./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:54:29,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:54:29,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:54:29,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:54:29,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:54:29,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:54:29,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:54:29,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:54:29,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:54:29,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:54:29,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:54:29,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:54:29,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:54:29,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:54:29,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:54:29,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:54:29,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:54:29,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:54:29,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:54:29,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:54:29,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:54:29,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:54:29,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:54:29,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:54:29,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:54:29,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:54:29,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:54:29,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:54:29,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:54:29,398 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:54:29,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:54:29,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:54:29,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:54:29,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:54:29,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:54:29,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:54:29,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:54:29,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:54:29,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:54:29,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:54:29,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:54:29,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:54:29,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:54:29,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:54:29,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:54:29,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:54:29,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:54:29,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:54:29,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:54:29,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:54:29,442 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:54:29,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:54:29,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:54:29,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:54:29,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:54:29,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:54:29,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:54:29,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:54:29,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:54:29,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:54:29,446 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:54:29,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:54:29,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:54:29,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:54:29,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:54:29,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:54:29,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:54:29,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:54:29,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:29,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:54:29,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:54:29,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:54:29,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:54:29,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:54:29,452 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:54:29,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:54:29,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:54:29,453 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_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-11-18 19:54:29,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:54:29,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:54:29,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:54:29,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:54:29,883 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:54:29,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-18 19:54:29,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/data/b9e90a4dd/18253edef87e4c209fe1b5e9e84786a4/FLAG1398bb219 [2022-11-18 19:54:30,695 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:54:30,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-11-18 19:54:30,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/data/b9e90a4dd/18253edef87e4c209fe1b5e9e84786a4/FLAG1398bb219 [2022-11-18 19:54:30,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/data/b9e90a4dd/18253edef87e4c209fe1b5e9e84786a4 [2022-11-18 19:54:30,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:54:30,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:54:30,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:30,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:54:30,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:54:30,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:30" (1/1) ... [2022-11-18 19:54:30,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4704de74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:30, skipping insertion in model container [2022-11-18 19:54:30,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:54:30" (1/1) ... [2022-11-18 19:54:30,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:54:30,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:54:32,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:32,061 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:54:32,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:54:32,309 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:54:32,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32 WrapperNode [2022-11-18 19:54:32,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:54:32,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:32,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:54:32,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:54:32,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,382 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-11-18 19:54:32,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:54:32,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:54:32,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:54:32,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:54:32,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:54:32,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:54:32,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:54:32,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:54:32,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (1/1) ... [2022-11-18 19:54:32,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:54:32,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:54:32,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:54:32,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:54:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-18 19:54:32,553 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-18 19:54:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-18 19:54:32,553 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-18 19:54:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-18 19:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-18 19:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:54:32,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:54:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:54:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-18 19:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-18 19:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:54:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:54:32,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:54:32,995 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:54:32,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:54:33,531 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:54:33,544 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:54:33,563 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-18 19:54:33,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:33 BoogieIcfgContainer [2022-11-18 19:54:33,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:54:33,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:54:33,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:54:33,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:54:33,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:54:30" (1/3) ... [2022-11-18 19:54:33,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7b95f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:33, skipping insertion in model container [2022-11-18 19:54:33,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:54:32" (2/3) ... [2022-11-18 19:54:33,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b7b95f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:54:33, skipping insertion in model container [2022-11-18 19:54:33,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:33" (3/3) ... [2022-11-18 19:54:33,587 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-11-18 19:54:33,598 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:54:33,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:54:33,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-18 19:54:33,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:54:33,786 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:54:33,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-11-18 19:54:33,956 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-11-18 19:54:33,956 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:54:33,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 654 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-11-18 19:54:33,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 276 transitions, 568 flow [2022-11-18 19:54:33,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 263 transitions, 538 flow [2022-11-18 19:54:33,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:54:34,004 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;@658ab73c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:54:34,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-18 19:54:34,034 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-18 19:54:34,034 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:54:34,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:34,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:34,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:34,046 INFO L85 PathProgramCache]: Analyzing trace with hash 801508647, now seen corresponding path program 1 times [2022-11-18 19:54:34,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:34,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348254671] [2022-11-18 19:54:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:34,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:34,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:34,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:34,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348254671] [2022-11-18 19:54:34,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348254671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:34,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:34,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:34,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936178059] [2022-11-18 19:54:34,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:34,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:34,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:34,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:34,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 276 [2022-11-18 19:54:34,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 263 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:34,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:34,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 276 [2022-11-18 19:54:34,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:34,900 INFO L130 PetriNetUnfolder]: 33/576 cut-off events. [2022-11-18 19:54:34,900 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-18 19:54:34,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 648 conditions, 576 events. 33/576 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3158 event pairs, 15 based on Foata normal form. 87/567 useless extension candidates. Maximal degree in co-relation 483. Up to 52 conditions per place. [2022-11-18 19:54:34,915 INFO L137 encePairwiseOnDemand]: 255/276 looper letters, 13 selfloop transitions, 2 changer transitions 3/229 dead transitions. [2022-11-18 19:54:34,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 229 transitions, 500 flow [2022-11-18 19:54:34,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2022-11-18 19:54:34,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8852657004830918 [2022-11-18 19:54:34,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2022-11-18 19:54:34,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2022-11-18 19:54:34,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:34,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2022-11-18 19:54:34,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:34,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:34,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:34,977 INFO L175 Difference]: Start difference. First operand has 241 places, 263 transitions, 538 flow. Second operand 3 states and 733 transitions. [2022-11-18 19:54:34,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 229 transitions, 500 flow [2022-11-18 19:54:34,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 229 transitions, 492 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:54:34,994 INFO L231 Difference]: Finished difference. Result has 230 places, 226 transitions, 460 flow [2022-11-18 19:54:34,997 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=230, PETRI_TRANSITIONS=226} [2022-11-18 19:54:35,004 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -11 predicate places. [2022-11-18 19:54:35,005 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 226 transitions, 460 flow [2022-11-18 19:54:35,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,007 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:35,008 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:35,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:54:35,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash 73192348, now seen corresponding path program 1 times [2022-11-18 19:54:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:35,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886092846] [2022-11-18 19:54:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:35,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:35,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886092846] [2022-11-18 19:54:35,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886092846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:35,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:35,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:35,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280774745] [2022-11-18 19:54:35,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:35,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:35,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:35,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:35,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 276 [2022-11-18 19:54:35,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 226 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:35,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 276 [2022-11-18 19:54:35,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:35,491 INFO L130 PetriNetUnfolder]: 124/548 cut-off events. [2022-11-18 19:54:35,491 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-18 19:54:35,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 548 events. 124/548 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3145 event pairs, 72 based on Foata normal form. 1/509 useless extension candidates. Maximal degree in co-relation 726. Up to 223 conditions per place. [2022-11-18 19:54:35,497 INFO L137 encePairwiseOnDemand]: 260/276 looper letters, 17 selfloop transitions, 7 changer transitions 8/227 dead transitions. [2022-11-18 19:54:35,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 227 transitions, 520 flow [2022-11-18 19:54:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:35,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 699 transitions. [2022-11-18 19:54:35,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8442028985507246 [2022-11-18 19:54:35,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 699 transitions. [2022-11-18 19:54:35,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 699 transitions. [2022-11-18 19:54:35,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:35,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 699 transitions. [2022-11-18 19:54:35,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,513 INFO L175 Difference]: Start difference. First operand has 230 places, 226 transitions, 460 flow. Second operand 3 states and 699 transitions. [2022-11-18 19:54:35,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 227 transitions, 520 flow [2022-11-18 19:54:35,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 227 transitions, 516 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:54:35,526 INFO L231 Difference]: Finished difference. Result has 220 places, 217 transitions, 468 flow [2022-11-18 19:54:35,526 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=220, PETRI_TRANSITIONS=217} [2022-11-18 19:54:35,527 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -21 predicate places. [2022-11-18 19:54:35,527 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 217 transitions, 468 flow [2022-11-18 19:54:35,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:35,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:35,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:54:35,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:35,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:35,530 INFO L85 PathProgramCache]: Analyzing trace with hash 299773919, now seen corresponding path program 1 times [2022-11-18 19:54:35,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:35,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266301478] [2022-11-18 19:54:35,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:35,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:35,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:35,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266301478] [2022-11-18 19:54:35,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266301478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:35,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:35,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:35,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498070028] [2022-11-18 19:54:35,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:35,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:35,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:35,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:35,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:35,710 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 276 [2022-11-18 19:54:35,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 217 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:35,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 276 [2022-11-18 19:54:35,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:35,838 INFO L130 PetriNetUnfolder]: 45/616 cut-off events. [2022-11-18 19:54:35,838 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-11-18 19:54:35,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 616 events. 45/616 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3546 event pairs, 9 based on Foata normal form. 0/554 useless extension candidates. Maximal degree in co-relation 466. Up to 63 conditions per place. [2022-11-18 19:54:35,845 INFO L137 encePairwiseOnDemand]: 272/276 looper letters, 10 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2022-11-18 19:54:35,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 218 transitions, 495 flow [2022-11-18 19:54:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:35,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 722 transitions. [2022-11-18 19:54:35,849 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8719806763285024 [2022-11-18 19:54:35,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 722 transitions. [2022-11-18 19:54:35,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 722 transitions. [2022-11-18 19:54:35,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:35,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 722 transitions. [2022-11-18 19:54:35,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,856 INFO L175 Difference]: Start difference. First operand has 220 places, 217 transitions, 468 flow. Second operand 3 states and 722 transitions. [2022-11-18 19:54:35,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 218 transitions, 495 flow [2022-11-18 19:54:35,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 218 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:54:35,863 INFO L231 Difference]: Finished difference. Result has 215 places, 217 transitions, 478 flow [2022-11-18 19:54:35,864 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=215, PETRI_TRANSITIONS=217} [2022-11-18 19:54:35,865 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -26 predicate places. [2022-11-18 19:54:35,865 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 217 transitions, 478 flow [2022-11-18 19:54:35,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.66666666666666) internal successors, (713), 3 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:35,866 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:35,866 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:35,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:54:35,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:35,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1436570188, now seen corresponding path program 1 times [2022-11-18 19:54:35,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:35,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613847381] [2022-11-18 19:54:35,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:35,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:36,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:36,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613847381] [2022-11-18 19:54:36,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613847381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:36,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:36,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:36,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003363891] [2022-11-18 19:54:36,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:36,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:36,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:36,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:36,013 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 276 [2022-11-18 19:54:36,014 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 217 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:36,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:36,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 276 [2022-11-18 19:54:36,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:36,348 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [33#L1843-3true, 76#L1819-3true, 269#true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-18 19:54:36,349 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:36,349 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:36,349 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:36,349 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:36,359 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [33#L1843-3true, 76#L1819-3true, 269#true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-18 19:54:36,359 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:36,359 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 19:54:36,360 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:36,361 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:36,379 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [33#L1843-3true, 269#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true]) [2022-11-18 19:54:36,380 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-18 19:54:36,380 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:36,380 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:36,380 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:36,380 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-18 19:54:36,410 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][173], [33#L1843-3true, Black: 259#true, 16#L1811-2true, 269#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 118#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:36,411 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:36,411 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:36,412 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:36,412 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:36,418 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][149], [33#L1843-3true, 16#L1811-2true, Black: 259#true, 269#true, 266#(= |#race~end_time~0| 0), 118#L1824-2true, Black: 264#true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:36,418 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:36,419 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:36,419 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:36,419 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:36,435 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][149], [16#L1811-2true, Black: 259#true, 175#L1845-5true, 269#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 118#L1824-2true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:36,436 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 19:54:36,436 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:36,436 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:54:36,436 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 19:54:36,493 INFO L130 PetriNetUnfolder]: 218/1606 cut-off events. [2022-11-18 19:54:36,494 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 19:54:36,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2115 conditions, 1606 events. 218/1606 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 12142 event pairs, 35 based on Foata normal form. 0/1417 useless extension candidates. Maximal degree in co-relation 1922. Up to 184 conditions per place. [2022-11-18 19:54:36,512 INFO L137 encePairwiseOnDemand]: 265/276 looper letters, 24 selfloop transitions, 8 changer transitions 0/231 dead transitions. [2022-11-18 19:54:36,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 231 transitions, 572 flow [2022-11-18 19:54:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:36,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 725 transitions. [2022-11-18 19:54:36,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8756038647342995 [2022-11-18 19:54:36,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 725 transitions. [2022-11-18 19:54:36,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 725 transitions. [2022-11-18 19:54:36,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:36,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 725 transitions. [2022-11-18 19:54:36,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:36,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:36,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:36,522 INFO L175 Difference]: Start difference. First operand has 215 places, 217 transitions, 478 flow. Second operand 3 states and 725 transitions. [2022-11-18 19:54:36,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 231 transitions, 572 flow [2022-11-18 19:54:36,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 231 transitions, 572 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:54:36,530 INFO L231 Difference]: Finished difference. Result has 219 places, 225 transitions, 548 flow [2022-11-18 19:54:36,530 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=219, PETRI_TRANSITIONS=225} [2022-11-18 19:54:36,532 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -22 predicate places. [2022-11-18 19:54:36,532 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 225 transitions, 548 flow [2022-11-18 19:54:36,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.0) internal successors, (693), 3 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:36,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:36,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:36,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:54:36,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:36,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:36,535 INFO L85 PathProgramCache]: Analyzing trace with hash -764607465, now seen corresponding path program 1 times [2022-11-18 19:54:36,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:36,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680798977] [2022-11-18 19:54:36,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:36,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:37,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:37,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680798977] [2022-11-18 19:54:37,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680798977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:37,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:37,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:37,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492079567] [2022-11-18 19:54:37,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:37,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:37,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:37,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:37,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:37,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 276 [2022-11-18 19:54:37,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 225 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:37,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 276 [2022-11-18 19:54:37,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:37,741 INFO L130 PetriNetUnfolder]: 110/1123 cut-off events. [2022-11-18 19:54:37,741 INFO L131 PetriNetUnfolder]: For 40/68 co-relation queries the response was YES. [2022-11-18 19:54:37,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1123 events. 110/1123 cut-off events. For 40/68 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 7458 event pairs, 13 based on Foata normal form. 16/1027 useless extension candidates. Maximal degree in co-relation 1302. Up to 138 conditions per place. [2022-11-18 19:54:37,753 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 14 selfloop transitions, 4 changer transitions 0/224 dead transitions. [2022-11-18 19:54:37,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 224 transitions, 582 flow [2022-11-18 19:54:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:54:37,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:54:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1381 transitions. [2022-11-18 19:54:37,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8339371980676329 [2022-11-18 19:54:37,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1381 transitions. [2022-11-18 19:54:37,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1381 transitions. [2022-11-18 19:54:37,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:37,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1381 transitions. [2022-11-18 19:54:37,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.16666666666666) internal successors, (1381), 6 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,770 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,770 INFO L175 Difference]: Start difference. First operand has 219 places, 225 transitions, 548 flow. Second operand 6 states and 1381 transitions. [2022-11-18 19:54:37,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 224 transitions, 582 flow [2022-11-18 19:54:37,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 224 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:54:37,779 INFO L231 Difference]: Finished difference. Result has 221 places, 224 transitions, 538 flow [2022-11-18 19:54:37,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=538, PETRI_PLACES=221, PETRI_TRANSITIONS=224} [2022-11-18 19:54:37,783 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -20 predicate places. [2022-11-18 19:54:37,783 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 224 transitions, 538 flow [2022-11-18 19:54:37,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,785 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:37,785 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:37,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:54:37,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:37,787 INFO L85 PathProgramCache]: Analyzing trace with hash -881200347, now seen corresponding path program 1 times [2022-11-18 19:54:37,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:37,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084867081] [2022-11-18 19:54:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:37,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:37,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:37,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084867081] [2022-11-18 19:54:37,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084867081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:37,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:37,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:37,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206284386] [2022-11-18 19:54:37,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:37,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:37,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:37,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:37,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:37,919 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 276 [2022-11-18 19:54:37,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 224 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:37,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:37,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 276 [2022-11-18 19:54:37,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:38,216 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-18 19:54:38,217 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-18 19:54:38,217 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,217 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:38,217 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,241 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-18 19:54:38,241 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,242 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,242 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:38,242 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,242 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-18 19:54:38,278 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), 275#true, Black: 264#true]) [2022-11-18 19:54:38,279 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,279 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,279 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,279 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 19:54:38,334 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][171], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, Black: 259#true, 282#true, 16#L1811-2true, 266#(= |#race~end_time~0| 0), 275#true, 118#L1824-2true, Black: 264#true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,334 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:38,334 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:38,334 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:38,335 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:38,340 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 16#L1811-2true, Black: 259#true, 282#true, 266#(= |#race~end_time~0| 0), 118#L1824-2true, 275#true, Black: 264#true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,340 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:38,340 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:38,341 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:38,341 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:38,357 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 16#L1811-2true, Black: 259#true, 282#true, 175#L1845-5true, 266#(= |#race~end_time~0| 0), 275#true, 118#L1824-2true, Black: 264#true, 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,358 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 19:54:38,358 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:38,358 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:54:38,358 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 19:54:38,383 INFO L130 PetriNetUnfolder]: 266/1956 cut-off events. [2022-11-18 19:54:38,383 INFO L131 PetriNetUnfolder]: For 134/173 co-relation queries the response was YES. [2022-11-18 19:54:38,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1956 events. 266/1956 cut-off events. For 134/173 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 15866 event pairs, 50 based on Foata normal form. 6/1754 useless extension candidates. Maximal degree in co-relation 2569. Up to 246 conditions per place. [2022-11-18 19:54:38,403 INFO L137 encePairwiseOnDemand]: 269/276 looper letters, 35 selfloop transitions, 10 changer transitions 0/241 dead transitions. [2022-11-18 19:54:38,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 687 flow [2022-11-18 19:54:38,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:38,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 717 transitions. [2022-11-18 19:54:38,407 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8659420289855072 [2022-11-18 19:54:38,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 717 transitions. [2022-11-18 19:54:38,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 717 transitions. [2022-11-18 19:54:38,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:38,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 717 transitions. [2022-11-18 19:54:38,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,413 INFO L175 Difference]: Start difference. First operand has 221 places, 224 transitions, 538 flow. Second operand 3 states and 717 transitions. [2022-11-18 19:54:38,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 687 flow [2022-11-18 19:54:38,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 241 transitions, 680 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:54:38,419 INFO L231 Difference]: Finished difference. Result has 221 places, 232 transitions, 617 flow [2022-11-18 19:54:38,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=617, PETRI_PLACES=221, PETRI_TRANSITIONS=232} [2022-11-18 19:54:38,421 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -20 predicate places. [2022-11-18 19:54:38,421 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 232 transitions, 617 flow [2022-11-18 19:54:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.0) internal successors, (690), 3 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:38,422 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:38,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:54:38,423 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:38,423 INFO L85 PathProgramCache]: Analyzing trace with hash -220158674, now seen corresponding path program 1 times [2022-11-18 19:54:38,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:38,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789546729] [2022-11-18 19:54:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:38,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:38,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:38,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:38,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789546729] [2022-11-18 19:54:38,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789546729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:38,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:38,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:54:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107341276] [2022-11-18 19:54:38,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:38,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:54:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:54:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:54:38,521 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 276 [2022-11-18 19:54:38,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 232 transitions, 617 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:38,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 276 [2022-11-18 19:54:38,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:38,802 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:38,802 INFO L383 tUnfolder$Statistics]: this new event has 130 ancestors and is cut-off event [2022-11-18 19:54:38,803 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,803 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:38,803 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,816 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 269#true, 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:38,816 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,817 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,817 INFO L386 tUnfolder$Statistics]: existing Event has 115 ancestors and is cut-off event [2022-11-18 19:54:38,817 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-18 19:54:38,827 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([749] L1803-2-->L1803-3: Formula: (= |v_#race~end_time~0_4| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_4|} AuxVars[] AssignedVars[#race~end_time~0][111], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:38,827 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,828 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,828 INFO L386 tUnfolder$Statistics]: existing Event has 96 ancestors and is cut-off event [2022-11-18 19:54:38,828 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,828 INFO L386 tUnfolder$Statistics]: existing Event has 130 ancestors and is cut-off event [2022-11-18 19:54:38,837 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([685] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][105], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 76#L1819-3true, 259#true, 50#L1803-3true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:38,837 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:38,838 INFO L386 tUnfolder$Statistics]: existing Event has 109 ancestors and is cut-off event [2022-11-18 19:54:38,838 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 19:54:38,838 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-18 19:54:38,896 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([708] L1824-1-->L1824-2: Formula: (= |v_#race~stderr~0_1| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_1|} AuxVars[] AssignedVars[#race~stderr~0][170], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 16#L1811-2true, 282#true, Black: 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 118#L1824-2true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,897 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:38,897 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:38,897 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:38,897 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:38,902 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 33#L1843-3true, 288#true, 282#true, 16#L1811-2true, Black: 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 118#L1824-2true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,903 INFO L383 tUnfolder$Statistics]: this new event has 139 ancestors and is cut-off event [2022-11-18 19:54:38,903 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:38,903 INFO L386 tUnfolder$Statistics]: existing Event has 118 ancestors and is cut-off event [2022-11-18 19:54:38,903 INFO L386 tUnfolder$Statistics]: existing Event has 137 ancestors and is cut-off event [2022-11-18 19:54:38,921 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([787] L1811-1-->L1811-2: Formula: (= |v_#race~stderr~0_10| 0) InVars {} OutVars{#race~stderr~0=|v_#race~stderr~0_10|} AuxVars[] AssignedVars[#race~stderr~0][147], [Black: 271#(= |#race~counter~0| 0), 288#true, 16#L1811-2true, Black: 259#true, 282#true, 175#L1845-5true, 266#(= |#race~end_time~0| 0), Black: 264#true, 118#L1824-2true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 261#(= |#race~stderr~0| 0)]) [2022-11-18 19:54:38,922 INFO L383 tUnfolder$Statistics]: this new event has 145 ancestors and is cut-off event [2022-11-18 19:54:38,922 INFO L386 tUnfolder$Statistics]: existing Event has 111 ancestors and is cut-off event [2022-11-18 19:54:38,922 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:38,922 INFO L386 tUnfolder$Statistics]: existing Event has 143 ancestors and is cut-off event [2022-11-18 19:54:38,950 INFO L130 PetriNetUnfolder]: 287/1940 cut-off events. [2022-11-18 19:54:38,950 INFO L131 PetriNetUnfolder]: For 505/651 co-relation queries the response was YES. [2022-11-18 19:54:38,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2976 conditions, 1940 events. 287/1940 cut-off events. For 505/651 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 15326 event pairs, 43 based on Foata normal form. 4/1748 useless extension candidates. Maximal degree in co-relation 2768. Up to 258 conditions per place. [2022-11-18 19:54:38,974 INFO L137 encePairwiseOnDemand]: 270/276 looper letters, 38 selfloop transitions, 9 changer transitions 0/244 dead transitions. [2022-11-18 19:54:38,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 244 transitions, 764 flow [2022-11-18 19:54:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:54:38,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:54:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2022-11-18 19:54:38,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623188405797102 [2022-11-18 19:54:38,979 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 714 transitions. [2022-11-18 19:54:38,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 714 transitions. [2022-11-18 19:54:38,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:38,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 714 transitions. [2022-11-18 19:54:38,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 276.0) internal successors, (1104), 4 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:38,988 INFO L175 Difference]: Start difference. First operand has 221 places, 232 transitions, 617 flow. Second operand 3 states and 714 transitions. [2022-11-18 19:54:38,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 244 transitions, 764 flow [2022-11-18 19:54:38,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 244 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:54:39,002 INFO L231 Difference]: Finished difference. Result has 223 places, 237 transitions, 665 flow [2022-11-18 19:54:39,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=223, PETRI_TRANSITIONS=237} [2022-11-18 19:54:39,004 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -18 predicate places. [2022-11-18 19:54:39,005 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 237 transitions, 665 flow [2022-11-18 19:54:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:39,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:39,006 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:39,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:54:39,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:39,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1149457702, now seen corresponding path program 1 times [2022-11-18 19:54:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:39,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309870006] [2022-11-18 19:54:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:39,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:39,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309870006] [2022-11-18 19:54:39,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309870006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:39,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:39,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:39,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439223071] [2022-11-18 19:54:39,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:39,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:54:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:54:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:54:39,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 276 [2022-11-18 19:54:39,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 237 transitions, 665 flow. Second operand has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:39,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:39,831 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 276 [2022-11-18 19:54:39,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:40,098 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][185], [Black: 269#true, 288#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 10#L1830-1true, 23#L1808-7true]) [2022-11-18 19:54:40,098 INFO L383 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-11-18 19:54:40,098 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:40,098 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:40,098 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 19:54:40,114 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][194], [Black: 269#true, 288#true, 15#L1825-1true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 23#L1808-7true]) [2022-11-18 19:54:40,114 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:40,114 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 19:54:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 19:54:40,115 INFO L386 tUnfolder$Statistics]: existing Event has 128 ancestors and is cut-off event [2022-11-18 19:54:40,177 INFO L130 PetriNetUnfolder]: 198/1575 cut-off events. [2022-11-18 19:54:40,178 INFO L131 PetriNetUnfolder]: For 248/312 co-relation queries the response was YES. [2022-11-18 19:54:40,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 1575 events. 198/1575 cut-off events. For 248/312 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 11800 event pairs, 13 based on Foata normal form. 4/1424 useless extension candidates. Maximal degree in co-relation 2097. Up to 189 conditions per place. [2022-11-18 19:54:40,200 INFO L137 encePairwiseOnDemand]: 271/276 looper letters, 13 selfloop transitions, 4 changer transitions 0/236 dead transitions. [2022-11-18 19:54:40,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 236 transitions, 697 flow [2022-11-18 19:54:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:54:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:54:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2022-11-18 19:54:40,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2022-11-18 19:54:40,205 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2022-11-18 19:54:40,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2022-11-18 19:54:40,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:40,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2022-11-18 19:54:40,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:40,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:40,215 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 276.0) internal successors, (1932), 7 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:40,216 INFO L175 Difference]: Start difference. First operand has 223 places, 237 transitions, 665 flow. Second operand 6 states and 1380 transitions. [2022-11-18 19:54:40,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 236 transitions, 697 flow [2022-11-18 19:54:40,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 236 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:54:40,225 INFO L231 Difference]: Finished difference. Result has 225 places, 236 transitions, 653 flow [2022-11-18 19:54:40,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=653, PETRI_PLACES=225, PETRI_TRANSITIONS=236} [2022-11-18 19:54:40,228 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -16 predicate places. [2022-11-18 19:54:40,228 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 236 transitions, 653 flow [2022-11-18 19:54:40,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:40,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:40,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:40,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:54:40,230 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash -919172633, now seen corresponding path program 1 times [2022-11-18 19:54:40,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:40,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461792402] [2022-11-18 19:54:40,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:40,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:40,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:40,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:40,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461792402] [2022-11-18 19:54:40,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461792402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:40,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:40,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:54:40,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137362590] [2022-11-18 19:54:40,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:40,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:54:40,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:40,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:54:40,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:54:40,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 276 [2022-11-18 19:54:40,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 236 transitions, 653 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:40,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:54:40,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 276 [2022-11-18 19:54:40,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:54:40,908 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][201], [Black: 269#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 10#L1830-1true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:40,909 INFO L383 tUnfolder$Statistics]: this new event has 121 ancestors and is cut-off event [2022-11-18 19:54:40,909 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-18 19:54:40,909 INFO L386 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-11-18 19:54:40,909 INFO L386 tUnfolder$Statistics]: existing Event has 119 ancestors and is cut-off event [2022-11-18 19:54:40,938 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][211], [Black: 269#true, 33#L1843-3true, 15#L1825-1true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 81#L1808-2true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:40,938 INFO L383 tUnfolder$Statistics]: this new event has 123 ancestors and is cut-off event [2022-11-18 19:54:40,938 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-18 19:54:40,938 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-18 19:54:40,939 INFO L386 tUnfolder$Statistics]: existing Event has 121 ancestors and is cut-off event [2022-11-18 19:54:40,980 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([702] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][202], [Black: 269#true, 33#L1843-3true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|), 23#L1808-7true, 10#L1830-1true]) [2022-11-18 19:54:40,980 INFO L383 tUnfolder$Statistics]: this new event has 126 ancestors and is cut-off event [2022-11-18 19:54:40,980 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:40,981 INFO L386 tUnfolder$Statistics]: existing Event has 105 ancestors and is cut-off event [2022-11-18 19:54:40,981 INFO L386 tUnfolder$Statistics]: existing Event has 124 ancestors and is cut-off event [2022-11-18 19:54:41,010 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([709] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][210], [Black: 269#true, 33#L1843-3true, 15#L1825-1true, Black: 290#(= |#race~counter~0| |monitor_threadThread1of1ForFork0_#t~nondet49|), 294#true, 259#true, 266#(= |#race~end_time~0| 0), Black: 264#true, 305#(not (= (select (select |#pthreadsMutex| |~#mutex~0.base|) |~#mutex~0.offset|) 0)), 23#L1808-7true, Black: 284#(= |#race~counter~0| |counter_threadThread1of1ForFork1_#t~nondet36|)]) [2022-11-18 19:54:41,011 INFO L383 tUnfolder$Statistics]: this new event has 128 ancestors and is cut-off event [2022-11-18 19:54:41,011 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 19:54:41,011 INFO L386 tUnfolder$Statistics]: existing Event has 107 ancestors and is cut-off event [2022-11-18 19:54:41,011 INFO L386 tUnfolder$Statistics]: existing Event has 126 ancestors and is cut-off event [2022-11-18 19:54:41,224 INFO L130 PetriNetUnfolder]: 381/3096 cut-off events. [2022-11-18 19:54:41,224 INFO L131 PetriNetUnfolder]: For 268/314 co-relation queries the response was YES. [2022-11-18 19:54:41,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4569 conditions, 3096 events. 381/3096 cut-off events. For 268/314 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 29686 event pairs, 27 based on Foata normal form. 23/2832 useless extension candidates. Maximal degree in co-relation 4329. Up to 308 conditions per place. [2022-11-18 19:54:41,259 INFO L137 encePairwiseOnDemand]: 268/276 looper letters, 33 selfloop transitions, 12 changer transitions 0/258 dead transitions. [2022-11-18 19:54:41,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 258 transitions, 790 flow [2022-11-18 19:54:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:54:41,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-18 19:54:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 946 transitions. [2022-11-18 19:54:41,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8568840579710145 [2022-11-18 19:54:41,263 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 946 transitions. [2022-11-18 19:54:41,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 946 transitions. [2022-11-18 19:54:41,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:54:41,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 946 transitions. [2022-11-18 19:54:41,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.5) internal successors, (946), 4 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:41,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:41,271 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 276.0) internal successors, (1380), 5 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:41,271 INFO L175 Difference]: Start difference. First operand has 225 places, 236 transitions, 653 flow. Second operand 4 states and 946 transitions. [2022-11-18 19:54:41,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 258 transitions, 790 flow [2022-11-18 19:54:41,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 258 transitions, 783 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:54:41,279 INFO L231 Difference]: Finished difference. Result has 226 places, 247 transitions, 723 flow [2022-11-18 19:54:41,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=276, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=723, PETRI_PLACES=226, PETRI_TRANSITIONS=247} [2022-11-18 19:54:41,281 INFO L288 CegarLoopForPetriNet]: 241 programPoint places, -15 predicate places. [2022-11-18 19:54:41,281 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 247 transitions, 723 flow [2022-11-18 19:54:41,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:54:41,283 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:54:41,283 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:41,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:54:41,284 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-18 19:54:41,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:41,284 INFO L85 PathProgramCache]: Analyzing trace with hash -166753817, now seen corresponding path program 2 times [2022-11-18 19:54:41,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:41,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67362572] [2022-11-18 19:54:41,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:41,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:54:41,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:54:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:54:41,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:54:41,425 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:54:41,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-11-18 19:54:41,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-18 19:54:41,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-18 19:54:41,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-18 19:54:41,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-18 19:54:41,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-18 19:54:41,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-18 19:54:41,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-18 19:54:41,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-18 19:54:41,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-18 19:54:41,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-18 19:54:41,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-18 19:54:41,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-18 19:54:41,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-18 19:54:41,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-18 19:54:41,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-18 19:54:41,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-18 19:54:41,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-18 19:54:41,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-18 19:54:41,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-11-18 19:54:41,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-18 19:54:41,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-18 19:54:41,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-18 19:54:41,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-11-18 19:54:41,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-18 19:54:41,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-18 19:54:41,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-18 19:54:41,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-18 19:54:41,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-18 19:54:41,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-18 19:54:41,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-18 19:54:41,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:54:41,445 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:41,454 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:54:41,454 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:54:41,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:54:41 BasicIcfg [2022-11-18 19:54:41,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:54:41,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:54:41,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:54:41,588 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:54:41,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:54:33" (3/4) ... [2022-11-18 19:54:41,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:54:41,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:54:41,593 INFO L158 Benchmark]: Toolchain (without parser) took 10708.89ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 107.1MB in the beginning and 151.5MB in the end (delta: -44.4MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,593 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:54:41,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1419.96ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 107.3MB in the end (delta: -547.1kB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.05ms. Allocated memory is still 140.5MB. Free memory was 107.3MB in the beginning and 103.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,594 INFO L158 Benchmark]: Boogie Preprocessor took 56.62ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,595 INFO L158 Benchmark]: RCFGBuilder took 1125.55ms. Allocated memory is still 140.5MB. Free memory was 101.0MB in the beginning and 73.0MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,595 INFO L158 Benchmark]: TraceAbstraction took 8018.17ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 72.3MB in the beginning and 151.5MB in the end (delta: -79.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-18 19:54:41,596 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 247.5MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:54:41,598 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 100.7MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1419.96ms. Allocated memory is still 140.5MB. Free memory was 106.7MB in the beginning and 107.3MB in the end (delta: -547.1kB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.05ms. Allocated memory is still 140.5MB. Free memory was 107.3MB in the beginning and 103.8MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.62ms. Allocated memory is still 140.5MB. Free memory was 103.8MB in the beginning and 101.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1125.55ms. Allocated memory is still 140.5MB. Free memory was 101.0MB in the beginning and 73.0MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8018.17ms. Allocated memory was 140.5MB in the beginning and 247.5MB in the end (delta: 107.0MB). Free memory was 72.3MB in the beginning and 151.5MB in the end (delta: -79.2MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 247.5MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1830]: Data race detected Data race detected The following path leads to a data race: [L1799] 0 time_t end_time; VAL [end_time=0] [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [end_time=0, mutex={25:0}] [L1798] 0 long counter; VAL [counter=0, end_time=0, mutex={25:0}] [L1836] 0 int status; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, end_time=0, mutex={25:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=0, mutex={25:0}] [L1838] 0 pthread_t monitor_thread_id; VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}] [L1839] 0 end_time = time (((void *)0)) + 60 VAL [\old(argc)=1152, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, end_time = time (((void *)0)) + 60=1150, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=0] [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=0, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(argc)=1152, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, status=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1152, arg={0:0}, arg={0:0}, argc=1152, argv={1153:1151}, argv={1153:1151}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=0, status=0] [L1817] 2 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}] [L1801] 1 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1819] COND TRUE 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, time (((void *)0))=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, pthread_mutex_trylock (&mutex)=16, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, status=16] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, pthread_mutex_lock (&mutex)=0, status=0, status=16] [L1805] COND FALSE 1 !(status != 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, status=16, status=0] [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1807] COND TRUE 1 spin < 10000000 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1154, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=0, counter++=1154, end_time=60, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 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: 7.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 115 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=9, InterpolantAutomatonStates: 34, 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, 2.5s InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:54:41,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f3f7c54-5b68-4c98-8ac3-63d0d49b1eca/bin/uautomizer-TMbwUNV5ro/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE