./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:37:42,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:37:42,282 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:37:42,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:37:42,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:37:42,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:37:42,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:37:42,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:37:42,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:37:42,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:37:42,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:37:42,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:37:42,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:37:42,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:37:42,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:37:42,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:37:42,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:37:42,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:37:42,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:37:42,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:37:42,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:37:42,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:37:42,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:37:42,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:37:42,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:37:42,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:37:42,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:37:42,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:37:42,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:37:42,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:37:42,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:37:42,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:37:42,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:37:42,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:37:42,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:37:42,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:37:42,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:37:42,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:37:42,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:37:42,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:37:42,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:37:42,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:37:42,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:37:42,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:37:42,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:37:42,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:37:42,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:37:42,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:37:42,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:37:42,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:37:42,441 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:37:42,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:37:42,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:37:42,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:37:42,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:37:42,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:37:42,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:37:42,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:37:42,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:37:42,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:37:42,444 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:37:42,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:37:42,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:37:42,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:37:42,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:37:42,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:37:42,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:37:42,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:37:42,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:42,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:37:42,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:37:42,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:37:42,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:37:42,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:37:42,447 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:37:42,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:37:42,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:37:42,448 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_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2022-11-16 12:37:42,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:37:42,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:37:42,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:37:42,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:37:42,784 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:37:42,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-16 12:37:42,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/data/1aeba85ca/6737c6d91e1640d0b336b2c2c520c063/FLAG653a19ed8 [2022-11-16 12:37:43,538 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:37:43,538 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2022-11-16 12:37:43,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/data/1aeba85ca/6737c6d91e1640d0b336b2c2c520c063/FLAG653a19ed8 [2022-11-16 12:37:43,699 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/data/1aeba85ca/6737c6d91e1640d0b336b2c2c520c063 [2022-11-16 12:37:43,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:37:43,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:37:43,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:43,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:37:43,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:37:43,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:43" (1/1) ... [2022-11-16 12:37:43,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54dd761c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:43, skipping insertion in model container [2022-11-16 12:37:43,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:37:43" (1/1) ... [2022-11-16 12:37:43,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:37:43,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:37:44,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:44,833 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:37:44,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:37:45,028 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:37:45,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45 WrapperNode [2022-11-16 12:37:45,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:37:45,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:45,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:37:45,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:37:45,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,134 INFO L138 Inliner]: procedures = 524, calls = 63, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 147 [2022-11-16 12:37:45,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:37:45,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:37:45,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:37:45,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:37:45,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,212 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:37:45,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:37:45,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:37:45,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:37:45,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (1/1) ... [2022-11-16 12:37:45,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:37:45,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:37:45,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:37:45,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:37:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-11-16 12:37:45,346 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-11-16 12:37:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-16 12:37:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-11-16 12:37:45,347 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-11-16 12:37:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-11-16 12:37:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:37:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:37:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:37:45,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:37:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:37:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:37:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:37:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-16 12:37:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 12:37:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:37:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:37:45,351 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:37:45,779 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:37:45,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:37:46,230 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:37:46,243 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:37:46,243 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-11-16 12:37:46,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46 BoogieIcfgContainer [2022-11-16 12:37:46,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:37:46,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:37:46,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:37:46,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:37:46,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:37:43" (1/3) ... [2022-11-16 12:37:46,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cceb753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:46, skipping insertion in model container [2022-11-16 12:37:46,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:37:45" (2/3) ... [2022-11-16 12:37:46,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cceb753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:37:46, skipping insertion in model container [2022-11-16 12:37:46,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46" (3/3) ... [2022-11-16 12:37:46,255 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2022-11-16 12:37:46,265 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:37:46,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:37:46,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-16 12:37:46,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:37:46,453 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:37:46,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 278 transitions, 572 flow [2022-11-16 12:37:46,668 INFO L130 PetriNetUnfolder]: 32/276 cut-off events. [2022-11-16 12:37:46,669 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:37:46,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 32/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 619 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 165. Up to 5 conditions per place. [2022-11-16 12:37:46,688 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 278 transitions, 572 flow [2022-11-16 12:37:46,698 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 259 transitions, 530 flow [2022-11-16 12:37:46,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:37:46,719 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;@33a2dd9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:37:46,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-16 12:37:46,737 INFO L130 PetriNetUnfolder]: 0/57 cut-off events. [2022-11-16 12:37:46,737 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:37:46,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:46,738 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:46,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:46,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 528094162, now seen corresponding path program 1 times [2022-11-16 12:37:46,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:46,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792486391] [2022-11-16 12:37:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:47,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:47,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:47,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792486391] [2022-11-16 12:37:47,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792486391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:47,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:47,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:47,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266163174] [2022-11-16 12:37:47,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:47,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:47,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:47,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:47,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 278 [2022-11-16 12:37:47,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 259 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:47,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 278 [2022-11-16 12:37:47,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:47,605 INFO L130 PetriNetUnfolder]: 33/540 cut-off events. [2022-11-16 12:37:47,605 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-16 12:37:47,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 540 events. 33/540 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2779 event pairs, 15 based on Foata normal form. 87/539 useless extension candidates. Maximal degree in co-relation 443. Up to 52 conditions per place. [2022-11-16 12:37:47,616 INFO L137 encePairwiseOnDemand]: 257/278 looper letters, 13 selfloop transitions, 2 changer transitions 3/225 dead transitions. [2022-11-16 12:37:47,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 225 transitions, 492 flow [2022-11-16 12:37:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:47,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:47,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-11-16 12:37:47,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8860911270983214 [2022-11-16 12:37:47,637 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-11-16 12:37:47,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-11-16 12:37:47,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:47,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-11-16 12:37:47,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,663 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,665 INFO L175 Difference]: Start difference. First operand has 237 places, 259 transitions, 530 flow. Second operand 3 states and 739 transitions. [2022-11-16 12:37:47,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 225 transitions, 492 flow [2022-11-16 12:37:47,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 225 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:37:47,678 INFO L231 Difference]: Finished difference. Result has 226 places, 222 transitions, 452 flow [2022-11-16 12:37:47,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=452, PETRI_PLACES=226, PETRI_TRANSITIONS=222} [2022-11-16 12:37:47,685 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -11 predicate places. [2022-11-16 12:37:47,686 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 222 transitions, 452 flow [2022-11-16 12:37:47,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 236.33333333333334) internal successors, (709), 3 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:47,689 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] [2022-11-16 12:37:47,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:37:47,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:47,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:47,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1925906869, now seen corresponding path program 1 times [2022-11-16 12:37:47,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:47,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249286701] [2022-11-16 12:37:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:47,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:47,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:47,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249286701] [2022-11-16 12:37:47,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249286701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:47,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:47,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:47,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241635159] [2022-11-16 12:37:47,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:47,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:47,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:47,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 278 [2022-11-16 12:37:47,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 222 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:47,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:47,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 278 [2022-11-16 12:37:47,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:48,073 INFO L130 PetriNetUnfolder]: 23/484 cut-off events. [2022-11-16 12:37:48,073 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 12:37:48,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 484 events. 23/484 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2282 event pairs, 4 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 461. Up to 30 conditions per place. [2022-11-16 12:37:48,081 INFO L137 encePairwiseOnDemand]: 274/278 looper letters, 11 selfloop transitions, 2 changer transitions 0/223 dead transitions. [2022-11-16 12:37:48,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 223 transitions, 481 flow [2022-11-16 12:37:48,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 729 transitions. [2022-11-16 12:37:48,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8741007194244604 [2022-11-16 12:37:48,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 729 transitions. [2022-11-16 12:37:48,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 729 transitions. [2022-11-16 12:37:48,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:48,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 729 transitions. [2022-11-16 12:37:48,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.0) internal successors, (729), 3 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,137 INFO L175 Difference]: Start difference. First operand has 226 places, 222 transitions, 452 flow. Second operand 3 states and 729 transitions. [2022-11-16 12:37:48,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 223 transitions, 481 flow [2022-11-16 12:37:48,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 223 transitions, 477 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:48,153 INFO L231 Difference]: Finished difference. Result has 222 places, 222 transitions, 458 flow [2022-11-16 12:37:48,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=222, PETRI_TRANSITIONS=222} [2022-11-16 12:37:48,154 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -15 predicate places. [2022-11-16 12:37:48,155 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 222 transitions, 458 flow [2022-11-16 12:37:48,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:48,157 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] [2022-11-16 12:37:48,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:37:48,158 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:48,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:48,161 INFO L85 PathProgramCache]: Analyzing trace with hash 591563296, now seen corresponding path program 1 times [2022-11-16 12:37:48,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:48,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052056176] [2022-11-16 12:37:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:48,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:48,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:48,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052056176] [2022-11-16 12:37:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052056176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:48,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:48,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707175442] [2022-11-16 12:37:48,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:48,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:48,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:48,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:48,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:48,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 278 [2022-11-16 12:37:48,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 222 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:48,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 278 [2022-11-16 12:37:48,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:48,527 INFO L130 PetriNetUnfolder]: 136/626 cut-off events. [2022-11-16 12:37:48,527 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:37:48,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 626 events. 136/626 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3570 event pairs, 76 based on Foata normal form. 1/571 useless extension candidates. Maximal degree in co-relation 721. Up to 243 conditions per place. [2022-11-16 12:37:48,535 INFO L137 encePairwiseOnDemand]: 262/278 looper letters, 17 selfloop transitions, 7 changer transitions 8/223 dead transitions. [2022-11-16 12:37:48,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 223 transitions, 518 flow [2022-11-16 12:37:48,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:48,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 705 transitions. [2022-11-16 12:37:48,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8453237410071942 [2022-11-16 12:37:48,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 705 transitions. [2022-11-16 12:37:48,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 705 transitions. [2022-11-16 12:37:48,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:48,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 705 transitions. [2022-11-16 12:37:48,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.0) internal successors, (705), 3 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,546 INFO L175 Difference]: Start difference. First operand has 222 places, 222 transitions, 458 flow. Second operand 3 states and 705 transitions. [2022-11-16 12:37:48,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 223 transitions, 518 flow [2022-11-16 12:37:48,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 223 transitions, 518 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:48,553 INFO L231 Difference]: Finished difference. Result has 217 places, 213 transitions, 470 flow [2022-11-16 12:37:48,553 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=217, PETRI_TRANSITIONS=213} [2022-11-16 12:37:48,555 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -20 predicate places. [2022-11-16 12:37:48,555 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 213 transitions, 470 flow [2022-11-16 12:37:48,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:48,556 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] [2022-11-16 12:37:48,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:37:48,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:48,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -827303656, now seen corresponding path program 1 times [2022-11-16 12:37:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:48,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96454362] [2022-11-16 12:37:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:48,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:48,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96454362] [2022-11-16 12:37:48,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96454362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:48,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:48,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619533605] [2022-11-16 12:37:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:48,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:48,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:48,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 278 [2022-11-16 12:37:48,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 213 transitions, 470 flow. Second operand has 3 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) [2022-11-16 12:37:48,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:48,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 278 [2022-11-16 12:37:48,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:48,867 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([748] 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][119], [265#true, 61#L1819-3true, 262#(= |#race~end_time~0| 0), 96#L1803-3true, Black: 260#true, 218#L1847-3true, 270#true]) [2022-11-16 12:37:48,867 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 12:37:48,868 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-16 12:37:48,868 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 12:37:48,868 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-16 12:37:48,871 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([692] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][112], [265#true, 61#L1819-3true, 262#(= |#race~end_time~0| 0), Black: 260#true, 96#L1803-3true, 218#L1847-3true, 270#true]) [2022-11-16 12:37:48,872 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 12:37:48,872 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-16 12:37:48,872 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 12:37:48,872 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 12:37:48,911 INFO L130 PetriNetUnfolder]: 129/1068 cut-off events. [2022-11-16 12:37:48,911 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 12:37:48,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1366 conditions, 1068 events. 129/1068 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6788 event pairs, 16 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 1180. Up to 142 conditions per place. [2022-11-16 12:37:48,925 INFO L137 encePairwiseOnDemand]: 272/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/219 dead transitions. [2022-11-16 12:37:48,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 219 transitions, 520 flow [2022-11-16 12:37:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:48,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:48,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2022-11-16 12:37:48,930 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8800959232613909 [2022-11-16 12:37:48,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2022-11-16 12:37:48,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2022-11-16 12:37:48,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:48,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2022-11-16 12:37:48,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:48,944 INFO L175 Difference]: Start difference. First operand has 217 places, 213 transitions, 470 flow. Second operand 3 states and 734 transitions. [2022-11-16 12:37:48,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 219 transitions, 520 flow [2022-11-16 12:37:48,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 219 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:48,951 INFO L231 Difference]: Finished difference. Result has 214 places, 215 transitions, 498 flow [2022-11-16 12:37:48,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=214, PETRI_TRANSITIONS=215} [2022-11-16 12:37:48,954 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -23 predicate places. [2022-11-16 12:37:48,954 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 215 transitions, 498 flow [2022-11-16 12:37:48,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-16 12:37:48,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:48,956 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] [2022-11-16 12:37:48,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:37:48,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:48,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:48,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1392502612, now seen corresponding path program 1 times [2022-11-16 12:37:48,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:48,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584084033] [2022-11-16 12:37:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:48,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:49,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584084033] [2022-11-16 12:37:49,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584084033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:49,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:49,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:49,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622013134] [2022-11-16 12:37:49,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:49,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:49,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:49,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:49,801 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:49,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 215 transitions, 498 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) [2022-11-16 12:37:49,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:49,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:49,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:50,026 INFO L130 PetriNetUnfolder]: 71/725 cut-off events. [2022-11-16 12:37:50,027 INFO L131 PetriNetUnfolder]: For 14/28 co-relation queries the response was YES. [2022-11-16 12:37:50,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 947 conditions, 725 events. 71/725 cut-off events. For 14/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3909 event pairs, 8 based on Foata normal form. 8/666 useless extension candidates. Maximal degree in co-relation 755. Up to 103 conditions per place. [2022-11-16 12:37:50,037 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 14 selfloop transitions, 4 changer transitions 0/214 dead transitions. [2022-11-16 12:37:50,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 214 transitions, 532 flow [2022-11-16 12:37:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:50,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:50,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1381 transitions. [2022-11-16 12:37:50,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8279376498800959 [2022-11-16 12:37:50,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1381 transitions. [2022-11-16 12:37:50,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1381 transitions. [2022-11-16 12:37:50,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:50,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1381 transitions. [2022-11-16 12:37:50,048 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) [2022-11-16 12:37:50,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:50,053 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:50,054 INFO L175 Difference]: Start difference. First operand has 214 places, 215 transitions, 498 flow. Second operand 6 states and 1381 transitions. [2022-11-16 12:37:50,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 214 transitions, 532 flow [2022-11-16 12:37:50,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 214 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:50,062 INFO L231 Difference]: Finished difference. Result has 216 places, 214 transitions, 496 flow [2022-11-16 12:37:50,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=496, PETRI_PLACES=216, PETRI_TRANSITIONS=214} [2022-11-16 12:37:50,066 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -21 predicate places. [2022-11-16 12:37:50,066 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 214 transitions, 496 flow [2022-11-16 12:37:50,067 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) [2022-11-16 12:37:50,067 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:50,068 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] [2022-11-16 12:37:50,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:37:50,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:50,070 INFO L85 PathProgramCache]: Analyzing trace with hash 361479192, now seen corresponding path program 1 times [2022-11-16 12:37:50,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:50,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208827552] [2022-11-16 12:37:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:50,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:50,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:50,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208827552] [2022-11-16 12:37:50,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208827552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:50,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:50,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:37:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631561195] [2022-11-16 12:37:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:50,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:37:50,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:37:50,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:37:50,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 278 [2022-11-16 12:37:50,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 214 transitions, 496 flow. Second operand has 3 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) [2022-11-16 12:37:50,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:50,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 278 [2022-11-16 12:37:50,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:50,386 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([748] 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][119], [265#true, Black: 272#(= |#race~counter~0| 0), 61#L1819-3true, 262#(= |#race~end_time~0| 0), 283#true, 96#L1803-3true, Black: 260#true, 276#true, 218#L1847-3true]) [2022-11-16 12:37:50,386 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 12:37:50,387 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-16 12:37:50,387 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 12:37:50,387 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-16 12:37:50,392 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([692] L1819-2-->L1819-3: Formula: (= |v_#race~end_time~0_1| 0) InVars {} OutVars{#race~end_time~0=|v_#race~end_time~0_1|} AuxVars[] AssignedVars[#race~end_time~0][112], [265#true, Black: 272#(= |#race~counter~0| 0), 61#L1819-3true, 262#(= |#race~end_time~0| 0), 283#true, 96#L1803-3true, Black: 260#true, 276#true, 218#L1847-3true]) [2022-11-16 12:37:50,393 INFO L383 tUnfolder$Statistics]: this new event has 132 ancestors and is cut-off event [2022-11-16 12:37:50,393 INFO L386 tUnfolder$Statistics]: existing Event has 83 ancestors and is cut-off event [2022-11-16 12:37:50,393 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-16 12:37:50,393 INFO L386 tUnfolder$Statistics]: existing Event has 113 ancestors and is cut-off event [2022-11-16 12:37:50,491 INFO L130 PetriNetUnfolder]: 148/1266 cut-off events. [2022-11-16 12:37:50,491 INFO L131 PetriNetUnfolder]: For 44/54 co-relation queries the response was YES. [2022-11-16 12:37:50,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1266 events. 148/1266 cut-off events. For 44/54 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8719 event pairs, 21 based on Foata normal form. 2/1149 useless extension candidates. Maximal degree in co-relation 1494. Up to 165 conditions per place. [2022-11-16 12:37:50,505 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 19 selfloop transitions, 5 changer transitions 0/222 dead transitions. [2022-11-16 12:37:50,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 222 transitions, 571 flow [2022-11-16 12:37:50,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:37:50,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:37:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 728 transitions. [2022-11-16 12:37:50,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8729016786570744 [2022-11-16 12:37:50,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 728 transitions. [2022-11-16 12:37:50,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 728 transitions. [2022-11-16 12:37:50,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:50,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 728 transitions. [2022-11-16 12:37:50,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.66666666666666) internal successors, (728), 3 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:50,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:50,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:50,521 INFO L175 Difference]: Start difference. First operand has 216 places, 214 transitions, 496 flow. Second operand 3 states and 728 transitions. [2022-11-16 12:37:50,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 222 transitions, 571 flow [2022-11-16 12:37:50,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 222 transitions, 564 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:37:50,529 INFO L231 Difference]: Finished difference. Result has 216 places, 218 transitions, 531 flow [2022-11-16 12:37:50,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=216, PETRI_TRANSITIONS=218} [2022-11-16 12:37:50,532 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -21 predicate places. [2022-11-16 12:37:50,533 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 218 transitions, 531 flow [2022-11-16 12:37:50,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-11-16 12:37:50,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:50,535 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] [2022-11-16 12:37:50,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:37:50,536 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:50,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash -892787350, now seen corresponding path program 1 times [2022-11-16 12:37:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:50,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160039024] [2022-11-16 12:37:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:50,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:51,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:51,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160039024] [2022-11-16 12:37:51,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160039024] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:51,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:51,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108819378] [2022-11-16 12:37:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:51,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:37:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:37:51,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:37:51,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:51,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 218 transitions, 531 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) [2022-11-16 12:37:51,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:51,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:51,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:51,596 INFO L130 PetriNetUnfolder]: 106/897 cut-off events. [2022-11-16 12:37:51,596 INFO L131 PetriNetUnfolder]: For 54/75 co-relation queries the response was YES. [2022-11-16 12:37:51,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 897 events. 106/897 cut-off events. For 54/75 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5307 event pairs, 8 based on Foata normal form. 2/815 useless extension candidates. Maximal degree in co-relation 1020. Up to 134 conditions per place. [2022-11-16 12:37:51,608 INFO L137 encePairwiseOnDemand]: 273/278 looper letters, 13 selfloop transitions, 4 changer transitions 0/217 dead transitions. [2022-11-16 12:37:51,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 217 transitions, 563 flow [2022-11-16 12:37:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:51,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2022-11-16 12:37:51,614 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273381294964028 [2022-11-16 12:37:51,614 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2022-11-16 12:37:51,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2022-11-16 12:37:51,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:51,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2022-11-16 12:37:51,619 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) [2022-11-16 12:37:51,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:51,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:51,624 INFO L175 Difference]: Start difference. First operand has 216 places, 218 transitions, 531 flow. Second operand 6 states and 1380 transitions. [2022-11-16 12:37:51,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 217 transitions, 563 flow [2022-11-16 12:37:51,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 217 transitions, 553 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:37:51,631 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 527 flow [2022-11-16 12:37:51,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=527, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2022-11-16 12:37:51,632 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -19 predicate places. [2022-11-16 12:37:51,633 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 527 flow [2022-11-16 12:37:51,634 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) [2022-11-16 12:37:51,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:51,634 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:51,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:37:51,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:51,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:51,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1488601298, now seen corresponding path program 1 times [2022-11-16 12:37:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:51,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553058942] [2022-11-16 12:37:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:51,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:52,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:52,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553058942] [2022-11-16 12:37:52,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553058942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:52,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:52,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:52,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309965693] [2022-11-16 12:37:52,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:52,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:37:52,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:52,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:37:52,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:37:52,021 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:52,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 527 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:52,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:52,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:52,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:52,668 INFO L130 PetriNetUnfolder]: 338/2647 cut-off events. [2022-11-16 12:37:52,669 INFO L131 PetriNetUnfolder]: For 79/87 co-relation queries the response was YES. [2022-11-16 12:37:52,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3730 conditions, 2647 events. 338/2647 cut-off events. For 79/87 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 23603 event pairs, 47 based on Foata normal form. 2/2432 useless extension candidates. Maximal degree in co-relation 3606. Up to 273 conditions per place. [2022-11-16 12:37:52,699 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 37 selfloop transitions, 23 changer transitions 3/257 dead transitions. [2022-11-16 12:37:52,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 257 transitions, 737 flow [2022-11-16 12:37:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:37:52,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:37:52,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2108 transitions. [2022-11-16 12:37:52,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8425259792166268 [2022-11-16 12:37:52,706 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2108 transitions. [2022-11-16 12:37:52,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2108 transitions. [2022-11-16 12:37:52,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:52,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2108 transitions. [2022-11-16 12:37:52,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 234.22222222222223) internal successors, (2108), 9 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:52,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:52,721 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 278.0) internal successors, (2780), 10 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:52,722 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 527 flow. Second operand 9 states and 2108 transitions. [2022-11-16 12:37:52,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 257 transitions, 737 flow [2022-11-16 12:37:52,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 257 transitions, 730 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:37:52,729 INFO L231 Difference]: Finished difference. Result has 230 places, 239 transitions, 690 flow [2022-11-16 12:37:52,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=690, PETRI_PLACES=230, PETRI_TRANSITIONS=239} [2022-11-16 12:37:52,731 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, -7 predicate places. [2022-11-16 12:37:52,731 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 239 transitions, 690 flow [2022-11-16 12:37:52,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:52,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:52,732 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:52,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:37:52,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:52,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1313838744, now seen corresponding path program 2 times [2022-11-16 12:37:52,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:52,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178701971] [2022-11-16 12:37:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:52,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:53,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178701971] [2022-11-16 12:37:53,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178701971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:53,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:53,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290872218] [2022-11-16 12:37:53,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:53,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:37:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:53,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:37:53,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:37:53,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:53,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 239 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:53,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:53,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:53,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:53,927 INFO L130 PetriNetUnfolder]: 405/3372 cut-off events. [2022-11-16 12:37:53,927 INFO L131 PetriNetUnfolder]: For 930/1026 co-relation queries the response was YES. [2022-11-16 12:37:53,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5409 conditions, 3372 events. 405/3372 cut-off events. For 930/1026 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 32729 event pairs, 37 based on Foata normal form. 28/3177 useless extension candidates. Maximal degree in co-relation 5112. Up to 351 conditions per place. [2022-11-16 12:37:53,969 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 44 selfloop transitions, 33 changer transitions 3/274 dead transitions. [2022-11-16 12:37:53,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 274 transitions, 1021 flow [2022-11-16 12:37:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:37:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:37:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1418 transitions. [2022-11-16 12:37:53,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8501199040767387 [2022-11-16 12:37:53,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1418 transitions. [2022-11-16 12:37:53,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1418 transitions. [2022-11-16 12:37:53,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:53,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1418 transitions. [2022-11-16 12:37:53,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:53,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:53,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 278.0) internal successors, (1946), 7 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:53,988 INFO L175 Difference]: Start difference. First operand has 230 places, 239 transitions, 690 flow. Second operand 6 states and 1418 transitions. [2022-11-16 12:37:53,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 274 transitions, 1021 flow [2022-11-16 12:37:53,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 274 transitions, 1021 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:54,003 INFO L231 Difference]: Finished difference. Result has 240 places, 260 transitions, 960 flow [2022-11-16 12:37:54,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=240, PETRI_TRANSITIONS=260} [2022-11-16 12:37:54,005 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, 3 predicate places. [2022-11-16 12:37:54,005 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 260 transitions, 960 flow [2022-11-16 12:37:54,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:54,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:54,007 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:54,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:37:54,008 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:54,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:54,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1060778754, now seen corresponding path program 3 times [2022-11-16 12:37:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:54,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001797398] [2022-11-16 12:37:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:54,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:54,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:54,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001797398] [2022-11-16 12:37:54,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001797398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:54,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:54,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:54,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784225484] [2022-11-16 12:37:54,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:37:54,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:54,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:37:54,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:37:54,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:54,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 260 transitions, 960 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:54,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:54,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:54,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:55,477 INFO L130 PetriNetUnfolder]: 500/4079 cut-off events. [2022-11-16 12:37:55,477 INFO L131 PetriNetUnfolder]: For 3067/3257 co-relation queries the response was YES. [2022-11-16 12:37:55,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7255 conditions, 4079 events. 500/4079 cut-off events. For 3067/3257 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 41491 event pairs, 39 based on Foata normal form. 68/3868 useless extension candidates. Maximal degree in co-relation 6923. Up to 424 conditions per place. [2022-11-16 12:37:55,537 INFO L137 encePairwiseOnDemand]: 265/278 looper letters, 47 selfloop transitions, 68 changer transitions 3/312 dead transitions. [2022-11-16 12:37:55,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 312 transitions, 1556 flow [2022-11-16 12:37:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:37:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:37:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1662 transitions. [2022-11-16 12:37:55,551 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8540596094552929 [2022-11-16 12:37:55,551 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1662 transitions. [2022-11-16 12:37:55,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1662 transitions. [2022-11-16 12:37:55,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:55,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1662 transitions. [2022-11-16 12:37:55,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 237.42857142857142) internal successors, (1662), 7 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:55,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 278.0) internal successors, (2224), 8 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:55,565 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 278.0) internal successors, (2224), 8 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:55,565 INFO L175 Difference]: Start difference. First operand has 240 places, 260 transitions, 960 flow. Second operand 7 states and 1662 transitions. [2022-11-16 12:37:55,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 312 transitions, 1556 flow [2022-11-16 12:37:55,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 312 transitions, 1540 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-11-16 12:37:55,586 INFO L231 Difference]: Finished difference. Result has 252 places, 295 transitions, 1547 flow [2022-11-16 12:37:55,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1547, PETRI_PLACES=252, PETRI_TRANSITIONS=295} [2022-11-16 12:37:55,588 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, 15 predicate places. [2022-11-16 12:37:55,589 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 295 transitions, 1547 flow [2022-11-16 12:37:55,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:55,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:37:55,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:55,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:37:55,591 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-11-16 12:37:55,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:37:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash -831444200, now seen corresponding path program 4 times [2022-11-16 12:37:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:37:55,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467749995] [2022-11-16 12:37:55,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:37:55,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:37:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:37:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:37:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:37:55,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467749995] [2022-11-16 12:37:55,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467749995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:37:55,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:37:55,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:37:55,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37114493] [2022-11-16 12:37:55,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:37:55,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:37:55,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:37:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:37:55,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:37:55,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 278 [2022-11-16 12:37:55,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 295 transitions, 1547 flow. Second operand has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:55,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:37:55,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 278 [2022-11-16 12:37:55,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:37:56,820 INFO L130 PetriNetUnfolder]: 368/2989 cut-off events. [2022-11-16 12:37:56,823 INFO L131 PetriNetUnfolder]: For 5166/5494 co-relation queries the response was YES. [2022-11-16 12:37:56,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5820 conditions, 2989 events. 368/2989 cut-off events. For 5166/5494 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 27902 event pairs, 47 based on Foata normal form. 75/2854 useless extension candidates. Maximal degree in co-relation 5461. Up to 316 conditions per place. [2022-11-16 12:37:56,858 INFO L137 encePairwiseOnDemand]: 268/278 looper letters, 0 selfloop transitions, 0 changer transitions 299/299 dead transitions. [2022-11-16 12:37:56,858 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 299 transitions, 1814 flow [2022-11-16 12:37:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:37:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 12:37:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1654 transitions. [2022-11-16 12:37:56,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8499486125385406 [2022-11-16 12:37:56,865 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1654 transitions. [2022-11-16 12:37:56,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1654 transitions. [2022-11-16 12:37:56,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:37:56,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1654 transitions. [2022-11-16 12:37:56,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 236.28571428571428) internal successors, (1654), 7 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:56,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 278.0) internal successors, (2224), 8 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:56,879 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 278.0) internal successors, (2224), 8 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:56,879 INFO L175 Difference]: Start difference. First operand has 252 places, 295 transitions, 1547 flow. Second operand 7 states and 1654 transitions. [2022-11-16 12:37:56,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 299 transitions, 1814 flow [2022-11-16 12:37:56,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 299 transitions, 1670 flow, removed 25 selfloop flow, removed 5 redundant places. [2022-11-16 12:37:56,912 INFO L231 Difference]: Finished difference. Result has 251 places, 0 transitions, 0 flow [2022-11-16 12:37:56,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1271, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=251, PETRI_TRANSITIONS=0} [2022-11-16 12:37:56,913 INFO L288 CegarLoopForPetriNet]: 237 programPoint places, 14 predicate places. [2022-11-16 12:37:56,914 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 0 transitions, 0 flow [2022-11-16 12:37:56,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 230.0) internal successors, (1150), 5 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:37:56,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-11-16 12:37:56,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-11-16 12:37:56,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-11-16 12:37:56,919 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-11-16 12:37:56,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-11-16 12:37:56,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-11-16 12:37:56,920 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-11-16 12:37:56,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-11-16 12:37:56,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-11-16 12:37:56,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-11-16 12:37:56,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-11-16 12:37:56,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-11-16 12:37:56,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-11-16 12:37:56,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-11-16 12:37:56,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-11-16 12:37:56,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-11-16 12:37:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2022-11-16 12:37:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2022-11-16 12:37:56,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-11-16 12:37:56,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-11-16 12:37:56,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2022-11-16 12:37:56,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-11-16 12:37:56,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-11-16 12:37:56,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-11-16 12:37:56,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-11-16 12:37:56,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-11-16 12:37:56,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-11-16 12:37:56,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:37:56,935 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:37:56,942 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:37:56,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:37:56,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:37:56 BasicIcfg [2022-11-16 12:37:56,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:37:56,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:37:56,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:37:56,950 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:37:56,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:37:46" (3/4) ... [2022-11-16 12:37:56,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:37:56,963 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2022-11-16 12:37:56,963 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2022-11-16 12:37:56,972 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2022-11-16 12:37:56,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:37:56,973 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:37:56,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:37:56,974 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:37:57,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:37:57,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:37:57,041 INFO L158 Benchmark]: Toolchain (without parser) took 13335.91ms. Allocated memory was 148.9MB in the beginning and 381.7MB in the end (delta: 232.8MB). Free memory was 112.2MB in the beginning and 252.5MB in the end (delta: -140.3MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,042 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 60.0MB in the beginning and 59.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:37:57,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1318.16ms. Allocated memory is still 148.9MB. Free memory was 112.2MB in the beginning and 77.8MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.71ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 74.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,043 INFO L158 Benchmark]: Boogie Preprocessor took 99.55ms. Allocated memory is still 148.9MB. Free memory was 74.6MB in the beginning and 71.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,043 INFO L158 Benchmark]: RCFGBuilder took 1010.06ms. Allocated memory is still 148.9MB. Free memory was 70.5MB in the beginning and 115.9MB in the end (delta: -45.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,044 INFO L158 Benchmark]: TraceAbstraction took 10701.39ms. Allocated memory was 148.9MB in the beginning and 381.7MB in the end (delta: 232.8MB). Free memory was 114.9MB in the beginning and 255.6MB in the end (delta: -140.8MB). Peak memory consumption was 181.1MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,045 INFO L158 Benchmark]: Witness Printer took 90.05ms. Allocated memory is still 381.7MB. Free memory was 255.6MB in the beginning and 252.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:37:57,048 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory was 60.0MB in the beginning and 59.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1318.16ms. Allocated memory is still 148.9MB. Free memory was 112.2MB in the beginning and 77.8MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.71ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 74.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.55ms. Allocated memory is still 148.9MB. Free memory was 74.6MB in the beginning and 71.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1010.06ms. Allocated memory is still 148.9MB. Free memory was 70.5MB in the beginning and 115.9MB in the end (delta: -45.4MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10701.39ms. Allocated memory was 148.9MB in the beginning and 381.7MB in the end (delta: 232.8MB). Free memory was 114.9MB in the beginning and 255.6MB in the end (delta: -140.8MB). Peak memory consumption was 181.1MB. Max. memory is 16.1GB. * Witness Printer took 90.05ms. Allocated memory is still 381.7MB. Free memory was 255.6MB in the beginning and 252.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1850]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1853]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 352 locations, 27 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: 10.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 174 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1547occurred in iteration=10, InterpolantAutomatonStates: 56, 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, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 979 ConstructedInterpolants, 0 QuantifiedInterpolants, 1547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:37:57,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646b9325-507d-4a2f-97cb-8a089f109f45/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE