./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:13:07,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:13:07,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:13:07,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:13:07,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:13:07,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:13:07,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:13:07,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:13:07,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:13:07,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:13:07,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:13:07,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:13:07,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:13:07,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:13:07,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:13:07,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:13:07,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:13:07,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:13:07,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:13:07,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:13:07,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:13:07,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:13:07,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:13:07,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:13:07,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:13:07,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:13:07,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:13:07,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:13:07,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:13:07,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:13:07,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:13:07,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:13:07,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:13:07,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:13:07,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:13:07,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:13:07,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:13:07,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:13:07,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:13:07,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:13:07,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:13:07,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:13:07,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:13:07,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:13:07,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:13:07,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:13:07,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:13:07,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:13:07,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:13:07,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:13:07,666 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:13:07,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:13:07,671 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:13:07,671 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:13:07,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:13:07,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:13:07,672 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:13:07,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:13:07,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:13:07,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:13:07,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:13:07,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:13:07,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:13:07,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:13:07,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:13:07,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:13:07,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:13:07,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:13:07,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:13:07,677 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:13:07,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:13:07,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:13:07,677 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_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1f81f307bb0fd2f7d30845e458dba6e8acf9b3ee1da86e74967e4c3005bce62 [2022-11-18 20:13:08,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:13:08,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:13:08,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:13:08,031 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:13:08,033 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:13:08,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-18 20:13:08,124 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/data/267f6be2e/531431e43cec4fe7b23da6213e3b1bcf/FLAG06199382b [2022-11-18 20:13:08,629 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:13:08,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c [2022-11-18 20:13:08,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/data/267f6be2e/531431e43cec4fe7b23da6213e3b1bcf/FLAG06199382b [2022-11-18 20:13:09,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/data/267f6be2e/531431e43cec4fe7b23da6213e3b1bcf [2022-11-18 20:13:09,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:13:09,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:13:09,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:13:09,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:13:09,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:13:09,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3b1430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09, skipping insertion in model container [2022-11-18 20:13:09,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:13:09,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:13:09,357 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-18 20:13:09,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:13:09,387 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:13:09,448 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/sv-benchmarks/c/weaver/popl20-more-parray-copy.wvr.c[2385,2398] [2022-11-18 20:13:09,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:13:09,471 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:13:09,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09 WrapperNode [2022-11-18 20:13:09,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:13:09,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:13:09,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:13:09,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:13:09,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,551 INFO L138 Inliner]: procedures = 24, calls = 41, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 218 [2022-11-18 20:13:09,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:13:09,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:13:09,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:13:09,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:13:09,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:13:09,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:13:09,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:13:09,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:13:09,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (1/1) ... [2022-11-18 20:13:09,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:13:09,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:13:09,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:13:09,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d379e4c-a5e5-4dc7-9a7c-53fc8b0cf30b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:13:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:13:09,722 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:13:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:13:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:13:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:13:09,723 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:13:09,723 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:13:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:13:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:13:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:13:09,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:13:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:13:09,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:13:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:13:09,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:13:09,727 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:13:09,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:13:09,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:13:10,546 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:13:10,558 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:13:10,559 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:13:10,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:13:10 BoogieIcfgContainer [2022-11-18 20:13:10,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:13:10,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:13:10,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:13:10,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:13:10,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:13:09" (1/3) ... [2022-11-18 20:13:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5755d44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:13:10, skipping insertion in model container [2022-11-18 20:13:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:13:09" (2/3) ... [2022-11-18 20:13:10,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5755d44b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:13:10, skipping insertion in model container [2022-11-18 20:13:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:13:10" (3/3) ... [2022-11-18 20:13:10,572 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-parray-copy.wvr.c [2022-11-18 20:13:10,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:13:10,592 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:13:10,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-11-18 20:13:10,592 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:13:10,853 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:13:10,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 383 transitions, 790 flow [2022-11-18 20:13:11,035 INFO L130 PetriNetUnfolder]: 19/380 cut-off events. [2022-11-18 20:13:11,038 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:13:11,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 380 events. 19/380 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 256. Up to 2 conditions per place. [2022-11-18 20:13:11,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 383 transitions, 790 flow [2022-11-18 20:13:11,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 350 places, 358 transitions, 734 flow [2022-11-18 20:13:11,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:13:11,080 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;@10fb33b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:13:11,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-18 20:13:11,090 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-18 20:13:11,090 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:13:11,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:11,091 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] [2022-11-18 20:13:11,092 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:11,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:11,097 INFO L85 PathProgramCache]: Analyzing trace with hash 943271656, now seen corresponding path program 1 times [2022-11-18 20:13:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:11,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222094901] [2022-11-18 20:13:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:11,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:11,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:11,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222094901] [2022-11-18 20:13:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222094901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:11,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:11,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140487794] [2022-11-18 20:13:11,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:11,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:11,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:11,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:11,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:11,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-18 20:13:11,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 358 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:11,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:11,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-18 20:13:11,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:11,797 INFO L130 PetriNetUnfolder]: 62/755 cut-off events. [2022-11-18 20:13:11,797 INFO L131 PetriNetUnfolder]: For 81/93 co-relation queries the response was YES. [2022-11-18 20:13:11,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893 conditions, 755 events. 62/755 cut-off events. For 81/93 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3288 event pairs, 39 based on Foata normal form. 38/646 useless extension candidates. Maximal degree in co-relation 604. Up to 99 conditions per place. [2022-11-18 20:13:11,812 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 21 selfloop transitions, 2 changer transitions 6/346 dead transitions. [2022-11-18 20:13:11,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 346 transitions, 756 flow [2022-11-18 20:13:11,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1073 transitions. [2022-11-18 20:13:11,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9338555265448216 [2022-11-18 20:13:11,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1073 transitions. [2022-11-18 20:13:11,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1073 transitions. [2022-11-18 20:13:11,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:11,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1073 transitions. [2022-11-18 20:13:11,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 357.6666666666667) internal successors, (1073), 3 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:11,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:11,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:11,872 INFO L175 Difference]: Start difference. First operand has 350 places, 358 transitions, 734 flow. Second operand 3 states and 1073 transitions. [2022-11-18 20:13:11,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 346 transitions, 756 flow [2022-11-18 20:13:11,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 346 transitions, 744 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:13:11,898 INFO L231 Difference]: Finished difference. Result has 345 places, 340 transitions, 690 flow [2022-11-18 20:13:11,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=345, PETRI_TRANSITIONS=340} [2022-11-18 20:13:11,909 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -5 predicate places. [2022-11-18 20:13:11,910 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 340 transitions, 690 flow [2022-11-18 20:13:11,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:11,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:11,912 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] [2022-11-18 20:13:11,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:13:11,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:11,915 INFO L85 PathProgramCache]: Analyzing trace with hash -239799142, now seen corresponding path program 1 times [2022-11-18 20:13:11,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:11,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381947933] [2022-11-18 20:13:11,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:11,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:12,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:12,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381947933] [2022-11-18 20:13:12,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381947933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:12,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:12,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:12,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699803431] [2022-11-18 20:13:12,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:12,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:12,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:12,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:12,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 383 [2022-11-18 20:13:12,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 340 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:12,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 383 [2022-11-18 20:13:12,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:12,233 INFO L130 PetriNetUnfolder]: 38/647 cut-off events. [2022-11-18 20:13:12,234 INFO L131 PetriNetUnfolder]: For 9/26 co-relation queries the response was YES. [2022-11-18 20:13:12,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 647 events. 38/647 cut-off events. For 9/26 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2537 event pairs, 21 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 710. Up to 80 conditions per place. [2022-11-18 20:13:12,243 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 27 selfloop transitions, 2 changer transitions 0/339 dead transitions. [2022-11-18 20:13:12,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 339 transitions, 746 flow [2022-11-18 20:13:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1050 transitions. [2022-11-18 20:13:12,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9138381201044387 [2022-11-18 20:13:12,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1050 transitions. [2022-11-18 20:13:12,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1050 transitions. [2022-11-18 20:13:12,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:12,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1050 transitions. [2022-11-18 20:13:12,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,256 INFO L175 Difference]: Start difference. First operand has 345 places, 340 transitions, 690 flow. Second operand 3 states and 1050 transitions. [2022-11-18 20:13:12,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 339 transitions, 746 flow [2022-11-18 20:13:12,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 339 transitions, 742 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:13:12,268 INFO L231 Difference]: Finished difference. Result has 338 places, 339 transitions, 688 flow [2022-11-18 20:13:12,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=338, PETRI_TRANSITIONS=339} [2022-11-18 20:13:12,270 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -12 predicate places. [2022-11-18 20:13:12,270 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 339 transitions, 688 flow [2022-11-18 20:13:12,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:12,272 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] [2022-11-18 20:13:12,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:13:12,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1881339077, now seen corresponding path program 1 times [2022-11-18 20:13:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:12,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154418797] [2022-11-18 20:13:12,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:12,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:12,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:12,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154418797] [2022-11-18 20:13:12,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154418797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:12,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:12,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:12,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675141597] [2022-11-18 20:13:12,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:12,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:12,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:12,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:12,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:12,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 383 [2022-11-18 20:13:12,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 339 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:12,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 383 [2022-11-18 20:13:12,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:12,551 INFO L130 PetriNetUnfolder]: 27/591 cut-off events. [2022-11-18 20:13:12,551 INFO L131 PetriNetUnfolder]: For 8/17 co-relation queries the response was YES. [2022-11-18 20:13:12,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 591 events. 27/591 cut-off events. For 8/17 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2089 event pairs, 12 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 615. Up to 50 conditions per place. [2022-11-18 20:13:12,559 INFO L137 encePairwiseOnDemand]: 376/383 looper letters, 19 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2022-11-18 20:13:12,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 333 transitions, 716 flow [2022-11-18 20:13:12,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1055 transitions. [2022-11-18 20:13:12,564 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.918189730200174 [2022-11-18 20:13:12,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1055 transitions. [2022-11-18 20:13:12,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1055 transitions. [2022-11-18 20:13:12,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:12,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1055 transitions. [2022-11-18 20:13:12,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.6666666666667) internal successors, (1055), 3 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,573 INFO L175 Difference]: Start difference. First operand has 338 places, 339 transitions, 688 flow. Second operand 3 states and 1055 transitions. [2022-11-18 20:13:12,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 333 transitions, 716 flow [2022-11-18 20:13:12,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 712 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:13:12,605 INFO L231 Difference]: Finished difference. Result has 332 places, 333 transitions, 674 flow [2022-11-18 20:13:12,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=332, PETRI_TRANSITIONS=333} [2022-11-18 20:13:12,609 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-18 20:13:12,609 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 333 transitions, 674 flow [2022-11-18 20:13:12,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:12,610 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:12,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:13:12,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:12,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:12,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1945569182, now seen corresponding path program 1 times [2022-11-18 20:13:12,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:12,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503293143] [2022-11-18 20:13:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:12,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:12,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:12,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503293143] [2022-11-18 20:13:12,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503293143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:12,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:12,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:12,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430614110] [2022-11-18 20:13:12,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:12,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:12,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:12,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:12,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-18 20:13:12,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 333 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:12,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:12,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-18 20:13:12,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:13,134 INFO L130 PetriNetUnfolder]: 226/1810 cut-off events. [2022-11-18 20:13:13,134 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-18 20:13:13,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 1810 events. 226/1810 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13499 event pairs, 135 based on Foata normal form. 0/1482 useless extension candidates. Maximal degree in co-relation 2122. Up to 325 conditions per place. [2022-11-18 20:13:13,154 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2022-11-18 20:13:13,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 332 transitions, 718 flow [2022-11-18 20:13:13,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:13,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-18 20:13:13,157 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-18 20:13:13,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-18 20:13:13,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-18 20:13:13,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:13,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-18 20:13:13,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:13,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:13,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:13,171 INFO L175 Difference]: Start difference. First operand has 332 places, 333 transitions, 674 flow. Second operand 3 states and 1062 transitions. [2022-11-18 20:13:13,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 332 transitions, 718 flow [2022-11-18 20:13:13,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 332 transitions, 717 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:13:13,178 INFO L231 Difference]: Finished difference. Result has 332 places, 332 transitions, 675 flow [2022-11-18 20:13:13,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=332, PETRI_TRANSITIONS=332} [2022-11-18 20:13:13,184 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -18 predicate places. [2022-11-18 20:13:13,184 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 332 transitions, 675 flow [2022-11-18 20:13:13,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:13,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:13,186 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:13,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:13:13,186 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:13,186 INFO L85 PathProgramCache]: Analyzing trace with hash 89045610, now seen corresponding path program 1 times [2022-11-18 20:13:13,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:13,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462791267] [2022-11-18 20:13:13,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:13,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:13,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:13,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:13,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462791267] [2022-11-18 20:13:13,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462791267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:13,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:13,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:13:13,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543855308] [2022-11-18 20:13:13,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:13,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:13:13,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:13,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:13:13,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:13:13,903 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 383 [2022-11-18 20:13:13,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 332 transitions, 675 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:13,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:13,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 383 [2022-11-18 20:13:13,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:30,124 INFO L130 PetriNetUnfolder]: 46936/99170 cut-off events. [2022-11-18 20:13:30,125 INFO L131 PetriNetUnfolder]: For 337/557 co-relation queries the response was YES. [2022-11-18 20:13:30,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163162 conditions, 99170 events. 46936/99170 cut-off events. For 337/557 co-relation queries the response was YES. Maximal size of possible extension queue 2929. Compared 1141274 event pairs, 42984 based on Foata normal form. 0/80984 useless extension candidates. Maximal degree in co-relation 163124. Up to 63794 conditions per place. [2022-11-18 20:13:30,900 INFO L137 encePairwiseOnDemand]: 371/383 looper letters, 93 selfloop transitions, 10 changer transitions 0/330 dead transitions. [2022-11-18 20:13:30,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 330 transitions, 877 flow [2022-11-18 20:13:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:13:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:13:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1689 transitions. [2022-11-18 20:13:30,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349869451697127 [2022-11-18 20:13:30,905 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1689 transitions. [2022-11-18 20:13:30,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1689 transitions. [2022-11-18 20:13:30,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:30,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1689 transitions. [2022-11-18 20:13:30,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.5) internal successors, (1689), 6 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:30,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:30,917 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 383.0) internal successors, (2681), 7 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:30,917 INFO L175 Difference]: Start difference. First operand has 332 places, 332 transitions, 675 flow. Second operand 6 states and 1689 transitions. [2022-11-18 20:13:30,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 330 transitions, 877 flow [2022-11-18 20:13:30,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 330 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:13:30,924 INFO L231 Difference]: Finished difference. Result has 333 places, 330 transitions, 687 flow [2022-11-18 20:13:30,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=687, PETRI_PLACES=333, PETRI_TRANSITIONS=330} [2022-11-18 20:13:30,928 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -17 predicate places. [2022-11-18 20:13:30,928 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 330 transitions, 687 flow [2022-11-18 20:13:30,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:30,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:30,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:30,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:13:30,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:30,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:30,932 INFO L85 PathProgramCache]: Analyzing trace with hash -188757247, now seen corresponding path program 1 times [2022-11-18 20:13:30,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:30,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322828484] [2022-11-18 20:13:30,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:30,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:31,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:31,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322828484] [2022-11-18 20:13:31,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322828484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:31,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:31,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:31,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006631649] [2022-11-18 20:13:31,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:31,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:31,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:31,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 383 [2022-11-18 20:13:31,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 330 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:31,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 383 [2022-11-18 20:13:31,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:31,282 INFO L130 PetriNetUnfolder]: 226/1694 cut-off events. [2022-11-18 20:13:31,282 INFO L131 PetriNetUnfolder]: For 42/49 co-relation queries the response was YES. [2022-11-18 20:13:31,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 1694 events. 226/1694 cut-off events. For 42/49 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 12474 event pairs, 135 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 2028. Up to 331 conditions per place. [2022-11-18 20:13:31,296 INFO L137 encePairwiseOnDemand]: 380/383 looper letters, 21 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2022-11-18 20:13:31,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 329 transitions, 731 flow [2022-11-18 20:13:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:31,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-18 20:13:31,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9242819843342036 [2022-11-18 20:13:31,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-18 20:13:31,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-18 20:13:31,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:31,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-18 20:13:31,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,306 INFO L175 Difference]: Start difference. First operand has 333 places, 330 transitions, 687 flow. Second operand 3 states and 1062 transitions. [2022-11-18 20:13:31,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 329 transitions, 731 flow [2022-11-18 20:13:31,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 711 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:13:31,312 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 669 flow [2022-11-18 20:13:31,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=669, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2022-11-18 20:13:31,314 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -21 predicate places. [2022-11-18 20:13:31,314 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 669 flow [2022-11-18 20:13:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:31,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:31,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:13:31,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:31,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:31,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1424858210, now seen corresponding path program 1 times [2022-11-18 20:13:31,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:31,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755379806] [2022-11-18 20:13:31,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:31,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:31,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:31,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755379806] [2022-11-18 20:13:31,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755379806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:31,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:31,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:31,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636125606] [2022-11-18 20:13:31,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:31,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:31,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:31,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:31,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:31,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-18 20:13:31,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 669 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:31,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-18 20:13:31,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:31,475 INFO L130 PetriNetUnfolder]: 39/625 cut-off events. [2022-11-18 20:13:31,475 INFO L131 PetriNetUnfolder]: For 13/19 co-relation queries the response was YES. [2022-11-18 20:13:31,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 625 events. 39/625 cut-off events. For 13/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2339 event pairs, 20 based on Foata normal form. 0/544 useless extension candidates. Maximal degree in co-relation 654. Up to 56 conditions per place. [2022-11-18 20:13:31,481 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 15 selfloop transitions, 1 changer transitions 0/325 dead transitions. [2022-11-18 20:13:31,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 325 transitions, 693 flow [2022-11-18 20:13:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1067 transitions. [2022-11-18 20:13:31,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9286335944299391 [2022-11-18 20:13:31,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1067 transitions. [2022-11-18 20:13:31,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1067 transitions. [2022-11-18 20:13:31,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:31,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1067 transitions. [2022-11-18 20:13:31,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.6666666666667) internal successors, (1067), 3 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,490 INFO L175 Difference]: Start difference. First operand has 329 places, 329 transitions, 669 flow. Second operand 3 states and 1067 transitions. [2022-11-18 20:13:31,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 325 transitions, 693 flow [2022-11-18 20:13:31,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 325 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:13:31,496 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 659 flow [2022-11-18 20:13:31,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2022-11-18 20:13:31,497 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -25 predicate places. [2022-11-18 20:13:31,498 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 659 flow [2022-11-18 20:13:31,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:31,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:31,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:13:31,499 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:31,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash -835366874, now seen corresponding path program 1 times [2022-11-18 20:13:31,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:31,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479182147] [2022-11-18 20:13:31,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:31,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:31,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:31,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479182147] [2022-11-18 20:13:31,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479182147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:31,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:31,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:31,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280771992] [2022-11-18 20:13:31,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:31,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:31,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:31,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:31,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:31,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-18 20:13:31,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:31,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-18 20:13:31,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:31,926 INFO L130 PetriNetUnfolder]: 118/1263 cut-off events. [2022-11-18 20:13:31,926 INFO L131 PetriNetUnfolder]: For 28/33 co-relation queries the response was YES. [2022-11-18 20:13:31,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 1263 events. 118/1263 cut-off events. For 28/33 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7925 event pairs, 22 based on Foata normal form. 1/1106 useless extension candidates. Maximal degree in co-relation 1415. Up to 164 conditions per place. [2022-11-18 20:13:31,937 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-18 20:13:31,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 330 transitions, 724 flow [2022-11-18 20:13:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-18 20:13:31,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-18 20:13:31,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-18 20:13:31,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-18 20:13:31,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:31,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-18 20:13:31,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,949 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 659 flow. Second operand 3 states and 1076 transitions. [2022-11-18 20:13:31,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 330 transitions, 724 flow [2022-11-18 20:13:31,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 330 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:13:31,955 INFO L231 Difference]: Finished difference. Result has 323 places, 325 transitions, 678 flow [2022-11-18 20:13:31,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=323, PETRI_TRANSITIONS=325} [2022-11-18 20:13:31,957 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -27 predicate places. [2022-11-18 20:13:31,958 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 325 transitions, 678 flow [2022-11-18 20:13:31,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:31,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:31,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:31,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:13:31,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:31,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:31,960 INFO L85 PathProgramCache]: Analyzing trace with hash 371346824, now seen corresponding path program 1 times [2022-11-18 20:13:31,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:31,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397921762] [2022-11-18 20:13:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:31,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:32,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:32,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397921762] [2022-11-18 20:13:32,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397921762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:32,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:32,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:13:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562984404] [2022-11-18 20:13:32,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:32,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:13:32,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:32,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:13:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:13:32,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 383 [2022-11-18 20:13:32,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 325 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:32,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 383 [2022-11-18 20:13:32,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:32,271 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [30#L64-1true, 406#(= |#race~M~0| 0), 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 215#L48-3true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-18 20:13:32,272 INFO L383 tUnfolder$Statistics]: this new event has 195 ancestors and is cut-off event [2022-11-18 20:13:32,272 INFO L386 tUnfolder$Statistics]: existing Event has 195 ancestors and is cut-off event [2022-11-18 20:13:32,272 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-18 20:13:32,272 INFO L386 tUnfolder$Statistics]: existing Event has 170 ancestors and is cut-off event [2022-11-18 20:13:32,274 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 20#L48-4true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 264#L84-4true, 410#(= |#race~B~0| 0)]) [2022-11-18 20:13:32,274 INFO L383 tUnfolder$Statistics]: this new event has 196 ancestors and is cut-off event [2022-11-18 20:13:32,274 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-18 20:13:32,274 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-18 20:13:32,274 INFO L386 tUnfolder$Statistics]: existing Event has 196 ancestors and is cut-off event [2022-11-18 20:13:32,278 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([927] L64-->L64-1: Formula: (= |v_#race~B~0_7| 0) InVars {} OutVars{#race~B~0=|v_#race~B~0_7|} AuxVars[] AssignedVars[#race~B~0][218], [406#(= |#race~M~0| 0), 30#L64-1true, 282#L56-1true, 387#(= |#race~N~0| 0), 415#(= |#race~A~0| 0), Black: 408#true, 410#(= |#race~B~0| 0), 232#L85-7true]) [2022-11-18 20:13:32,279 INFO L383 tUnfolder$Statistics]: this new event has 203 ancestors and is cut-off event [2022-11-18 20:13:32,279 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-18 20:13:32,279 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-18 20:13:32,279 INFO L386 tUnfolder$Statistics]: existing Event has 178 ancestors and is cut-off event [2022-11-18 20:13:32,282 INFO L130 PetriNetUnfolder]: 190/1670 cut-off events. [2022-11-18 20:13:32,282 INFO L131 PetriNetUnfolder]: For 35/40 co-relation queries the response was YES. [2022-11-18 20:13:32,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 1670 events. 190/1670 cut-off events. For 35/40 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11600 event pairs, 45 based on Foata normal form. 0/1479 useless extension candidates. Maximal degree in co-relation 1960. Up to 207 conditions per place. [2022-11-18 20:13:32,300 INFO L137 encePairwiseOnDemand]: 375/383 looper letters, 21 selfloop transitions, 4 changer transitions 0/330 dead transitions. [2022-11-18 20:13:32,300 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 330 transitions, 743 flow [2022-11-18 20:13:32,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:13:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:13:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1076 transitions. [2022-11-18 20:13:32,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364664926022629 [2022-11-18 20:13:32,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1076 transitions. [2022-11-18 20:13:32,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1076 transitions. [2022-11-18 20:13:32,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:32,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1076 transitions. [2022-11-18 20:13:32,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.6666666666667) internal successors, (1076), 3 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 383.0) internal successors, (1532), 4 states have internal predecessors, (1532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,310 INFO L175 Difference]: Start difference. First operand has 323 places, 325 transitions, 678 flow. Second operand 3 states and 1076 transitions. [2022-11-18 20:13:32,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 330 transitions, 743 flow [2022-11-18 20:13:32,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 330 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:13:32,318 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 698 flow [2022-11-18 20:13:32,318 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2022-11-18 20:13:32,319 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -28 predicate places. [2022-11-18 20:13:32,319 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 698 flow [2022-11-18 20:13:32,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:32,320 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:32,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:13:32,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:32,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:32,322 INFO L85 PathProgramCache]: Analyzing trace with hash -265555636, now seen corresponding path program 1 times [2022-11-18 20:13:32,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:32,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395406742] [2022-11-18 20:13:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:32,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:32,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:32,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395406742] [2022-11-18 20:13:32,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395406742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:32,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:32,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:13:32,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355944989] [2022-11-18 20:13:32,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:32,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:13:32,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:32,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:13:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:13:32,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 383 [2022-11-18 20:13:32,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 698 flow. Second operand has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:32,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:32,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 383 [2022-11-18 20:13:32,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:33,283 INFO L130 PetriNetUnfolder]: 569/2993 cut-off events. [2022-11-18 20:13:33,283 INFO L131 PetriNetUnfolder]: For 73/158 co-relation queries the response was YES. [2022-11-18 20:13:33,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4339 conditions, 2993 events. 569/2993 cut-off events. For 73/158 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 23020 event pairs, 261 based on Foata normal form. 0/2515 useless extension candidates. Maximal degree in co-relation 4298. Up to 737 conditions per place. [2022-11-18 20:13:33,304 INFO L137 encePairwiseOnDemand]: 369/383 looper letters, 126 selfloop transitions, 18 changer transitions 0/404 dead transitions. [2022-11-18 20:13:33,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 404 transitions, 1160 flow [2022-11-18 20:13:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:13:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:13:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3479 transitions. [2022-11-18 20:13:33,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8257773558034655 [2022-11-18 20:13:33,311 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3479 transitions. [2022-11-18 20:13:33,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3479 transitions. [2022-11-18 20:13:33,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:33,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3479 transitions. [2022-11-18 20:13:33,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 316.27272727272725) internal successors, (3479), 11 states have internal predecessors, (3479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:33,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:33,330 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:33,330 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 698 flow. Second operand 11 states and 3479 transitions. [2022-11-18 20:13:33,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 404 transitions, 1160 flow [2022-11-18 20:13:33,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 404 transitions, 1160 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:13:33,338 INFO L231 Difference]: Finished difference. Result has 336 places, 335 transitions, 784 flow [2022-11-18 20:13:33,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=784, PETRI_PLACES=336, PETRI_TRANSITIONS=335} [2022-11-18 20:13:33,339 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -14 predicate places. [2022-11-18 20:13:33,339 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 335 transitions, 784 flow [2022-11-18 20:13:33,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 306.85714285714283) internal successors, (2148), 7 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:33,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:33,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:33,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:13:33,341 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:33,342 INFO L85 PathProgramCache]: Analyzing trace with hash 308665052, now seen corresponding path program 1 times [2022-11-18 20:13:33,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:33,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908694772] [2022-11-18 20:13:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:33,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:33,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:33,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908694772] [2022-11-18 20:13:33,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908694772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:33,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:33,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:13:33,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790645934] [2022-11-18 20:13:33,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:33,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:13:33,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:13:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:13:33,513 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 383 [2022-11-18 20:13:33,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 335 transitions, 784 flow. Second operand has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:33,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:33,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 383 [2022-11-18 20:13:33,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:13:34,294 INFO L130 PetriNetUnfolder]: 618/4184 cut-off events. [2022-11-18 20:13:34,294 INFO L131 PetriNetUnfolder]: For 301/366 co-relation queries the response was YES. [2022-11-18 20:13:34,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5691 conditions, 4184 events. 618/4184 cut-off events. For 301/366 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 39021 event pairs, 360 based on Foata normal form. 7/3760 useless extension candidates. Maximal degree in co-relation 5642. Up to 792 conditions per place. [2022-11-18 20:13:34,334 INFO L137 encePairwiseOnDemand]: 378/383 looper letters, 45 selfloop transitions, 4 changer transitions 0/349 dead transitions. [2022-11-18 20:13:34,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 349 transitions, 918 flow [2022-11-18 20:13:34,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:13:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:13:34,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1725 transitions. [2022-11-18 20:13:34,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9007832898172323 [2022-11-18 20:13:34,341 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1725 transitions. [2022-11-18 20:13:34,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1725 transitions. [2022-11-18 20:13:34,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:13:34,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1725 transitions. [2022-11-18 20:13:34,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 345.0) internal successors, (1725), 5 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:34,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:34,350 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 383.0) internal successors, (2298), 6 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:34,351 INFO L175 Difference]: Start difference. First operand has 336 places, 335 transitions, 784 flow. Second operand 5 states and 1725 transitions. [2022-11-18 20:13:34,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 349 transitions, 918 flow [2022-11-18 20:13:34,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 349 transitions, 913 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:13:34,361 INFO L231 Difference]: Finished difference. Result has 340 places, 336 transitions, 796 flow [2022-11-18 20:13:34,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=779, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=796, PETRI_PLACES=340, PETRI_TRANSITIONS=336} [2022-11-18 20:13:34,362 INFO L288 CegarLoopForPetriNet]: 350 programPoint places, -10 predicate places. [2022-11-18 20:13:34,362 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 336 transitions, 796 flow [2022-11-18 20:13:34,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 338.4) internal successors, (1692), 5 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:34,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:13:34,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:13:34,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:13:34,363 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-18 20:13:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:13:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2096028094, now seen corresponding path program 1 times [2022-11-18 20:13:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:13:34,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528001536] [2022-11-18 20:13:34,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:13:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:13:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:13:34,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:13:34,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:13:34,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528001536] [2022-11-18 20:13:34,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528001536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:13:34,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:13:34,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:13:34,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342979518] [2022-11-18 20:13:34,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:13:34,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:13:34,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:13:34,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:13:34,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:13:34,878 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 383 [2022-11-18 20:13:34,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 336 transitions, 796 flow. Second operand has 6 states, 6 states have (on average 282.0) internal successors, (1692), 6 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:13:34,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:13:34,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 383 [2022-11-18 20:13:34,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand