off events. For 162072/162160 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 98253 event pairs, 673 based on Foata normal form. 111/9390 useless extension candidates. Maximal degree in co-relation 53785. Up to 2175 conditions per place. [2022-11-16 12:03:19,315 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 519 selfloop transitions, 205 changer transitions 89/899 dead transitions. [2022-11-16 12:03:19,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 899 transitions, 14914 flow [2022-11-16 12:03:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:03:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:03:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 813 transitions. [2022-11-16 12:03:19,318 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7175639894086496 [2022-11-16 12:03:19,318 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 813 transitions. [2022-11-16 12:03:19,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 813 transitions. [2022-11-16 12:03:19,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:19,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 813 transitions. [2022-11-16 12:03:19,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 73.9090909090909) internal successors, (813), 11 states have internal predecessors, (813), 0 states have call successors, (0), 0 states 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 12:03:19,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:19,322 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 103.0) internal successors, (1236), 12 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:19,323 INFO L175 Difference]: Start difference. First operand has 340 places, 616 transitions, 10631 flow. Second operand 11 states and 813 transitions. [2022-11-16 12:03:19,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 899 transitions, 14914 flow [2022-11-16 12:03:20,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 899 transitions, 14534 flow, removed 59 selfloop flow, removed 5 redundant places. [2022-11-16 12:03:20,939 INFO L231 Difference]: Finished difference. Result has 349 places, 620 transitions, 10821 flow [2022-11-16 12:03:20,940 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10263, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10821, PETRI_PLACES=349, PETRI_TRANSITIONS=620} [2022-11-16 12:03:20,941 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 247 predicate places. [2022-11-16 12:03:20,941 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 620 transitions, 10821 flow [2022-11-16 12:03:20,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:20,942 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:20,942 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:20,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:03:20,943 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:03:20,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1510876976, now seen corresponding path program 14 times [2022-11-16 12:03:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:20,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613661289] [2022-11-16 12:03:20,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:20,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:21,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613661289] [2022-11-16 12:03:21,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613661289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:21,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:21,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552481397] [2022-11-16 12:03:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:21,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:21,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:21,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 620 transitions, 10821 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:21,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:21,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:21,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:26,891 INFO L130 PetriNetUnfolder]: 2925/9278 cut-off events. [2022-11-16 12:03:26,891 INFO L131 PetriNetUnfolder]: For 165971/166059 co-relation queries the response was YES. [2022-11-16 12:03:27,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53940 conditions, 9278 events. 2925/9278 cut-off events. For 165971/166059 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 98394 event pairs, 666 based on Foata normal form. 105/9366 useless extension candidates. Maximal degree in co-relation 53830. Up to 2177 conditions per place. [2022-11-16 12:03:27,071 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 517 selfloop transitions, 206 changer transitions 98/907 dead transitions. [2022-11-16 12:03:27,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 907 transitions, 15036 flow [2022-11-16 12:03:27,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:03:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:03:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2022-11-16 12:03:27,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7184466019417476 [2022-11-16 12:03:27,074 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2022-11-16 12:03:27,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2022-11-16 12:03:27,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:27,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2022-11-16 12:03:27,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:03:27,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:27,079 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:27,079 INFO L175 Difference]: Start difference. First operand has 349 places, 620 transitions, 10821 flow. Second operand 12 states and 888 transitions. [2022-11-16 12:03:27,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 907 transitions, 15036 flow [2022-11-16 12:03:28,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 907 transitions, 14648 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-16 12:03:28,519 INFO L231 Difference]: Finished difference. Result has 357 places, 617 transitions, 10832 flow [2022-11-16 12:03:28,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10436, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10832, PETRI_PLACES=357, PETRI_TRANSITIONS=617} [2022-11-16 12:03:28,520 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 255 predicate places. [2022-11-16 12:03:28,520 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 617 transitions, 10832 flow [2022-11-16 12:03:28,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:28,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:28,521 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:28,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:03:28,522 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:03:28,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:28,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1952645320, now seen corresponding path program 15 times [2022-11-16 12:03:28,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:28,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264934080] [2022-11-16 12:03:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:28,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:29,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:29,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264934080] [2022-11-16 12:03:29,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264934080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:29,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:29,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732699595] [2022-11-16 12:03:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:29,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:29,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:29,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:29,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:29,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:29,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 617 transitions, 10832 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:29,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:29,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:29,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:03:34,084 INFO L130 PetriNetUnfolder]: 2909/9254 cut-off events. [2022-11-16 12:03:34,084 INFO L131 PetriNetUnfolder]: For 168555/168639 co-relation queries the response was YES. [2022-11-16 12:03:34,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53922 conditions, 9254 events. 2909/9254 cut-off events. For 168555/168639 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 98131 event pairs, 704 based on Foata normal form. 95/9333 useless extension candidates. Maximal degree in co-relation 53809. Up to 2175 conditions per place. [2022-11-16 12:03:34,258 INFO L137 encePairwiseOnDemand]: 84/103 looper letters, 553 selfloop transitions, 178 changer transitions 101/918 dead transitions. [2022-11-16 12:03:34,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 918 transitions, 15347 flow [2022-11-16 12:03:34,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:03:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:03:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 887 transitions. [2022-11-16 12:03:34,260 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7176375404530745 [2022-11-16 12:03:34,260 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 887 transitions. [2022-11-16 12:03:34,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 887 transitions. [2022-11-16 12:03:34,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:03:34,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 887 transitions. [2022-11-16 12:03:34,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.91666666666667) internal successors, (887), 12 states have internal predecessors, (887), 0 states have call successors, (0), 0 states 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 12:03:34,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:34,265 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states 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 12:03:34,266 INFO L175 Difference]: Start difference. First operand has 357 places, 617 transitions, 10832 flow. Second operand 12 states and 887 transitions. [2022-11-16 12:03:34,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 918 transitions, 15347 flow [2022-11-16 12:03:35,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 918 transitions, 14898 flow, removed 12 selfloop flow, removed 11 redundant places. [2022-11-16 12:03:35,568 INFO L231 Difference]: Finished difference. Result has 361 places, 622 transitions, 10967 flow [2022-11-16 12:03:35,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=103, PETRI_DIFFERENCE_MINUEND_FLOW=10393, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10967, PETRI_PLACES=361, PETRI_TRANSITIONS=622} [2022-11-16 12:03:35,570 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 259 predicate places. [2022-11-16 12:03:35,570 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 622 transitions, 10967 flow [2022-11-16 12:03:35,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:35,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:03:35,571 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:03:35,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:03:35,571 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:03:35,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:03:35,572 INFO L85 PathProgramCache]: Analyzing trace with hash 395817650, now seen corresponding path program 16 times [2022-11-16 12:03:35,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:03:35,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855560339] [2022-11-16 12:03:35,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:03:35,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:03:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:03:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-16 12:03:36,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:03:36,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855560339] [2022-11-16 12:03:36,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855560339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:03:36,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:03:36,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 12:03:36,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625985117] [2022-11-16 12:03:36,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:03:36,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:03:36,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:03:36,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:03:36,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:03:36,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 103 [2022-11-16 12:03:36,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 622 transitions, 10967 flow. Second operand has 10 states, 10 states have (on average 58.7) internal successors, (587), 10 states have internal predecessors, (587), 0 states have call successors, (0), 0 states 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 12:03:36,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:03:36,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 103 [2022-11-16 12:03:36,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand