./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:51:39,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:51:39,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:51:39,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:51:39,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:51:39,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:51:39,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:51:39,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:51:39,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:51:39,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:51:39,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:51:39,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:51:39,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:51:39,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:51:39,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:51:39,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:51:39,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:51:39,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:51:39,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:51:39,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:51:39,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:51:39,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:51:39,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:51:39,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:51:39,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:51:39,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:51:39,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:51:39,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:51:39,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:51:39,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:51:39,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:51:39,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:51:39,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:51:39,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:51:39,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:51:39,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:51:39,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:51:39,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:51:39,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:51:39,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:51:39,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:51:39,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:51:39,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:51:39,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:51:39,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:51:39,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:51:39,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:51:39,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:51:39,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:51:39,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:51:39,513 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:51:39,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:51:39,514 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:51:39,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:51:39,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:51:39,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:51:39,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:51:39,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:51:39,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:51:39,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:51:39,516 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:51:39,517 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:51:39,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:51:39,517 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:51:39,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:51:39,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:51:39,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:51:39,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:51:39,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:39,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:51:39,520 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:51:39,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:51:39,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:51:39,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:51:39,521 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:51:39,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:51:39,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:51:39,522 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_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2022-11-02 20:51:39,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:51:39,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:51:39,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:51:39,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:51:39,847 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:51:39,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-02 20:51:39,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/data/02eeee2a9/f0e572c0d2444d7b8f78c02d88366b61/FLAG2c8cb7ce7 [2022-11-02 20:51:40,580 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:51:40,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2022-11-02 20:51:40,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/data/02eeee2a9/f0e572c0d2444d7b8f78c02d88366b61/FLAG2c8cb7ce7 [2022-11-02 20:51:40,771 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/data/02eeee2a9/f0e572c0d2444d7b8f78c02d88366b61 [2022-11-02 20:51:40,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:51:40,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:51:40,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:40,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:51:40,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:51:40,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:40" (1/1) ... [2022-11-02 20:51:40,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b54b86d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:40, skipping insertion in model container [2022-11-02 20:51:40,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:40" (1/1) ... [2022-11-02 20:51:40,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:51:40,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:51:41,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:41,410 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:51:41,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:51:41,498 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:51:41,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41 WrapperNode [2022-11-02 20:51:41,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:51:41,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:41,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:51:41,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:51:41,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,580 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-02 20:51:41,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:51:41,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:51:41,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:51:41,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:51:41,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,633 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:51:41,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:51:41,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:51:41,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:51:41,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (1/1) ... [2022-11-02 20:51:41,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:51:41,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:41,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:51:41,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:51:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:51:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:51:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:51:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:51:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:51:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:51:41,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:51:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:51:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:51:41,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:51:41,725 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:51:41,915 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:51:41,917 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:51:42,087 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:51:42,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:51:42,094 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:51:42,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:51:42 BoogieIcfgContainer [2022-11-02 20:51:42,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:51:42,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:51:42,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:51:42,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:51:42,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:51:40" (1/3) ... [2022-11-02 20:51:42,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322108e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:51:42, skipping insertion in model container [2022-11-02 20:51:42,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:41" (2/3) ... [2022-11-02 20:51:42,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@322108e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:51:42, skipping insertion in model container [2022-11-02 20:51:42,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:51:42" (3/3) ... [2022-11-02 20:51:42,105 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2022-11-02 20:51:42,113 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:51:42,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:51:42,124 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:51:42,124 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:51:42,200 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:51:42,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 173 flow [2022-11-02 20:51:42,331 INFO L130 PetriNetUnfolder]: 1/83 cut-off events. [2022-11-02 20:51:42,331 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:51:42,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 83 events. 1/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2022-11-02 20:51:42,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 84 transitions, 173 flow [2022-11-02 20:51:42,342 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 83 transitions, 169 flow [2022-11-02 20:51:42,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:51:42,372 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;@e5086b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:51:42,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 20:51:42,408 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2022-11-02 20:51:42,409 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:51:42,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:42,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:42,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:42,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:42,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1076326687, now seen corresponding path program 1 times [2022-11-02 20:51:42,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:42,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526029888] [2022-11-02 20:51:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:42,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:43,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526029888] [2022-11-02 20:51:43,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526029888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:43,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:43,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:43,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404689120] [2022-11-02 20:51:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:43,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:43,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:43,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:43,579 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 84 [2022-11-02 20:51:43,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:43,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 84 [2022-11-02 20:51:43,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:43,885 INFO L130 PetriNetUnfolder]: 91/363 cut-off events. [2022-11-02 20:51:43,885 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:51:43,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 363 events. 91/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1524 event pairs, 32 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 522. Up to 162 conditions per place. [2022-11-02 20:51:43,890 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 30 selfloop transitions, 22 changer transitions 4/112 dead transitions. [2022-11-02 20:51:43,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 112 transitions, 339 flow [2022-11-02 20:51:43,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:43,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2022-11-02 20:51:43,906 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-02 20:51:43,907 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 399 transitions. [2022-11-02 20:51:43,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 399 transitions. [2022-11-02 20:51:43,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:43,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 399 transitions. [2022-11-02 20:51:43,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,931 INFO L175 Difference]: Start difference. First operand has 86 places, 83 transitions, 169 flow. Second operand 6 states and 399 transitions. [2022-11-02 20:51:43,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 112 transitions, 339 flow [2022-11-02 20:51:43,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 112 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:51:43,940 INFO L231 Difference]: Finished difference. Result has 95 places, 104 transitions, 318 flow [2022-11-02 20:51:43,942 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=95, PETRI_TRANSITIONS=104} [2022-11-02 20:51:43,946 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 9 predicate places. [2022-11-02 20:51:43,946 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 104 transitions, 318 flow [2022-11-02 20:51:43,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:43,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:43,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:51:43,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:43,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1327139528, now seen corresponding path program 1 times [2022-11-02 20:51:43,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:43,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363272062] [2022-11-02 20:51:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:43,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:44,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:44,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:44,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363272062] [2022-11-02 20:51:44,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363272062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:44,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:44,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:44,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415747261] [2022-11-02 20:51:44,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:44,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:44,508 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 84 [2022-11-02 20:51:44,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 104 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:44,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 84 [2022-11-02 20:51:44,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:44,812 INFO L130 PetriNetUnfolder]: 124/434 cut-off events. [2022-11-02 20:51:44,812 INFO L131 PetriNetUnfolder]: For 143/143 co-relation queries the response was YES. [2022-11-02 20:51:44,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 434 events. 124/434 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1974 event pairs, 27 based on Foata normal form. 0/422 useless extension candidates. Maximal degree in co-relation 967. Up to 203 conditions per place. [2022-11-02 20:51:44,827 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 37 selfloop transitions, 26 changer transitions 11/140 dead transitions. [2022-11-02 20:51:44,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 140 transitions, 634 flow [2022-11-02 20:51:44,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2022-11-02 20:51:44,834 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-11-02 20:51:44,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2022-11-02 20:51:44,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2022-11-02 20:51:44,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:44,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2022-11-02 20:51:44,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,843 INFO L175 Difference]: Start difference. First operand has 95 places, 104 transitions, 318 flow. Second operand 6 states and 444 transitions. [2022-11-02 20:51:44,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 140 transitions, 634 flow [2022-11-02 20:51:44,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 140 transitions, 634 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:44,856 INFO L231 Difference]: Finished difference. Result has 105 places, 125 transitions, 542 flow [2022-11-02 20:51:44,856 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=542, PETRI_PLACES=105, PETRI_TRANSITIONS=125} [2022-11-02 20:51:44,857 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 19 predicate places. [2022-11-02 20:51:44,858 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 125 transitions, 542 flow [2022-11-02 20:51:44,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.66666666666667) internal successors, (406), 6 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:44,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:44,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:51:44,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:44,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:44,861 INFO L85 PathProgramCache]: Analyzing trace with hash 795657530, now seen corresponding path program 1 times [2022-11-02 20:51:44,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:44,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565167590] [2022-11-02 20:51:44,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:44,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:45,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:45,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565167590] [2022-11-02 20:51:45,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565167590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:45,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:45,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:45,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264440576] [2022-11-02 20:51:45,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:45,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:45,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:45,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:45,589 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:45,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 125 transitions, 542 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:45,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:45,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:45,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:46,686 INFO L130 PetriNetUnfolder]: 420/1308 cut-off events. [2022-11-02 20:51:46,686 INFO L131 PetriNetUnfolder]: For 1002/1004 co-relation queries the response was YES. [2022-11-02 20:51:46,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3916 conditions, 1308 events. 420/1308 cut-off events. For 1002/1004 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8665 event pairs, 79 based on Foata normal form. 11/1314 useless extension candidates. Maximal degree in co-relation 2332. Up to 340 conditions per place. [2022-11-02 20:51:46,697 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 180 selfloop transitions, 53 changer transitions 31/303 dead transitions. [2022-11-02 20:51:46,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 303 transitions, 2168 flow [2022-11-02 20:51:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-02 20:51:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-02 20:51:46,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 737 transitions. [2022-11-02 20:51:46,700 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.584920634920635 [2022-11-02 20:51:46,700 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 737 transitions. [2022-11-02 20:51:46,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 737 transitions. [2022-11-02 20:51:46,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:46,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 737 transitions. [2022-11-02 20:51:46,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 49.13333333333333) internal successors, (737), 15 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,707 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,707 INFO L175 Difference]: Start difference. First operand has 105 places, 125 transitions, 542 flow. Second operand 15 states and 737 transitions. [2022-11-02 20:51:46,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 303 transitions, 2168 flow [2022-11-02 20:51:46,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 303 transitions, 2114 flow, removed 27 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:46,761 INFO L231 Difference]: Finished difference. Result has 130 places, 176 transitions, 1175 flow [2022-11-02 20:51:46,762 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1175, PETRI_PLACES=130, PETRI_TRANSITIONS=176} [2022-11-02 20:51:46,762 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2022-11-02 20:51:46,763 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 176 transitions, 1175 flow [2022-11-02 20:51:46,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:46,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:46,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:51:46,764 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:46,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1460417460, now seen corresponding path program 2 times [2022-11-02 20:51:46,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:46,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279339068] [2022-11-02 20:51:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:46,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:47,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279339068] [2022-11-02 20:51:47,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279339068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:47,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:47,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:47,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653541587] [2022-11-02 20:51:47,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:47,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:47,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:47,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:47,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:47,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:47,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 176 transitions, 1175 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:47,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:47,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:47,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:48,333 INFO L130 PetriNetUnfolder]: 392/1281 cut-off events. [2022-11-02 20:51:48,333 INFO L131 PetriNetUnfolder]: For 2042/2049 co-relation queries the response was YES. [2022-11-02 20:51:48,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4442 conditions, 1281 events. 392/1281 cut-off events. For 2042/2049 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 8643 event pairs, 118 based on Foata normal form. 9/1285 useless extension candidates. Maximal degree in co-relation 3769. Up to 354 conditions per place. [2022-11-02 20:51:48,346 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 151 selfloop transitions, 52 changer transitions 22/264 dead transitions. [2022-11-02 20:51:48,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 264 transitions, 2157 flow [2022-11-02 20:51:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:51:48,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:51:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 642 transitions. [2022-11-02 20:51:48,349 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5879120879120879 [2022-11-02 20:51:48,349 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 642 transitions. [2022-11-02 20:51:48,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 642 transitions. [2022-11-02 20:51:48,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:48,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 642 transitions. [2022-11-02 20:51:48,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 49.38461538461539) internal successors, (642), 13 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:48,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:48,354 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:48,354 INFO L175 Difference]: Start difference. First operand has 130 places, 176 transitions, 1175 flow. Second operand 13 states and 642 transitions. [2022-11-02 20:51:48,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 264 transitions, 2157 flow [2022-11-02 20:51:48,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 264 transitions, 2142 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-11-02 20:51:48,389 INFO L231 Difference]: Finished difference. Result has 145 places, 184 transitions, 1465 flow [2022-11-02 20:51:48,390 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1465, PETRI_PLACES=145, PETRI_TRANSITIONS=184} [2022-11-02 20:51:48,391 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 59 predicate places. [2022-11-02 20:51:48,391 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 184 transitions, 1465 flow [2022-11-02 20:51:48,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:48,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:48,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:48,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:51:48,397 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:48,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash -453347123, now seen corresponding path program 1 times [2022-11-02 20:51:48,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:48,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067267999] [2022-11-02 20:51:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:48,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:48,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:48,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067267999] [2022-11-02 20:51:48,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067267999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:48,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:48,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:51:48,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917818987] [2022-11-02 20:51:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:48,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:51:48,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:48,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:51:48,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:51:48,778 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 84 [2022-11-02 20:51:48,779 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 184 transitions, 1465 flow. Second operand has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:48,779 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:48,779 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 84 [2022-11-02 20:51:48,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:49,096 INFO L130 PetriNetUnfolder]: 145/710 cut-off events. [2022-11-02 20:51:49,096 INFO L131 PetriNetUnfolder]: For 2148/2193 co-relation queries the response was YES. [2022-11-02 20:51:49,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 710 events. 145/710 cut-off events. For 2148/2193 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4395 event pairs, 8 based on Foata normal form. 22/725 useless extension candidates. Maximal degree in co-relation 2348. Up to 158 conditions per place. [2022-11-02 20:51:49,104 INFO L137 encePairwiseOnDemand]: 77/84 looper letters, 62 selfloop transitions, 4 changer transitions 29/184 dead transitions. [2022-11-02 20:51:49,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 184 transitions, 1559 flow [2022-11-02 20:51:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:51:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-02 20:51:49,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 445 transitions. [2022-11-02 20:51:49,107 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7568027210884354 [2022-11-02 20:51:49,107 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 445 transitions. [2022-11-02 20:51:49,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 445 transitions. [2022-11-02 20:51:49,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:49,108 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 445 transitions. [2022-11-02 20:51:49,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 63.57142857142857) internal successors, (445), 7 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,111 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,112 INFO L175 Difference]: Start difference. First operand has 145 places, 184 transitions, 1465 flow. Second operand 7 states and 445 transitions. [2022-11-02 20:51:49,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 184 transitions, 1559 flow [2022-11-02 20:51:49,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 184 transitions, 1513 flow, removed 5 selfloop flow, removed 9 redundant places. [2022-11-02 20:51:49,135 INFO L231 Difference]: Finished difference. Result has 143 places, 150 transitions, 1109 flow [2022-11-02 20:51:49,136 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1109, PETRI_PLACES=143, PETRI_TRANSITIONS=150} [2022-11-02 20:51:49,136 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 57 predicate places. [2022-11-02 20:51:49,137 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 150 transitions, 1109 flow [2022-11-02 20:51:49,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:49,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:49,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:51:49,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:49,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash -591326818, now seen corresponding path program 3 times [2022-11-02 20:51:49,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:49,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467942278] [2022-11-02 20:51:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:49,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:49,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467942278] [2022-11-02 20:51:49,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467942278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:49,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:49,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:49,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204075154] [2022-11-02 20:51:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:49,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:49,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:49,679 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:49,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 150 transitions, 1109 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:49,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:49,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:49,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:50,374 INFO L130 PetriNetUnfolder]: 239/791 cut-off events. [2022-11-02 20:51:50,375 INFO L131 PetriNetUnfolder]: For 2341/2341 co-relation queries the response was YES. [2022-11-02 20:51:50,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3175 conditions, 791 events. 239/791 cut-off events. For 2341/2341 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4513 event pairs, 59 based on Foata normal form. 5/794 useless extension candidates. Maximal degree in co-relation 3084. Up to 357 conditions per place. [2022-11-02 20:51:50,384 INFO L137 encePairwiseOnDemand]: 67/84 looper letters, 87 selfloop transitions, 52 changer transitions 15/192 dead transitions. [2022-11-02 20:51:50,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 192 transitions, 1742 flow [2022-11-02 20:51:50,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:51:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:51:50,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 603 transitions. [2022-11-02 20:51:50,387 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5521978021978022 [2022-11-02 20:51:50,387 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 603 transitions. [2022-11-02 20:51:50,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 603 transitions. [2022-11-02 20:51:50,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:50,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 603 transitions. [2022-11-02 20:51:50,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.38461538461539) internal successors, (603), 13 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:50,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:50,398 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:50,398 INFO L175 Difference]: Start difference. First operand has 143 places, 150 transitions, 1109 flow. Second operand 13 states and 603 transitions. [2022-11-02 20:51:50,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 192 transitions, 1742 flow [2022-11-02 20:51:50,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 192 transitions, 1542 flow, removed 3 selfloop flow, removed 18 redundant places. [2022-11-02 20:51:50,449 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 1225 flow [2022-11-02 20:51:50,450 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1225, PETRI_PLACES=138, PETRI_TRANSITIONS=160} [2022-11-02 20:51:50,453 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 52 predicate places. [2022-11-02 20:51:50,453 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 1225 flow [2022-11-02 20:51:50,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:50,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:50,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:50,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:51:50,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:50,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1692503940, now seen corresponding path program 4 times [2022-11-02 20:51:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:50,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981862019] [2022-11-02 20:51:50,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:50,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:51,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:51,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981862019] [2022-11-02 20:51:51,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981862019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:51,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:51,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:51,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762464057] [2022-11-02 20:51:51,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:51,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:51,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:51,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:51,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:51,007 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:51,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 160 transitions, 1225 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:51,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:51,703 INFO L130 PetriNetUnfolder]: 279/870 cut-off events. [2022-11-02 20:51:51,704 INFO L131 PetriNetUnfolder]: For 2767/2767 co-relation queries the response was YES. [2022-11-02 20:51:51,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3532 conditions, 870 events. 279/870 cut-off events. For 2767/2767 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5059 event pairs, 26 based on Foata normal form. 11/879 useless extension candidates. Maximal degree in co-relation 3434. Up to 337 conditions per place. [2022-11-02 20:51:51,713 INFO L137 encePairwiseOnDemand]: 71/84 looper letters, 146 selfloop transitions, 38 changer transitions 20/242 dead transitions. [2022-11-02 20:51:51,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 242 transitions, 2264 flow [2022-11-02 20:51:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:51:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:51:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 602 transitions. [2022-11-02 20:51:51,716 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2022-11-02 20:51:51,716 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 602 transitions. [2022-11-02 20:51:51,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 602 transitions. [2022-11-02 20:51:51,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:51,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 602 transitions. [2022-11-02 20:51:51,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 46.30769230769231) internal successors, (602), 13 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,721 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,721 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 1225 flow. Second operand 13 states and 602 transitions. [2022-11-02 20:51:51,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 242 transitions, 2264 flow [2022-11-02 20:51:51,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 242 transitions, 2178 flow, removed 14 selfloop flow, removed 6 redundant places. [2022-11-02 20:51:51,747 INFO L231 Difference]: Finished difference. Result has 149 places, 180 transitions, 1523 flow [2022-11-02 20:51:51,748 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1523, PETRI_PLACES=149, PETRI_TRANSITIONS=180} [2022-11-02 20:51:51,749 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 63 predicate places. [2022-11-02 20:51:51,749 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 180 transitions, 1523 flow [2022-11-02 20:51:51,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:51,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:51,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:51,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:51:51,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:51,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:51,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1830706470, now seen corresponding path program 1 times [2022-11-02 20:51:51,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:51,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607664022] [2022-11-02 20:51:51,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:51,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:52,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:52,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607664022] [2022-11-02 20:51:52,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607664022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:52,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:52,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:52,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797652583] [2022-11-02 20:51:52,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:52,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:52,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:52,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:52,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:52,202 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:52,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 180 transitions, 1523 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:52,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:52,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:52,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:52,960 INFO L130 PetriNetUnfolder]: 268/859 cut-off events. [2022-11-02 20:51:52,960 INFO L131 PetriNetUnfolder]: For 3622/3622 co-relation queries the response was YES. [2022-11-02 20:51:52,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 859 events. 268/859 cut-off events. For 3622/3622 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5010 event pairs, 32 based on Foata normal form. 21/878 useless extension candidates. Maximal degree in co-relation 3639. Up to 183 conditions per place. [2022-11-02 20:51:52,971 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 71 selfloop transitions, 29 changer transitions 128/262 dead transitions. [2022-11-02 20:51:52,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 262 transitions, 2876 flow [2022-11-02 20:51:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:52,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:51:52,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 560 transitions. [2022-11-02 20:51:52,974 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-11-02 20:51:52,975 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 560 transitions. [2022-11-02 20:51:52,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 560 transitions. [2022-11-02 20:51:52,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:52,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 560 transitions. [2022-11-02 20:51:52,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 46.666666666666664) internal successors, (560), 12 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:52,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:52,980 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:52,980 INFO L175 Difference]: Start difference. First operand has 149 places, 180 transitions, 1523 flow. Second operand 12 states and 560 transitions. [2022-11-02 20:51:52,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 262 transitions, 2876 flow [2022-11-02 20:51:53,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 262 transitions, 2751 flow, removed 39 selfloop flow, removed 7 redundant places. [2022-11-02 20:51:53,014 INFO L231 Difference]: Finished difference. Result has 151 places, 114 transitions, 751 flow [2022-11-02 20:51:53,014 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=751, PETRI_PLACES=151, PETRI_TRANSITIONS=114} [2022-11-02 20:51:53,015 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 65 predicate places. [2022-11-02 20:51:53,015 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 114 transitions, 751 flow [2022-11-02 20:51:53,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:53,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:53,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:51:53,017 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:53,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1882175256, now seen corresponding path program 5 times [2022-11-02 20:51:53,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:53,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679942172] [2022-11-02 20:51:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:53,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:53,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:53,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679942172] [2022-11-02 20:51:53,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679942172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:53,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:53,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:53,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308220452] [2022-11-02 20:51:53,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:53,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:53,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:53,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:53,534 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:53,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 114 transitions, 751 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:53,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:53,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:54,106 INFO L130 PetriNetUnfolder]: 117/462 cut-off events. [2022-11-02 20:51:54,107 INFO L131 PetriNetUnfolder]: For 1655/1655 co-relation queries the response was YES. [2022-11-02 20:51:54,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1862 conditions, 462 events. 117/462 cut-off events. For 1655/1655 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2122 event pairs, 19 based on Foata normal form. 10/470 useless extension candidates. Maximal degree in co-relation 1759. Up to 152 conditions per place. [2022-11-02 20:51:54,112 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 89 selfloop transitions, 8 changer transitions 51/184 dead transitions. [2022-11-02 20:51:54,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 184 transitions, 1653 flow [2022-11-02 20:51:54,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:51:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 550 transitions. [2022-11-02 20:51:54,115 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5456349206349206 [2022-11-02 20:51:54,116 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 550 transitions. [2022-11-02 20:51:54,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 550 transitions. [2022-11-02 20:51:54,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:54,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 550 transitions. [2022-11-02 20:51:54,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.833333333333336) internal successors, (550), 12 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:54,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:54,121 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:54,121 INFO L175 Difference]: Start difference. First operand has 151 places, 114 transitions, 751 flow. Second operand 12 states and 550 transitions. [2022-11-02 20:51:54,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 184 transitions, 1653 flow [2022-11-02 20:51:54,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 184 transitions, 1258 flow, removed 124 selfloop flow, removed 22 redundant places. [2022-11-02 20:51:54,138 INFO L231 Difference]: Finished difference. Result has 133 places, 110 transitions, 570 flow [2022-11-02 20:51:54,138 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=570, PETRI_PLACES=133, PETRI_TRANSITIONS=110} [2022-11-02 20:51:54,139 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 47 predicate places. [2022-11-02 20:51:54,139 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 110 transitions, 570 flow [2022-11-02 20:51:54,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:54,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:54,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:54,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:51:54,141 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:54,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:54,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1626181512, now seen corresponding path program 6 times [2022-11-02 20:51:54,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:54,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774362000] [2022-11-02 20:51:54,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:54,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:54,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:54,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774362000] [2022-11-02 20:51:54,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774362000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:54,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:54,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:54,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820084010] [2022-11-02 20:51:54,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:54,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:54,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:54,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:54,697 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:54,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 110 transitions, 570 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:54,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:54,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:54,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:55,198 INFO L130 PetriNetUnfolder]: 85/366 cut-off events. [2022-11-02 20:51:55,198 INFO L131 PetriNetUnfolder]: For 781/781 co-relation queries the response was YES. [2022-11-02 20:51:55,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1200 conditions, 366 events. 85/366 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1462 event pairs, 19 based on Foata normal form. 5/369 useless extension candidates. Maximal degree in co-relation 1102. Up to 190 conditions per place. [2022-11-02 20:51:55,202 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 73 selfloop transitions, 12 changer transitions 11/132 dead transitions. [2022-11-02 20:51:55,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 132 transitions, 889 flow [2022-11-02 20:51:55,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:51:55,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 537 transitions. [2022-11-02 20:51:55,205 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5327380952380952 [2022-11-02 20:51:55,205 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 537 transitions. [2022-11-02 20:51:55,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 537 transitions. [2022-11-02 20:51:55,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:55,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 537 transitions. [2022-11-02 20:51:55,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.75) internal successors, (537), 12 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,213 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,213 INFO L175 Difference]: Start difference. First operand has 133 places, 110 transitions, 570 flow. Second operand 12 states and 537 transitions. [2022-11-02 20:51:55,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 132 transitions, 889 flow [2022-11-02 20:51:55,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 132 transitions, 807 flow, removed 31 selfloop flow, removed 11 redundant places. [2022-11-02 20:51:55,221 INFO L231 Difference]: Finished difference. Result has 134 places, 112 transitions, 560 flow [2022-11-02 20:51:55,222 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=560, PETRI_PLACES=134, PETRI_TRANSITIONS=112} [2022-11-02 20:51:55,223 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 48 predicate places. [2022-11-02 20:51:55,223 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 112 transitions, 560 flow [2022-11-02 20:51:55,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:55,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:55,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:51:55,224 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:55,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:55,225 INFO L85 PathProgramCache]: Analyzing trace with hash -751455672, now seen corresponding path program 7 times [2022-11-02 20:51:55,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:55,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314164622] [2022-11-02 20:51:55,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:55,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:55,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:55,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314164622] [2022-11-02 20:51:55,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314164622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:55,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:55,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731909274] [2022-11-02 20:51:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:55,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:55,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:55,753 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:55,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 112 transitions, 560 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:55,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:55,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:55,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:56,260 INFO L130 PetriNetUnfolder]: 77/322 cut-off events. [2022-11-02 20:51:56,260 INFO L131 PetriNetUnfolder]: For 620/620 co-relation queries the response was YES. [2022-11-02 20:51:56,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 322 events. 77/322 cut-off events. For 620/620 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1157 event pairs, 15 based on Foata normal form. 10/330 useless extension candidates. Maximal degree in co-relation 950. Up to 152 conditions per place. [2022-11-02 20:51:56,263 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 64 selfloop transitions, 5 changer transitions 38/143 dead transitions. [2022-11-02 20:51:56,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 143 transitions, 934 flow [2022-11-02 20:51:56,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:51:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:51:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 578 transitions. [2022-11-02 20:51:56,267 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5293040293040293 [2022-11-02 20:51:56,268 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 578 transitions. [2022-11-02 20:51:56,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 578 transitions. [2022-11-02 20:51:56,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:56,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 578 transitions. [2022-11-02 20:51:56,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 44.46153846153846) internal successors, (578), 13 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,274 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,274 INFO L175 Difference]: Start difference. First operand has 134 places, 112 transitions, 560 flow. Second operand 13 states and 578 transitions. [2022-11-02 20:51:56,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 143 transitions, 934 flow [2022-11-02 20:51:56,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 143 transitions, 904 flow, removed 5 selfloop flow, removed 9 redundant places. [2022-11-02 20:51:56,283 INFO L231 Difference]: Finished difference. Result has 138 places, 104 transitions, 464 flow [2022-11-02 20:51:56,283 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=464, PETRI_PLACES=138, PETRI_TRANSITIONS=104} [2022-11-02 20:51:56,284 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 52 predicate places. [2022-11-02 20:51:56,284 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 104 transitions, 464 flow [2022-11-02 20:51:56,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:56,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:56,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:51:56,286 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:56,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:56,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1671381338, now seen corresponding path program 8 times [2022-11-02 20:51:56,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:56,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982968] [2022-11-02 20:51:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:56,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:56,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982968] [2022-11-02 20:51:56,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:56,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:56,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:56,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947852234] [2022-11-02 20:51:56,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:56,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:56,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:56,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:56,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:56,946 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:56,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 104 transitions, 464 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:56,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:56,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:57,623 INFO L130 PetriNetUnfolder]: 62/280 cut-off events. [2022-11-02 20:51:57,624 INFO L131 PetriNetUnfolder]: For 511/517 co-relation queries the response was YES. [2022-11-02 20:51:57,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 280 events. 62/280 cut-off events. For 511/517 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 945 event pairs, 4 based on Foata normal form. 16/296 useless extension candidates. Maximal degree in co-relation 872. Up to 86 conditions per place. [2022-11-02 20:51:57,627 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 60 selfloop transitions, 18 changer transitions 28/142 dead transitions. [2022-11-02 20:51:57,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 142 transitions, 905 flow [2022-11-02 20:51:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-02 20:51:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-02 20:51:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 622 transitions. [2022-11-02 20:51:57,630 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5289115646258503 [2022-11-02 20:51:57,630 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 622 transitions. [2022-11-02 20:51:57,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 622 transitions. [2022-11-02 20:51:57,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:57,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 622 transitions. [2022-11-02 20:51:57,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 44.42857142857143) internal successors, (622), 14 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:57,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:57,636 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 84.0) internal successors, (1260), 15 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:57,636 INFO L175 Difference]: Start difference. First operand has 138 places, 104 transitions, 464 flow. Second operand 14 states and 622 transitions. [2022-11-02 20:51:57,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 142 transitions, 905 flow [2022-11-02 20:51:57,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 142 transitions, 823 flow, removed 29 selfloop flow, removed 15 redundant places. [2022-11-02 20:51:57,644 INFO L231 Difference]: Finished difference. Result has 128 places, 104 transitions, 477 flow [2022-11-02 20:51:57,644 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=477, PETRI_PLACES=128, PETRI_TRANSITIONS=104} [2022-11-02 20:51:57,645 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 42 predicate places. [2022-11-02 20:51:57,645 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 104 transitions, 477 flow [2022-11-02 20:51:57,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:57,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:57,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:57,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:51:57,647 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash -127809110, now seen corresponding path program 9 times [2022-11-02 20:51:57,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:57,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525189635] [2022-11-02 20:51:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:57,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:58,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:58,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525189635] [2022-11-02 20:51:58,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525189635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:58,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:58,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:58,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251708915] [2022-11-02 20:51:58,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:58,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:58,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:58,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:58,182 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:58,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 104 transitions, 477 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:58,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:58,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:58,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:58,764 INFO L130 PetriNetUnfolder]: 81/366 cut-off events. [2022-11-02 20:51:58,764 INFO L131 PetriNetUnfolder]: For 532/538 co-relation queries the response was YES. [2022-11-02 20:51:58,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 366 events. 81/366 cut-off events. For 532/538 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1538 event pairs, 10 based on Foata normal form. 16/382 useless extension candidates. Maximal degree in co-relation 1130. Up to 83 conditions per place. [2022-11-02 20:51:58,768 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 76 selfloop transitions, 13 changer transitions 35/160 dead transitions. [2022-11-02 20:51:58,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 160 transitions, 1086 flow [2022-11-02 20:51:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:51:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 543 transitions. [2022-11-02 20:51:58,771 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5386904761904762 [2022-11-02 20:51:58,771 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 543 transitions. [2022-11-02 20:51:58,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 543 transitions. [2022-11-02 20:51:58,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:58,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 543 transitions. [2022-11-02 20:51:58,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.25) internal successors, (543), 12 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:58,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:58,776 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:58,777 INFO L175 Difference]: Start difference. First operand has 128 places, 104 transitions, 477 flow. Second operand 12 states and 543 transitions. [2022-11-02 20:51:58,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 160 transitions, 1086 flow [2022-11-02 20:51:58,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 160 transitions, 990 flow, removed 23 selfloop flow, removed 13 redundant places. [2022-11-02 20:51:58,785 INFO L231 Difference]: Finished difference. Result has 127 places, 105 transitions, 496 flow [2022-11-02 20:51:58,786 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=496, PETRI_PLACES=127, PETRI_TRANSITIONS=105} [2022-11-02 20:51:58,786 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 41 predicate places. [2022-11-02 20:51:58,787 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 105 transitions, 496 flow [2022-11-02 20:51:58,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:58,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:58,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:58,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:51:58,788 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:58,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:58,789 INFO L85 PathProgramCache]: Analyzing trace with hash -767399574, now seen corresponding path program 10 times [2022-11-02 20:51:58,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:58,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77957417] [2022-11-02 20:51:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:58,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:59,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:59,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77957417] [2022-11-02 20:51:59,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77957417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:59,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:59,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:51:59,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773120852] [2022-11-02 20:51:59,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:59,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:51:59,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:59,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:51:59,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:51:59,274 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:51:59,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 105 transitions, 496 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:59,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:51:59,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:59,735 INFO L130 PetriNetUnfolder]: 61/306 cut-off events. [2022-11-02 20:51:59,735 INFO L131 PetriNetUnfolder]: For 466/470 co-relation queries the response was YES. [2022-11-02 20:51:59,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 306 events. 61/306 cut-off events. For 466/470 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1146 event pairs, 8 based on Foata normal form. 9/315 useless extension candidates. Maximal degree in co-relation 929. Up to 121 conditions per place. [2022-11-02 20:51:59,739 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 60 selfloop transitions, 16 changer transitions 12/124 dead transitions. [2022-11-02 20:51:59,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 124 transitions, 771 flow [2022-11-02 20:51:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:51:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:51:59,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 536 transitions. [2022-11-02 20:51:59,741 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5317460317460317 [2022-11-02 20:51:59,742 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 536 transitions. [2022-11-02 20:51:59,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 536 transitions. [2022-11-02 20:51:59,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:59,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 536 transitions. [2022-11-02 20:51:59,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.666666666666664) internal successors, (536), 12 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,747 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,747 INFO L175 Difference]: Start difference. First operand has 127 places, 105 transitions, 496 flow. Second operand 12 states and 536 transitions. [2022-11-02 20:51:59,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 124 transitions, 771 flow [2022-11-02 20:51:59,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 124 transitions, 732 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-11-02 20:51:59,755 INFO L231 Difference]: Finished difference. Result has 130 places, 105 transitions, 501 flow [2022-11-02 20:51:59,756 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=501, PETRI_PLACES=130, PETRI_TRANSITIONS=105} [2022-11-02 20:51:59,757 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 44 predicate places. [2022-11-02 20:51:59,757 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 105 transitions, 501 flow [2022-11-02 20:51:59,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:59,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:59,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:59,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:51:59,758 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:51:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:59,759 INFO L85 PathProgramCache]: Analyzing trace with hash 969712462, now seen corresponding path program 11 times [2022-11-02 20:51:59,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:59,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582305867] [2022-11-02 20:51:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:59,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:00,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:00,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582305867] [2022-11-02 20:52:00,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582305867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:00,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:00,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:52:00,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201356863] [2022-11-02 20:52:00,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:00,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:52:00,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:00,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:52:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:52:00,262 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:52:00,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 105 transitions, 501 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:00,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:00,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:52:00,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:00,729 INFO L130 PetriNetUnfolder]: 53/260 cut-off events. [2022-11-02 20:52:00,729 INFO L131 PetriNetUnfolder]: For 411/413 co-relation queries the response was YES. [2022-11-02 20:52:00,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 260 events. 53/260 cut-off events. For 411/413 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 851 event pairs, 4 based on Foata normal form. 12/272 useless extension candidates. Maximal degree in co-relation 789. Up to 83 conditions per place. [2022-11-02 20:52:00,731 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 55 selfloop transitions, 10 changer transitions 32/133 dead transitions. [2022-11-02 20:52:00,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 133 transitions, 832 flow [2022-11-02 20:52:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:52:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:52:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 577 transitions. [2022-11-02 20:52:00,733 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5283882783882784 [2022-11-02 20:52:00,733 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 577 transitions. [2022-11-02 20:52:00,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 577 transitions. [2022-11-02 20:52:00,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:00,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 577 transitions. [2022-11-02 20:52:00,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 44.38461538461539) internal successors, (577), 13 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:00,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:00,742 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:00,742 INFO L175 Difference]: Start difference. First operand has 130 places, 105 transitions, 501 flow. Second operand 13 states and 577 transitions. [2022-11-02 20:52:00,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 133 transitions, 832 flow [2022-11-02 20:52:00,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 133 transitions, 756 flow, removed 8 selfloop flow, removed 15 redundant places. [2022-11-02 20:52:00,748 INFO L231 Difference]: Finished difference. Result has 128 places, 98 transitions, 397 flow [2022-11-02 20:52:00,749 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=397, PETRI_PLACES=128, PETRI_TRANSITIONS=98} [2022-11-02 20:52:00,750 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 42 predicate places. [2022-11-02 20:52:00,751 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 98 transitions, 397 flow [2022-11-02 20:52:00,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:00,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:00,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:00,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:52:00,752 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:52:00,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1703090522, now seen corresponding path program 12 times [2022-11-02 20:52:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:00,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421776943] [2022-11-02 20:52:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:01,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:01,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421776943] [2022-11-02 20:52:01,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421776943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:01,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:01,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:52:01,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579463725] [2022-11-02 20:52:01,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:01,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:52:01,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:52:01,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:52:01,188 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:52:01,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 98 transitions, 397 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:01,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:01,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:52:01,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:01,716 INFO L130 PetriNetUnfolder]: 62/281 cut-off events. [2022-11-02 20:52:01,716 INFO L131 PetriNetUnfolder]: For 349/351 co-relation queries the response was YES. [2022-11-02 20:52:01,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 281 events. 62/281 cut-off events. For 349/351 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 958 event pairs, 8 based on Foata normal form. 12/293 useless extension candidates. Maximal degree in co-relation 816. Up to 74 conditions per place. [2022-11-02 20:52:01,719 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 50 selfloop transitions, 7 changer transitions 50/143 dead transitions. [2022-11-02 20:52:01,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 143 transitions, 892 flow [2022-11-02 20:52:01,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:52:01,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:52:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 532 transitions. [2022-11-02 20:52:01,721 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-11-02 20:52:01,721 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 532 transitions. [2022-11-02 20:52:01,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 532 transitions. [2022-11-02 20:52:01,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:01,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 532 transitions. [2022-11-02 20:52:01,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 44.333333333333336) internal successors, (532), 12 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:01,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:01,726 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:01,732 INFO L175 Difference]: Start difference. First operand has 128 places, 98 transitions, 397 flow. Second operand 12 states and 532 transitions. [2022-11-02 20:52:01,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 143 transitions, 892 flow [2022-11-02 20:52:01,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 143 transitions, 794 flow, removed 23 selfloop flow, removed 15 redundant places. [2022-11-02 20:52:01,738 INFO L231 Difference]: Finished difference. Result has 118 places, 92 transitions, 342 flow [2022-11-02 20:52:01,739 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=342, PETRI_PLACES=118, PETRI_TRANSITIONS=92} [2022-11-02 20:52:01,739 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 32 predicate places. [2022-11-02 20:52:01,740 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 92 transitions, 342 flow [2022-11-02 20:52:01,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:01,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:01,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:01,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:52:01,743 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:52:01,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:01,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1469844396, now seen corresponding path program 13 times [2022-11-02 20:52:01,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:01,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839251036] [2022-11-02 20:52:01,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:01,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:02,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:02,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:02,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839251036] [2022-11-02 20:52:02,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839251036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:02,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:02,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:52:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489963990] [2022-11-02 20:52:02,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:02,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:52:02,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:02,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:52:02,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:52:02,210 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:52:02,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 92 transitions, 342 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:02,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:02,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:52:02,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:02,718 INFO L130 PetriNetUnfolder]: 37/216 cut-off events. [2022-11-02 20:52:02,718 INFO L131 PetriNetUnfolder]: For 230/232 co-relation queries the response was YES. [2022-11-02 20:52:02,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 216 events. 37/216 cut-off events. For 230/232 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 633 event pairs, 4 based on Foata normal form. 12/228 useless extension candidates. Maximal degree in co-relation 587. Up to 63 conditions per place. [2022-11-02 20:52:02,720 INFO L137 encePairwiseOnDemand]: 72/84 looper letters, 47 selfloop transitions, 12 changer transitions 27/122 dead transitions. [2022-11-02 20:52:02,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 122 transitions, 674 flow [2022-11-02 20:52:02,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:52:02,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:52:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 573 transitions. [2022-11-02 20:52:02,725 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5247252747252747 [2022-11-02 20:52:02,726 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 573 transitions. [2022-11-02 20:52:02,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 573 transitions. [2022-11-02 20:52:02,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:02,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 573 transitions. [2022-11-02 20:52:02,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 44.07692307692308) internal successors, (573), 13 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:02,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:02,734 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:02,734 INFO L175 Difference]: Start difference. First operand has 118 places, 92 transitions, 342 flow. Second operand 13 states and 573 transitions. [2022-11-02 20:52:02,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 122 transitions, 674 flow [2022-11-02 20:52:02,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 122 transitions, 617 flow, removed 19 selfloop flow, removed 12 redundant places. [2022-11-02 20:52:02,739 INFO L231 Difference]: Finished difference. Result has 118 places, 92 transitions, 340 flow [2022-11-02 20:52:02,740 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=340, PETRI_PLACES=118, PETRI_TRANSITIONS=92} [2022-11-02 20:52:02,740 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 32 predicate places. [2022-11-02 20:52:02,741 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 92 transitions, 340 flow [2022-11-02 20:52:02,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:02,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:02,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:02,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:52:02,742 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-02 20:52:02,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:02,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2007318252, now seen corresponding path program 14 times [2022-11-02 20:52:02,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:02,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155840792] [2022-11-02 20:52:02,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:02,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:03,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155840792] [2022-11-02 20:52:03,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155840792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:03,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:03,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-02 20:52:03,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367374213] [2022-11-02 20:52:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:03,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 20:52:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:03,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 20:52:03,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:52:03,198 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 84 [2022-11-02 20:52:03,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 92 transitions, 340 flow. Second operand has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:03,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 84 [2022-11-02 20:52:03,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:03,597 INFO L130 PetriNetUnfolder]: 22/144 cut-off events. [2022-11-02 20:52:03,598 INFO L131 PetriNetUnfolder]: For 131/133 co-relation queries the response was YES. [2022-11-02 20:52:03,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 144 events. 22/144 cut-off events. For 131/133 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 215 event pairs, 0 based on Foata normal form. 12/156 useless extension candidates. Maximal degree in co-relation 383. Up to 23 conditions per place. [2022-11-02 20:52:03,599 INFO L137 encePairwiseOnDemand]: 73/84 looper letters, 0 selfloop transitions, 0 changer transitions 110/110 dead transitions. [2022-11-02 20:52:03,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 110 transitions, 580 flow [2022-11-02 20:52:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:52:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-02 20:52:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 525 transitions. [2022-11-02 20:52:03,601 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2022-11-02 20:52:03,601 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 525 transitions. [2022-11-02 20:52:03,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 525 transitions. [2022-11-02 20:52:03,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:03,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 525 transitions. [2022-11-02 20:52:03,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 43.75) internal successors, (525), 12 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,605 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 84.0) internal successors, (1092), 13 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,606 INFO L175 Difference]: Start difference. First operand has 118 places, 92 transitions, 340 flow. Second operand 12 states and 525 transitions. [2022-11-02 20:52:03,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 110 transitions, 580 flow [2022-11-02 20:52:03,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 110 transitions, 539 flow, removed 5 selfloop flow, removed 12 redundant places. [2022-11-02 20:52:03,609 INFO L231 Difference]: Finished difference. Result has 114 places, 0 transitions, 0 flow [2022-11-02 20:52:03,609 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=114, PETRI_TRANSITIONS=0} [2022-11-02 20:52:03,610 INFO L287 CegarLoopForPetriNet]: 86 programPoint places, 28 predicate places. [2022-11-02 20:52:03,610 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 0 transitions, 0 flow [2022-11-02 20:52:03,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 41.76923076923077) internal successors, (543), 13 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,613 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 4 remaining) [2022-11-02 20:52:03,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-02 20:52:03,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-02 20:52:03,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-02 20:52:03,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:52:03,615 INFO L444 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1] [2022-11-02 20:52:03,620 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:52:03,620 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:52:03,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:52:03 BasicIcfg [2022-11-02 20:52:03,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:52:03,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:52:03,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:52:03,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:52:03,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:51:42" (3/4) ... [2022-11-02 20:52:03,631 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:52:03,638 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 20:52:03,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-02 20:52:03,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-02 20:52:03,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:52:03,693 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:52:03,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:52:03,694 INFO L158 Benchmark]: Toolchain (without parser) took 22915.74ms. Allocated memory was 98.6MB in the beginning and 325.1MB in the end (delta: 226.5MB). Free memory was 74.8MB in the beginning and 186.4MB in the end (delta: -111.6MB). Peak memory consumption was 113.3MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,695 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 71.1MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:52:03,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.03ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 56.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.45ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 54.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,696 INFO L158 Benchmark]: Boogie Preprocessor took 54.55ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,696 INFO L158 Benchmark]: RCFGBuilder took 458.84ms. Allocated memory is still 98.6MB. Free memory was 52.3MB in the beginning and 38.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,697 INFO L158 Benchmark]: TraceAbstraction took 21527.50ms. Allocated memory was 98.6MB in the beginning and 325.1MB in the end (delta: 226.5MB). Free memory was 37.7MB in the beginning and 189.5MB in the end (delta: -151.8MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,697 INFO L158 Benchmark]: Witness Printer took 67.19ms. Allocated memory is still 325.1MB. Free memory was 189.5MB in the beginning and 186.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:52:03,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 71.1MB in the end (delta: 52.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.03ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 56.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.45ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 54.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.55ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.84ms. Allocated memory is still 98.6MB. Free memory was 52.3MB in the beginning and 38.4MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21527.50ms. Allocated memory was 98.6MB in the beginning and 325.1MB in the end (delta: 226.5MB). Free memory was 37.7MB in the beginning and 189.5MB in the end (delta: -151.8MB). Peak memory consumption was 77.1MB. Max. memory is 16.1GB. * Witness Printer took 67.19ms. Allocated memory is still 325.1MB. Free memory was 189.5MB in the beginning and 186.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 999]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 994]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 101 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.4s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1917 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1917 mSDsluCounter, 920 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 631 mSDsCounter, 665 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5144 IncrementalHoareTripleChecker+Invalid, 5809 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 665 mSolverCounterUnsat, 310 mSDtfsCounter, 5144 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 326 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1523occurred in iteration=7, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1099 NumberOfCodeBlocks, 1099 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1081 ConstructedInterpolants, 0 QuantifiedInterpolants, 7600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:52:03,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebf9e160-6cfc-4a83-a060-e67929ce8dff/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE