./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --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_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/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_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/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_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- 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 19:35:13,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:13,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:13,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:13,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:13,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:13,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:13,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:13,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:13,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:13,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:13,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:13,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:13,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:13,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:13,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:13,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:13,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:13,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:13,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:13,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:13,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:13,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:13,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:13,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:13,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:13,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:13,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:13,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:13,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:13,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:13,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:13,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:13,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:13,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:13,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:13,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:13,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:13,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:13,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:13,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:13,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:35:13,565 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:13,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:13,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:13,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:13,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:35:13,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:35:13,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:13,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:13,571 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:13,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:13,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:35:13,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:35:13,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:13,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:35:13,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:13,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:35:13,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:35:13,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:35:13,576 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:35:13,576 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:35:13,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:13,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:13,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:35:13,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:13,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:13,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:35:13,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:13,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:13,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:35:13,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:35:13,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:13,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:35:13,581 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:35:13,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:35:13,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:35:13,582 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_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2022-11-18 19:35:13,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:13,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:13,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:13,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:13,998 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:14,000 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-18 19:35:14,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/data/c657a9bf4/0703f247cc004d6cbc1b060992f4c928/FLAGd1e86a52c [2022-11-18 19:35:14,998 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:14,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-18 19:35:15,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/data/c657a9bf4/0703f247cc004d6cbc1b060992f4c928/FLAGd1e86a52c [2022-11-18 19:35:15,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/data/c657a9bf4/0703f247cc004d6cbc1b060992f4c928 [2022-11-18 19:35:15,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:15,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:15,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:15,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:15,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:15,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:15" (1/1) ... [2022-11-18 19:35:15,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5b62f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:15, skipping insertion in model container [2022-11-18 19:35:15,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:15" (1/1) ... [2022-11-18 19:35:15,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:15,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:16,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:16,239 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:16,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:16,485 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:16,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16 WrapperNode [2022-11-18 19:35:16,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:16,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:16,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:16,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:16,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,640 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2022-11-18 19:35:16,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:16,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:16,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:16,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:16,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,703 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:16,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:16,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:16,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:16,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (1/1) ... [2022-11-18 19:35:16,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:16,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:16,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:16,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811ab8f1-2e81-4a24-b2fb-59b81ceaebb2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:16,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:35:16,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:35:16,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:35:16,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:35:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:35:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:35:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:35:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:35:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:35:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:35:16,863 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:35:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:35:16,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:16,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:16,903 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 19:35:17,224 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:17,228 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:17,849 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:17,877 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:17,878 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:35:17,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:17 BoogieIcfgContainer [2022-11-18 19:35:17,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:17,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:35:17,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:35:17,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:35:17,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:35:15" (1/3) ... [2022-11-18 19:35:17,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e719474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:17, skipping insertion in model container [2022-11-18 19:35:17,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:16" (2/3) ... [2022-11-18 19:35:17,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e719474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:17, skipping insertion in model container [2022-11-18 19:35:17,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:17" (3/3) ... [2022-11-18 19:35:17,901 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2022-11-18 19:35:17,915 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:35:17,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:35:17,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 19:35:17,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:35:18,064 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:35:18,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 202 transitions, 409 flow [2022-11-18 19:35:18,250 INFO L130 PetriNetUnfolder]: 0/201 cut-off events. [2022-11-18 19:35:18,251 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:35:18,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-18 19:35:18,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 202 transitions, 409 flow [2022-11-18 19:35:18,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 201 transitions, 405 flow [2022-11-18 19:35:18,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:35:18,290 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;@115e897d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:35:18,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-18 19:35:18,304 INFO L130 PetriNetUnfolder]: 0/38 cut-off events. [2022-11-18 19:35:18,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:35:18,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:18,329 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] [2022-11-18 19:35:18,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash -554150042, now seen corresponding path program 1 times [2022-11-18 19:35:18,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:18,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485326998] [2022-11-18 19:35:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:18,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:19,838 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 19:35:19,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:19,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485326998] [2022-11-18 19:35:19,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485326998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:19,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:19,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:19,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705831525] [2022-11-18 19:35:19,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:19,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:19,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:19,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:19,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 202 [2022-11-18 19:35:19,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 201 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states 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 19:35:19,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:19,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 202 [2022-11-18 19:35:19,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:20,825 INFO L130 PetriNetUnfolder]: 360/1264 cut-off events. [2022-11-18 19:35:20,825 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:35:20,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 1264 events. 360/1264 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6537 event pairs, 360 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 1926. Up to 794 conditions per place. [2022-11-18 19:35:20,852 INFO L137 encePairwiseOnDemand]: 190/202 looper letters, 73 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2022-11-18 19:35:20,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 199 transitions, 567 flow [2022-11-18 19:35:20,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 787 transitions. [2022-11-18 19:35:20,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6493399339933993 [2022-11-18 19:35:20,899 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 787 transitions. [2022-11-18 19:35:20,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 787 transitions. [2022-11-18 19:35:20,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:20,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 787 transitions. [2022-11-18 19:35:20,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states 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 19:35:20,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:20,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:20,938 INFO L175 Difference]: Start difference. First operand has 205 places, 201 transitions, 405 flow. Second operand 6 states and 787 transitions. [2022-11-18 19:35:20,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 199 transitions, 567 flow [2022-11-18 19:35:20,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 199 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:35:20,960 INFO L231 Difference]: Finished difference. Result has 207 places, 199 transitions, 420 flow [2022-11-18 19:35:20,964 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=207, PETRI_TRANSITIONS=199} [2022-11-18 19:35:20,970 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 2 predicate places. [2022-11-18 19:35:20,971 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 199 transitions, 420 flow [2022-11-18 19:35:20,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states 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 19:35:20,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:20,973 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] [2022-11-18 19:35:20,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:35:20,974 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:20,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:20,977 INFO L85 PathProgramCache]: Analyzing trace with hash 151441041, now seen corresponding path program 1 times [2022-11-18 19:35:20,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:20,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937093422] [2022-11-18 19:35:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:21,640 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 19:35:21,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:21,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937093422] [2022-11-18 19:35:21,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937093422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:21,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:21,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:21,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608581463] [2022-11-18 19:35:21,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:21,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:21,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:21,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:21,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:21,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 202 [2022-11-18 19:35:21,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 199 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:35:21,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:21,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 202 [2022-11-18 19:35:21,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:22,331 INFO L130 PetriNetUnfolder]: 360/1262 cut-off events. [2022-11-18 19:35:22,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:35:22,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1262 events. 360/1262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6535 event pairs, 360 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 1968. Up to 792 conditions per place. [2022-11-18 19:35:22,344 INFO L137 encePairwiseOnDemand]: 190/202 looper letters, 71 selfloop transitions, 10 changer transitions 0/197 dead transitions. [2022-11-18 19:35:22,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 197 transitions, 578 flow [2022-11-18 19:35:22,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:22,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 785 transitions. [2022-11-18 19:35:22,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6476897689768977 [2022-11-18 19:35:22,350 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 785 transitions. [2022-11-18 19:35:22,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 785 transitions. [2022-11-18 19:35:22,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:22,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 785 transitions. [2022-11-18 19:35:22,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states 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 19:35:22,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:22,360 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:22,360 INFO L175 Difference]: Start difference. First operand has 207 places, 199 transitions, 420 flow. Second operand 6 states and 785 transitions. [2022-11-18 19:35:22,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 197 transitions, 578 flow [2022-11-18 19:35:22,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 197 transitions, 558 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:35:22,375 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 416 flow [2022-11-18 19:35:22,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2022-11-18 19:35:22,377 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 0 predicate places. [2022-11-18 19:35:22,378 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 416 flow [2022-11-18 19:35:22,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:35:22,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:22,380 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] [2022-11-18 19:35:22,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:35:22,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:22,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:22,395 INFO L85 PathProgramCache]: Analyzing trace with hash 710115708, now seen corresponding path program 1 times [2022-11-18 19:35:22,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253277414] [2022-11-18 19:35:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:22,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:22,489 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 19:35:22,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:22,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253277414] [2022-11-18 19:35:22,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253277414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:22,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:22,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:35:22,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513752330] [2022-11-18 19:35:22,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:22,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:35:22,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:35:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:22,502 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 202 [2022-11-18 19:35:22,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 19:35:22,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:22,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 202 [2022-11-18 19:35:22,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:22,611 INFO L130 PetriNetUnfolder]: 18/347 cut-off events. [2022-11-18 19:35:22,611 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:35:22,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 347 events. 18/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 802 event pairs, 18 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2022-11-18 19:35:22,614 INFO L137 encePairwiseOnDemand]: 199/202 looper letters, 19 selfloop transitions, 2 changer transitions 0/196 dead transitions. [2022-11-18 19:35:22,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 196 transitions, 456 flow [2022-11-18 19:35:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:35:22,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:35:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2022-11-18 19:35:22,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9273927392739274 [2022-11-18 19:35:22,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2022-11-18 19:35:22,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2022-11-18 19:35:22,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:22,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2022-11-18 19:35:22,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states 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 19:35:22,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 19:35:22,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 19:35:22,628 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 416 flow. Second operand 3 states and 562 transitions. [2022-11-18 19:35:22,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 196 transitions, 456 flow [2022-11-18 19:35:22,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 196 transitions, 436 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:35:22,635 INFO L231 Difference]: Finished difference. Result has 201 places, 196 transitions, 398 flow [2022-11-18 19:35:22,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=201, PETRI_TRANSITIONS=196} [2022-11-18 19:35:22,640 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, -4 predicate places. [2022-11-18 19:35:22,640 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 196 transitions, 398 flow [2022-11-18 19:35:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 19:35:22,641 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:22,642 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] [2022-11-18 19:35:22,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:35:22,642 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -367913801, now seen corresponding path program 1 times [2022-11-18 19:35:22,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:22,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667063640] [2022-11-18 19:35:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:22,739 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 19:35:22,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:22,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667063640] [2022-11-18 19:35:22,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667063640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:22,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:22,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:35:22,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731050350] [2022-11-18 19:35:22,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:22,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:35:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:35:22,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:35:22,752 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 202 [2022-11-18 19:35:22,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 196 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 19:35:22,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:22,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 202 [2022-11-18 19:35:22,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:22,837 INFO L130 PetriNetUnfolder]: 8/292 cut-off events. [2022-11-18 19:35:22,837 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:35:22,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 292 events. 8/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 489 event pairs, 8 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 265. Up to 27 conditions per place. [2022-11-18 19:35:22,840 INFO L137 encePairwiseOnDemand]: 196/202 looper letters, 12 selfloop transitions, 1 changer transitions 0/191 dead transitions. [2022-11-18 19:35:22,840 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 191 transitions, 414 flow [2022-11-18 19:35:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:35:22,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:35:22,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2022-11-18 19:35:22,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9356435643564357 [2022-11-18 19:35:22,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 567 transitions. [2022-11-18 19:35:22,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 567 transitions. [2022-11-18 19:35:22,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:22,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 567 transitions. [2022-11-18 19:35:22,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:22,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 19:35:22,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states 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 19:35:22,856 INFO L175 Difference]: Start difference. First operand has 201 places, 196 transitions, 398 flow. Second operand 3 states and 567 transitions. [2022-11-18 19:35:22,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 191 transitions, 414 flow [2022-11-18 19:35:22,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 191 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:35:22,862 INFO L231 Difference]: Finished difference. Result has 196 places, 191 transitions, 386 flow [2022-11-18 19:35:22,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=196, PETRI_TRANSITIONS=191} [2022-11-18 19:35:22,864 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, -9 predicate places. [2022-11-18 19:35:22,865 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 191 transitions, 386 flow [2022-11-18 19:35:22,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 19:35:22,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:22,875 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] [2022-11-18 19:35:22,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:35:22,875 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:22,878 INFO L85 PathProgramCache]: Analyzing trace with hash -515357804, now seen corresponding path program 1 times [2022-11-18 19:35:22,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:22,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38481247] [2022-11-18 19:35:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:23,646 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 19:35:23,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:23,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38481247] [2022-11-18 19:35:23,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38481247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:23,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:23,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:23,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164991234] [2022-11-18 19:35:23,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:23,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:23,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:23,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:23,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:23,654 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 202 [2022-11-18 19:35:23,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 191 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states 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 19:35:23,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:23,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 202 [2022-11-18 19:35:23,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:24,237 INFO L130 PetriNetUnfolder]: 416/1340 cut-off events. [2022-11-18 19:35:24,238 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:35:24,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2256 conditions, 1340 events. 416/1340 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6851 event pairs, 416 based on Foata normal form. 0/1191 useless extension candidates. Maximal degree in co-relation 2182. Up to 906 conditions per place. [2022-11-18 19:35:24,248 INFO L137 encePairwiseOnDemand]: 196/202 looper letters, 73 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2022-11-18 19:35:24,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 190 transitions, 540 flow [2022-11-18 19:35:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:24,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 793 transitions. [2022-11-18 19:35:24,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6542904290429042 [2022-11-18 19:35:24,253 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 793 transitions. [2022-11-18 19:35:24,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 793 transitions. [2022-11-18 19:35:24,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:24,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 793 transitions. [2022-11-18 19:35:24,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states 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 19:35:24,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:24,262 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:24,262 INFO L175 Difference]: Start difference. First operand has 196 places, 191 transitions, 386 flow. Second operand 6 states and 793 transitions. [2022-11-18 19:35:24,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 190 transitions, 540 flow [2022-11-18 19:35:24,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 190 transitions, 539 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:35:24,318 INFO L231 Difference]: Finished difference. Result has 199 places, 190 transitions, 393 flow [2022-11-18 19:35:24,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=393, PETRI_PLACES=199, PETRI_TRANSITIONS=190} [2022-11-18 19:35:24,320 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, -6 predicate places. [2022-11-18 19:35:24,320 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 190 transitions, 393 flow [2022-11-18 19:35:24,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states 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 19:35:24,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:24,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:24,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:35:24,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:24,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1627057260, now seen corresponding path program 1 times [2022-11-18 19:35:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:24,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964277529] [2022-11-18 19:35:24,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:25,058 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 19:35:25,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:25,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964277529] [2022-11-18 19:35:25,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964277529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:25,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:25,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:25,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304129362] [2022-11-18 19:35:25,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:25,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:25,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:25,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 202 [2022-11-18 19:35:25,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 190 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 19:35:25,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:25,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 202 [2022-11-18 19:35:25,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:26,361 INFO L130 PetriNetUnfolder]: 748/2355 cut-off events. [2022-11-18 19:35:26,361 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:35:26,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3988 conditions, 2355 events. 748/2355 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14867 event pairs, 75 based on Foata normal form. 0/2108 useless extension candidates. Maximal degree in co-relation 3915. Up to 781 conditions per place. [2022-11-18 19:35:26,379 INFO L137 encePairwiseOnDemand]: 174/202 looper letters, 161 selfloop transitions, 70 changer transitions 0/346 dead transitions. [2022-11-18 19:35:26,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 346 transitions, 1167 flow [2022-11-18 19:35:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 965 transitions. [2022-11-18 19:35:26,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7962046204620462 [2022-11-18 19:35:26,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 965 transitions. [2022-11-18 19:35:26,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 965 transitions. [2022-11-18 19:35:26,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:26,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 965 transitions. [2022-11-18 19:35:26,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.83333333333334) internal successors, (965), 6 states have internal predecessors, (965), 0 states have call successors, (0), 0 states 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 19:35:26,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:26,393 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:26,393 INFO L175 Difference]: Start difference. First operand has 199 places, 190 transitions, 393 flow. Second operand 6 states and 965 transitions. [2022-11-18 19:35:26,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 346 transitions, 1167 flow [2022-11-18 19:35:26,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 346 transitions, 1157 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:35:26,402 INFO L231 Difference]: Finished difference. Result has 203 places, 260 transitions, 861 flow [2022-11-18 19:35:26,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=861, PETRI_PLACES=203, PETRI_TRANSITIONS=260} [2022-11-18 19:35:26,404 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, -2 predicate places. [2022-11-18 19:35:26,404 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 260 transitions, 861 flow [2022-11-18 19:35:26,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.0) internal successors, (768), 6 states have internal predecessors, (768), 0 states have call successors, (0), 0 states 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 19:35:26,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:26,406 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] [2022-11-18 19:35:26,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:35:26,406 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:26,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:26,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2082271934, now seen corresponding path program 1 times [2022-11-18 19:35:26,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:26,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114920011] [2022-11-18 19:35:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:26,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:27,194 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 19:35:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:27,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114920011] [2022-11-18 19:35:27,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114920011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:27,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:27,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:27,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452168356] [2022-11-18 19:35:27,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:27,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:27,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:27,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:27,209 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 202 [2022-11-18 19:35:27,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 260 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 19:35:27,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:27,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 202 [2022-11-18 19:35:27,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:28,348 INFO L130 PetriNetUnfolder]: 836/2662 cut-off events. [2022-11-18 19:35:28,349 INFO L131 PetriNetUnfolder]: For 875/875 co-relation queries the response was YES. [2022-11-18 19:35:28,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5895 conditions, 2662 events. 836/2662 cut-off events. For 875/875 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17276 event pairs, 379 based on Foata normal form. 0/2478 useless extension candidates. Maximal degree in co-relation 5820. Up to 1690 conditions per place. [2022-11-18 19:35:28,376 INFO L137 encePairwiseOnDemand]: 187/202 looper letters, 156 selfloop transitions, 48 changer transitions 0/320 dead transitions. [2022-11-18 19:35:28,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 320 transitions, 1485 flow [2022-11-18 19:35:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 865 transitions. [2022-11-18 19:35:28,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7136963696369637 [2022-11-18 19:35:28,381 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 865 transitions. [2022-11-18 19:35:28,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 865 transitions. [2022-11-18 19:35:28,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:28,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 865 transitions. [2022-11-18 19:35:28,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.16666666666666) internal successors, (865), 6 states have internal predecessors, (865), 0 states have call successors, (0), 0 states 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 19:35:28,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:28,390 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:28,391 INFO L175 Difference]: Start difference. First operand has 203 places, 260 transitions, 861 flow. Second operand 6 states and 865 transitions. [2022-11-18 19:35:28,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 320 transitions, 1485 flow [2022-11-18 19:35:28,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 320 transitions, 1485 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:35:28,420 INFO L231 Difference]: Finished difference. Result has 213 places, 303 transitions, 1249 flow [2022-11-18 19:35:28,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1249, PETRI_PLACES=213, PETRI_TRANSITIONS=303} [2022-11-18 19:35:28,422 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 8 predicate places. [2022-11-18 19:35:28,422 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 303 transitions, 1249 flow [2022-11-18 19:35:28,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states 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 19:35:28,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:28,423 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] [2022-11-18 19:35:28,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:35:28,424 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:28,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:28,425 INFO L85 PathProgramCache]: Analyzing trace with hash -11626879, now seen corresponding path program 1 times [2022-11-18 19:35:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:28,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553886996] [2022-11-18 19:35:28,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:28,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:28,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:29,181 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 19:35:29,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:29,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553886996] [2022-11-18 19:35:29,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553886996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:29,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:29,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:35:29,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241666210] [2022-11-18 19:35:29,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:29,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:35:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:29,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:35:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:35:29,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 202 [2022-11-18 19:35:29,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 303 transitions, 1249 flow. Second operand has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:35:29,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:29,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 202 [2022-11-18 19:35:29,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:30,846 INFO L130 PetriNetUnfolder]: 1029/3395 cut-off events. [2022-11-18 19:35:30,847 INFO L131 PetriNetUnfolder]: For 2087/2134 co-relation queries the response was YES. [2022-11-18 19:35:30,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8409 conditions, 3395 events. 1029/3395 cut-off events. For 2087/2134 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24254 event pairs, 195 based on Foata normal form. 0/3265 useless extension candidates. Maximal degree in co-relation 8326. Up to 1659 conditions per place. [2022-11-18 19:35:30,881 INFO L137 encePairwiseOnDemand]: 180/202 looper letters, 262 selfloop transitions, 135 changer transitions 4/518 dead transitions. [2022-11-18 19:35:30,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 518 transitions, 3143 flow [2022-11-18 19:35:30,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:35:30,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:35:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 932 transitions. [2022-11-18 19:35:30,891 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.768976897689769 [2022-11-18 19:35:30,891 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 932 transitions. [2022-11-18 19:35:30,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 932 transitions. [2022-11-18 19:35:30,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:30,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 932 transitions. [2022-11-18 19:35:30,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 155.33333333333334) internal successors, (932), 6 states have internal predecessors, (932), 0 states have call successors, (0), 0 states 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 19:35:30,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:30,901 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 19:35:30,902 INFO L175 Difference]: Start difference. First operand has 213 places, 303 transitions, 1249 flow. Second operand 6 states and 932 transitions. [2022-11-18 19:35:30,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 518 transitions, 3143 flow [2022-11-18 19:35:30,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 518 transitions, 3125 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 19:35:30,937 INFO L231 Difference]: Finished difference. Result has 223 places, 433 transitions, 2589 flow [2022-11-18 19:35:30,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2589, PETRI_PLACES=223, PETRI_TRANSITIONS=433} [2022-11-18 19:35:30,942 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 18 predicate places. [2022-11-18 19:35:30,942 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 433 transitions, 2589 flow [2022-11-18 19:35:30,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:35:30,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:30,944 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] [2022-11-18 19:35:30,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:35:30,944 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:30,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:30,946 INFO L85 PathProgramCache]: Analyzing trace with hash 269629325, now seen corresponding path program 1 times [2022-11-18 19:35:30,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:30,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328469977] [2022-11-18 19:35:30,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:30,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:32,273 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 19:35:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:32,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328469977] [2022-11-18 19:35:32,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328469977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:32,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:32,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:35:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770054657] [2022-11-18 19:35:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:32,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:35:32,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:35:32,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:35:32,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:35:32,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 433 transitions, 2589 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:32,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:32,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:35:32,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:36,323 INFO L130 PetriNetUnfolder]: 1397/4558 cut-off events. [2022-11-18 19:35:36,323 INFO L131 PetriNetUnfolder]: For 4671/4748 co-relation queries the response was YES. [2022-11-18 19:35:36,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13191 conditions, 4558 events. 1397/4558 cut-off events. For 4671/4748 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 34497 event pairs, 190 based on Foata normal form. 34/4441 useless extension candidates. Maximal degree in co-relation 13096. Up to 1354 conditions per place. [2022-11-18 19:35:36,389 INFO L137 encePairwiseOnDemand]: 176/202 looper letters, 666 selfloop transitions, 104 changer transitions 6/874 dead transitions. [2022-11-18 19:35:36,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 874 transitions, 6751 flow [2022-11-18 19:35:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 19:35:36,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-18 19:35:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3447 transitions. [2022-11-18 19:35:36,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5884260839877091 [2022-11-18 19:35:36,402 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3447 transitions. [2022-11-18 19:35:36,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3447 transitions. [2022-11-18 19:35:36,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:36,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3447 transitions. [2022-11-18 19:35:36,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 118.86206896551724) internal successors, (3447), 29 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states 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 19:35:36,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 202.0) internal successors, (6060), 30 states have internal predecessors, (6060), 0 states have call successors, (0), 0 states 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 19:35:36,434 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 202.0) internal successors, (6060), 30 states have internal predecessors, (6060), 0 states have call successors, (0), 0 states 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 19:35:36,434 INFO L175 Difference]: Start difference. First operand has 223 places, 433 transitions, 2589 flow. Second operand 29 states and 3447 transitions. [2022-11-18 19:35:36,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 874 transitions, 6751 flow [2022-11-18 19:35:36,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 874 transitions, 6715 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-18 19:35:36,511 INFO L231 Difference]: Finished difference. Result has 258 places, 500 transitions, 3306 flow [2022-11-18 19:35:36,512 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=2553, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=3306, PETRI_PLACES=258, PETRI_TRANSITIONS=500} [2022-11-18 19:35:36,514 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 53 predicate places. [2022-11-18 19:35:36,514 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 500 transitions, 3306 flow [2022-11-18 19:35:36,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:36,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:36,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:35:36,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:35:36,517 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:36,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:36,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1793717209, now seen corresponding path program 2 times [2022-11-18 19:35:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:36,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542449984] [2022-11-18 19:35:36,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,764 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 19:35:37,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:37,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542449984] [2022-11-18 19:35:37,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542449984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:37,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:37,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:35:37,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488145411] [2022-11-18 19:35:37,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:35:37,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:37,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:35:37,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:35:37,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:35:37,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 500 transitions, 3306 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:37,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:37,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:35:37,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:43,499 INFO L130 PetriNetUnfolder]: 1850/6113 cut-off events. [2022-11-18 19:35:43,499 INFO L131 PetriNetUnfolder]: For 9625/9716 co-relation queries the response was YES. [2022-11-18 19:35:43,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19414 conditions, 6113 events. 1850/6113 cut-off events. For 9625/9716 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 51241 event pairs, 322 based on Foata normal form. 40/5980 useless extension candidates. Maximal degree in co-relation 19308. Up to 1510 conditions per place. [2022-11-18 19:35:43,598 INFO L137 encePairwiseOnDemand]: 165/202 looper letters, 657 selfloop transitions, 221 changer transitions 6/982 dead transitions. [2022-11-18 19:35:43,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 982 transitions, 8301 flow [2022-11-18 19:35:43,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:35:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:35:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2530 transitions. [2022-11-18 19:35:43,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6262376237623762 [2022-11-18 19:35:43,611 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2530 transitions. [2022-11-18 19:35:43,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2530 transitions. [2022-11-18 19:35:43,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:43,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2530 transitions. [2022-11-18 19:35:43,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 126.5) internal successors, (2530), 20 states have internal predecessors, (2530), 0 states have call successors, (0), 0 states 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 19:35:43,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 202.0) internal successors, (4242), 21 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states 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 19:35:43,636 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 202.0) internal successors, (4242), 21 states have internal predecessors, (4242), 0 states have call successors, (0), 0 states 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 19:35:43,636 INFO L175 Difference]: Start difference. First operand has 258 places, 500 transitions, 3306 flow. Second operand 20 states and 2530 transitions. [2022-11-18 19:35:43,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 982 transitions, 8301 flow [2022-11-18 19:35:43,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 982 transitions, 8297 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:35:43,754 INFO L231 Difference]: Finished difference. Result has 291 places, 597 transitions, 5209 flow [2022-11-18 19:35:43,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=3302, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5209, PETRI_PLACES=291, PETRI_TRANSITIONS=597} [2022-11-18 19:35:43,757 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 86 predicate places. [2022-11-18 19:35:43,758 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 597 transitions, 5209 flow [2022-11-18 19:35:43,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:43,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:43,760 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] [2022-11-18 19:35:43,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:35:43,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:43,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash -318785969, now seen corresponding path program 3 times [2022-11-18 19:35:43,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:43,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962276331] [2022-11-18 19:35:43,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:43,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:45,045 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 19:35:45,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:45,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962276331] [2022-11-18 19:35:45,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962276331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:45,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:45,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:35:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260302017] [2022-11-18 19:35:45,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:45,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:35:45,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:45,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:35:45,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:35:45,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:35:45,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 597 transitions, 5209 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:45,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:45,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:35:45,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:35:51,305 INFO L130 PetriNetUnfolder]: 2766/9128 cut-off events. [2022-11-18 19:35:51,305 INFO L131 PetriNetUnfolder]: For 22642/22798 co-relation queries the response was YES. [2022-11-18 19:35:51,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31866 conditions, 9128 events. 2766/9128 cut-off events. For 22642/22798 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 85703 event pairs, 413 based on Foata normal form. 69/8948 useless extension candidates. Maximal degree in co-relation 31808. Up to 1713 conditions per place. [2022-11-18 19:35:51,466 INFO L137 encePairwiseOnDemand]: 169/202 looper letters, 813 selfloop transitions, 309 changer transitions 4/1224 dead transitions. [2022-11-18 19:35:51,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 1224 transitions, 12823 flow [2022-11-18 19:35:51,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 19:35:51,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-18 19:35:51,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3280 transitions. [2022-11-18 19:35:51,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6013934726806014 [2022-11-18 19:35:51,477 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3280 transitions. [2022-11-18 19:35:51,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3280 transitions. [2022-11-18 19:35:51,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:51,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3280 transitions. [2022-11-18 19:35:51,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 121.48148148148148) internal successors, (3280), 27 states have internal predecessors, (3280), 0 states have call successors, (0), 0 states 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 19:35:51,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 202.0) internal successors, (5656), 28 states have internal predecessors, (5656), 0 states have call successors, (0), 0 states 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 19:35:51,505 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 202.0) internal successors, (5656), 28 states have internal predecessors, (5656), 0 states have call successors, (0), 0 states 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 19:35:51,506 INFO L175 Difference]: Start difference. First operand has 291 places, 597 transitions, 5209 flow. Second operand 27 states and 3280 transitions. [2022-11-18 19:35:51,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 1224 transitions, 12823 flow [2022-11-18 19:35:51,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 1224 transitions, 12791 flow, removed 14 selfloop flow, removed 2 redundant places. [2022-11-18 19:35:51,783 INFO L231 Difference]: Finished difference. Result has 325 places, 747 transitions, 8529 flow [2022-11-18 19:35:51,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=5195, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=8529, PETRI_PLACES=325, PETRI_TRANSITIONS=747} [2022-11-18 19:35:51,786 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 120 predicate places. [2022-11-18 19:35:51,786 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 747 transitions, 8529 flow [2022-11-18 19:35:51,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:51,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:35:51,788 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] [2022-11-18 19:35:51,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:35:51,789 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:35:51,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:51,790 INFO L85 PathProgramCache]: Analyzing trace with hash 56555767, now seen corresponding path program 4 times [2022-11-18 19:35:51,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:51,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469967209] [2022-11-18 19:35:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:51,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:53,097 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 19:35:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:53,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469967209] [2022-11-18 19:35:53,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469967209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:53,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:53,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:35:53,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667824964] [2022-11-18 19:35:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:53,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:35:53,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:35:53,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:35:53,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:35:53,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 747 transitions, 8529 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:35:53,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:35:53,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:35:53,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:00,404 INFO L130 PetriNetUnfolder]: 3850/12896 cut-off events. [2022-11-18 19:36:00,405 INFO L131 PetriNetUnfolder]: For 46535/46766 co-relation queries the response was YES. [2022-11-18 19:36:00,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47796 conditions, 12896 events. 3850/12896 cut-off events. For 46535/46766 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 133430 event pairs, 870 based on Foata normal form. 80/12632 useless extension candidates. Maximal degree in co-relation 47724. Up to 4077 conditions per place. [2022-11-18 19:36:00,601 INFO L137 encePairwiseOnDemand]: 170/202 looper letters, 700 selfloop transitions, 379 changer transitions 3/1180 dead transitions. [2022-11-18 19:36:00,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1180 transitions, 15091 flow [2022-11-18 19:36:00,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:36:00,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:36:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2503 transitions. [2022-11-18 19:36:00,608 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.59005186232909 [2022-11-18 19:36:00,609 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2503 transitions. [2022-11-18 19:36:00,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2503 transitions. [2022-11-18 19:36:00,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:00,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2503 transitions. [2022-11-18 19:36:00,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 119.19047619047619) internal successors, (2503), 21 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states 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 19:36:00,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states 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 19:36:00,632 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states 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 19:36:00,632 INFO L175 Difference]: Start difference. First operand has 325 places, 747 transitions, 8529 flow. Second operand 21 states and 2503 transitions. [2022-11-18 19:36:00,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1180 transitions, 15091 flow [2022-11-18 19:36:01,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1180 transitions, 14889 flow, removed 41 selfloop flow, removed 15 redundant places. [2022-11-18 19:36:01,310 INFO L231 Difference]: Finished difference. Result has 344 places, 899 transitions, 12382 flow [2022-11-18 19:36:01,311 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=8393, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=747, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12382, PETRI_PLACES=344, PETRI_TRANSITIONS=899} [2022-11-18 19:36:01,313 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 139 predicate places. [2022-11-18 19:36:01,314 INFO L495 AbstractCegarLoop]: Abstraction has has 344 places, 899 transitions, 12382 flow [2022-11-18 19:36:01,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:01,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:01,315 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:01,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:36:01,316 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:36:01,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:01,317 INFO L85 PathProgramCache]: Analyzing trace with hash 18448603, now seen corresponding path program 5 times [2022-11-18 19:36:01,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:01,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626311521] [2022-11-18 19:36:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:02,435 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 19:36:02,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:02,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626311521] [2022-11-18 19:36:02,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626311521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:02,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:02,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:36:02,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902267973] [2022-11-18 19:36:02,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:02,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:36:02,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:02,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:36:02,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:36:02,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:36:02,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 899 transitions, 12382 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:02,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:02,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:36:02,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:14,201 INFO L130 PetriNetUnfolder]: 5355/17989 cut-off events. [2022-11-18 19:36:14,201 INFO L131 PetriNetUnfolder]: For 84961/85356 co-relation queries the response was YES. [2022-11-18 19:36:14,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70042 conditions, 17989 events. 5355/17989 cut-off events. For 84961/85356 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 200604 event pairs, 901 based on Foata normal form. 170/17708 useless extension candidates. Maximal degree in co-relation 69956. Up to 3637 conditions per place. [2022-11-18 19:36:14,726 INFO L137 encePairwiseOnDemand]: 170/202 looper letters, 867 selfloop transitions, 592 changer transitions 4/1561 dead transitions. [2022-11-18 19:36:14,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 1561 transitions, 22722 flow [2022-11-18 19:36:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 19:36:14,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 19:36:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3382 transitions. [2022-11-18 19:36:14,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.597949080622348 [2022-11-18 19:36:14,734 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3382 transitions. [2022-11-18 19:36:14,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3382 transitions. [2022-11-18 19:36:14,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:14,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3382 transitions. [2022-11-18 19:36:14,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 120.78571428571429) internal successors, (3382), 28 states have internal predecessors, (3382), 0 states have call successors, (0), 0 states 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 19:36:14,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:36:14,757 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:36:14,758 INFO L175 Difference]: Start difference. First operand has 344 places, 899 transitions, 12382 flow. Second operand 28 states and 3382 transitions. [2022-11-18 19:36:14,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 1561 transitions, 22722 flow [2022-11-18 19:36:16,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1561 transitions, 22602 flow, removed 58 selfloop flow, removed 2 redundant places. [2022-11-18 19:36:16,034 INFO L231 Difference]: Finished difference. Result has 383 places, 1109 transitions, 18843 flow [2022-11-18 19:36:16,035 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=12328, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=18843, PETRI_PLACES=383, PETRI_TRANSITIONS=1109} [2022-11-18 19:36:16,035 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 178 predicate places. [2022-11-18 19:36:16,036 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 1109 transitions, 18843 flow [2022-11-18 19:36:16,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:16,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:16,037 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] [2022-11-18 19:36:16,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:36:16,037 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:36:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:16,038 INFO L85 PathProgramCache]: Analyzing trace with hash 699564247, now seen corresponding path program 1 times [2022-11-18 19:36:16,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:16,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706365370] [2022-11-18 19:36:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:16,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:17,019 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 19:36:17,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:17,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706365370] [2022-11-18 19:36:17,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706365370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:17,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:17,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:36:17,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453472041] [2022-11-18 19:36:17,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:17,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:36:17,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:17,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:36:17,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:36:17,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 202 [2022-11-18 19:36:17,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 1109 transitions, 18843 flow. Second operand has 13 states, 13 states have (on average 106.07692307692308) internal successors, (1379), 13 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 19:36:17,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:17,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 202 [2022-11-18 19:36:17,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:29,581 INFO L130 PetriNetUnfolder]: 5582/18461 cut-off events. [2022-11-18 19:36:29,581 INFO L131 PetriNetUnfolder]: For 119027/119378 co-relation queries the response was YES. [2022-11-18 19:36:29,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76544 conditions, 18461 events. 5582/18461 cut-off events. For 119027/119378 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 205632 event pairs, 1097 based on Foata normal form. 147/18135 useless extension candidates. Maximal degree in co-relation 76440. Up to 8855 conditions per place. [2022-11-18 19:36:29,946 INFO L137 encePairwiseOnDemand]: 182/202 looper letters, 947 selfloop transitions, 363 changer transitions 2/1407 dead transitions. [2022-11-18 19:36:29,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1407 transitions, 25212 flow [2022-11-18 19:36:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 19:36:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-18 19:36:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2751 transitions. [2022-11-18 19:36:29,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.567450495049505 [2022-11-18 19:36:29,958 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2751 transitions. [2022-11-18 19:36:29,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2751 transitions. [2022-11-18 19:36:29,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:29,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2751 transitions. [2022-11-18 19:36:29,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 114.625) internal successors, (2751), 24 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states 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 19:36:29,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 202.0) internal successors, (5050), 25 states have internal predecessors, (5050), 0 states have call successors, (0), 0 states 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 19:36:29,984 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 202.0) internal successors, (5050), 25 states have internal predecessors, (5050), 0 states have call successors, (0), 0 states 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 19:36:29,985 INFO L175 Difference]: Start difference. First operand has 383 places, 1109 transitions, 18843 flow. Second operand 24 states and 2751 transitions. [2022-11-18 19:36:29,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1407 transitions, 25212 flow [2022-11-18 19:36:31,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1407 transitions, 25017 flow, removed 59 selfloop flow, removed 12 redundant places. [2022-11-18 19:36:31,736 INFO L231 Difference]: Finished difference. Result has 399 places, 1181 transitions, 20823 flow [2022-11-18 19:36:31,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=18662, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=295, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=808, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=20823, PETRI_PLACES=399, PETRI_TRANSITIONS=1181} [2022-11-18 19:36:31,738 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 194 predicate places. [2022-11-18 19:36:31,738 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 1181 transitions, 20823 flow [2022-11-18 19:36:31,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 106.07692307692308) internal successors, (1379), 13 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 19:36:31,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:31,739 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] [2022-11-18 19:36:31,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:36:31,739 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:36:31,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:31,740 INFO L85 PathProgramCache]: Analyzing trace with hash 620921573, now seen corresponding path program 6 times [2022-11-18 19:36:31,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:31,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785468898] [2022-11-18 19:36:31,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:31,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:32,810 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 19:36:32,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:32,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785468898] [2022-11-18 19:36:32,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785468898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:32,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:32,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:36:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946139446] [2022-11-18 19:36:32,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:32,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:36:32,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:32,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:36:32,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:36:32,815 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:36:32,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 1181 transitions, 20823 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:32,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:32,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:36:32,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:36:49,217 INFO L130 PetriNetUnfolder]: 6735/22898 cut-off events. [2022-11-18 19:36:49,217 INFO L131 PetriNetUnfolder]: For 170467/171193 co-relation queries the response was YES. [2022-11-18 19:36:49,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100117 conditions, 22898 events. 6735/22898 cut-off events. For 170467/171193 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 270819 event pairs, 1347 based on Foata normal form. 324/22673 useless extension candidates. Maximal degree in co-relation 100003. Up to 4610 conditions per place. [2022-11-18 19:36:49,742 INFO L137 encePairwiseOnDemand]: 165/202 looper letters, 889 selfloop transitions, 768 changer transitions 6/1764 dead transitions. [2022-11-18 19:36:49,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1764 transitions, 31635 flow [2022-11-18 19:36:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:36:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:36:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2636 transitions. [2022-11-18 19:36:49,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6214049976426214 [2022-11-18 19:36:49,752 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2636 transitions. [2022-11-18 19:36:49,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2636 transitions. [2022-11-18 19:36:49,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:36:49,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2636 transitions. [2022-11-18 19:36:49,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 125.52380952380952) internal successors, (2636), 21 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states 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 19:36:49,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states 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 19:36:49,775 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states 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 19:36:49,775 INFO L175 Difference]: Start difference. First operand has 399 places, 1181 transitions, 20823 flow. Second operand 21 states and 2636 transitions. [2022-11-18 19:36:49,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1764 transitions, 31635 flow [2022-11-18 19:36:52,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1764 transitions, 31344 flow, removed 20 selfloop flow, removed 12 redundant places. [2022-11-18 19:36:52,806 INFO L231 Difference]: Finished difference. Result has 424 places, 1369 transitions, 28184 flow [2022-11-18 19:36:52,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=20652, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=582, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=28184, PETRI_PLACES=424, PETRI_TRANSITIONS=1369} [2022-11-18 19:36:52,808 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 219 predicate places. [2022-11-18 19:36:52,809 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 1369 transitions, 28184 flow [2022-11-18 19:36:52,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:52,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:36:52,810 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] [2022-11-18 19:36:52,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:36:52,810 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:36:52,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:52,811 INFO L85 PathProgramCache]: Analyzing trace with hash -178241337, now seen corresponding path program 7 times [2022-11-18 19:36:52,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:52,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895434822] [2022-11-18 19:36:52,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:52,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:53,820 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 19:36:53,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:53,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895434822] [2022-11-18 19:36:53,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895434822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:53,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:53,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:36:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331505626] [2022-11-18 19:36:53,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:53,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:36:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:36:53,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:36:53,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:36:53,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1369 transitions, 28184 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:36:53,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:36:53,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:36:53,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:14,146 INFO L130 PetriNetUnfolder]: 7201/24520 cut-off events. [2022-11-18 19:37:14,147 INFO L131 PetriNetUnfolder]: For 228320/229035 co-relation queries the response was YES. [2022-11-18 19:37:14,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113317 conditions, 24520 events. 7201/24520 cut-off events. For 228320/229035 co-relation queries the response was YES. Maximal size of possible extension queue 763. Compared 294596 event pairs, 1294 based on Foata normal form. 301/24244 useless extension candidates. Maximal degree in co-relation 113184. Up to 5498 conditions per place. [2022-11-18 19:37:14,779 INFO L137 encePairwiseOnDemand]: 169/202 looper letters, 974 selfloop transitions, 878 changer transitions 5/1958 dead transitions. [2022-11-18 19:37:14,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1958 transitions, 38734 flow [2022-11-18 19:37:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 19:37:14,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 19:37:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3403 transitions. [2022-11-18 19:37:14,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6016619519094767 [2022-11-18 19:37:14,792 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3403 transitions. [2022-11-18 19:37:14,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3403 transitions. [2022-11-18 19:37:14,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:14,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3403 transitions. [2022-11-18 19:37:14,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 121.53571428571429) internal successors, (3403), 28 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states 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 19:37:14,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:37:14,821 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:37:14,822 INFO L175 Difference]: Start difference. First operand has 424 places, 1369 transitions, 28184 flow. Second operand 28 states and 3403 transitions. [2022-11-18 19:37:14,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1958 transitions, 38734 flow [2022-11-18 19:37:19,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 1958 transitions, 38625 flow, removed 27 selfloop flow, removed 3 redundant places. [2022-11-18 19:37:19,624 INFO L231 Difference]: Finished difference. Result has 459 places, 1478 transitions, 34265 flow [2022-11-18 19:37:19,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=28094, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=769, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=34265, PETRI_PLACES=459, PETRI_TRANSITIONS=1478} [2022-11-18 19:37:19,626 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 254 predicate places. [2022-11-18 19:37:19,627 INFO L495 AbstractCegarLoop]: Abstraction has has 459 places, 1478 transitions, 34265 flow [2022-11-18 19:37:19,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:37:19,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:19,628 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] [2022-11-18 19:37:19,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:37:19,629 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:37:19,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:19,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1857464493, now seen corresponding path program 8 times [2022-11-18 19:37:19,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:19,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089885634] [2022-11-18 19:37:19,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:19,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,518 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 19:37:20,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:20,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089885634] [2022-11-18 19:37:20,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089885634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:20,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:20,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:37:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005807516] [2022-11-18 19:37:20,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:20,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:37:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:20,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:37:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:37:20,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:37:20,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 1478 transitions, 34265 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:37:20,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:20,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:37:20,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:37:44,183 INFO L130 PetriNetUnfolder]: 7627/26072 cut-off events. [2022-11-18 19:37:44,183 INFO L131 PetriNetUnfolder]: For 300939/301704 co-relation queries the response was YES. [2022-11-18 19:37:44,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126324 conditions, 26072 events. 7627/26072 cut-off events. For 300939/301704 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 317623 event pairs, 1413 based on Foata normal form. 347/25808 useless extension candidates. Maximal degree in co-relation 126183. Up to 5407 conditions per place. [2022-11-18 19:37:44,906 INFO L137 encePairwiseOnDemand]: 169/202 looper letters, 945 selfloop transitions, 965 changer transitions 6/2017 dead transitions. [2022-11-18 19:37:44,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 2017 transitions, 44285 flow [2022-11-18 19:37:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 19:37:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-18 19:37:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3403 transitions. [2022-11-18 19:37:44,916 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6016619519094767 [2022-11-18 19:37:44,917 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3403 transitions. [2022-11-18 19:37:44,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3403 transitions. [2022-11-18 19:37:44,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:37:44,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3403 transitions. [2022-11-18 19:37:44,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 121.53571428571429) internal successors, (3403), 28 states have internal predecessors, (3403), 0 states have call successors, (0), 0 states 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 19:37:44,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:37:44,944 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 202.0) internal successors, (5858), 29 states have internal predecessors, (5858), 0 states have call successors, (0), 0 states 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 19:37:44,944 INFO L175 Difference]: Start difference. First operand has 459 places, 1478 transitions, 34265 flow. Second operand 28 states and 3403 transitions. [2022-11-18 19:37:44,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 2017 transitions, 44285 flow [2022-11-18 19:37:51,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 2017 transitions, 44099 flow, removed 21 selfloop flow, removed 14 redundant places. [2022-11-18 19:37:51,727 INFO L231 Difference]: Finished difference. Result has 483 places, 1572 transitions, 40465 flow [2022-11-18 19:37:51,729 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=34085, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=871, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=40465, PETRI_PLACES=483, PETRI_TRANSITIONS=1572} [2022-11-18 19:37:51,730 INFO L288 CegarLoopForPetriNet]: 205 programPoint places, 278 predicate places. [2022-11-18 19:37:51,730 INFO L495 AbstractCegarLoop]: Abstraction has has 483 places, 1572 transitions, 40465 flow [2022-11-18 19:37:51,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:37:51,731 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:37:51,731 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] [2022-11-18 19:37:51,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:37:51,732 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-18 19:37:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:51,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2020785595, now seen corresponding path program 9 times [2022-11-18 19:37:51,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:51,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899000053] [2022-11-18 19:37:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:51,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:52,642 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 19:37:52,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:52,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899000053] [2022-11-18 19:37:52,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899000053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:52,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:52,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 19:37:52,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765241689] [2022-11-18 19:37:52,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:52,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:37:52,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:52,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:37:52,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:37:52,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 202 [2022-11-18 19:37:52,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1572 transitions, 40465 flow. Second operand has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states 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 19:37:52,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:37:52,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 202 [2022-11-18 19:37:52,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand