./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c --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_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/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_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/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_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/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 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c --- 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 12:20:20,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:20:20,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:20:20,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:20:20,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:20:20,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:20:20,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:20:20,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:20:20,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:20:20,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:20:20,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:20:20,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:20:20,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:20:20,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:20:20,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:20:20,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:20:20,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:20:20,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:20:20,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:20:20,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:20:20,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:20:20,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:20:20,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:20:20,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:20:20,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:20:20,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:20:20,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:20:20,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:20:20,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:20:20,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:20:20,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:20:20,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:20:20,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:20:20,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:20:20,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:20:20,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:20:20,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:20:20,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:20:20,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:20:20,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:20:20,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:20:20,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:20:20,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:20:20,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:20:20,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:20:20,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:20:20,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:20:20,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:20:20,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:20:20,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:20:20,465 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:20:20,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:20:20,467 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:20:20,467 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:20:20,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:20:20,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:20:20,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:20:20,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:20:20,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:20:20,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:20:20,469 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:20:20,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:20:20,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:20:20,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:20:20,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:20:20,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:20:20,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:20:20,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:20:20,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:20,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:20:20,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:20:20,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:20:20,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:20:20,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:20:20,473 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:20:20,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:20:20,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:20:20,474 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_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039f5312b62da5ff616f0ade8cc5a2dd494698e7519842b003d8d55f65a5fe6c [2022-11-16 12:20:20,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:20:20,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:20:20,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:20:20,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:20:20,811 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:20:20,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-sre-subst.wvr.c [2022-11-16 12:20:20,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/data/4d0294c4e/7cef95b6c772426bbd8ccc64a130b13c/FLAG75ce3eaa4 [2022-11-16 12:20:21,340 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:20:21,341 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c [2022-11-16 12:20:21,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/data/4d0294c4e/7cef95b6c772426bbd8ccc64a130b13c/FLAG75ce3eaa4 [2022-11-16 12:20:21,702 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/data/4d0294c4e/7cef95b6c772426bbd8ccc64a130b13c [2022-11-16 12:20:21,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:20:21,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:20:21,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:21,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:20:21,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:20:21,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:21" (1/1) ... [2022-11-16 12:20:21,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57380a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:21, skipping insertion in model container [2022-11-16 12:20:21,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:21" (1/1) ... [2022-11-16 12:20:21,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:20:21,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:20:21,982 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-11-16 12:20:21,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:21,993 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:20:22,022 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/sv-benchmarks/c/weaver/chl-sre-subst.wvr.c[2333,2346] [2022-11-16 12:20:22,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:22,039 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:20:22,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22 WrapperNode [2022-11-16 12:20:22,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:22,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:22,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:20:22,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:20:22,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,113 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 115 [2022-11-16 12:20:22,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:22,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:20:22,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:20:22,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:20:22,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:20:22,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:20:22,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:20:22,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:20:22,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (1/1) ... [2022-11-16 12:20:22,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:22,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:20:22,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:20:22,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:20:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:20:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:20:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:20:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:20:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:20:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:20:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:20:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:20:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:20:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:20:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:20:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:20:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:20:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:20:22,291 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 12:20:22,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:20:22,426 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:20:22,809 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:20:22,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:20:22,820 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:20:22,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:22 BoogieIcfgContainer [2022-11-16 12:20:22,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:20:22,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:20:22,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:20:22,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:20:22,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:21" (1/3) ... [2022-11-16 12:20:22,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a079a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:22, skipping insertion in model container [2022-11-16 12:20:22,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:22" (2/3) ... [2022-11-16 12:20:22,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a079a2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:22, skipping insertion in model container [2022-11-16 12:20:22,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:22" (3/3) ... [2022-11-16 12:20:22,833 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2022-11-16 12:20:22,842 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:20:22,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:20:22,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2022-11-16 12:20:22,863 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:20:23,032 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:20:23,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 203 transitions, 430 flow [2022-11-16 12:20:23,185 INFO L130 PetriNetUnfolder]: 6/200 cut-off events. [2022-11-16 12:20:23,185 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:20:23,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 200 events. 6/200 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 258 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 112. Up to 2 conditions per place. [2022-11-16 12:20:23,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 203 transitions, 430 flow [2022-11-16 12:20:23,202 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 177 transitions, 372 flow [2022-11-16 12:20:23,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:20:23,220 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;@45ef6f01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:20:23,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-16 12:20:23,228 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-16 12:20:23,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:23,229 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:23,229 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] [2022-11-16 12:20:23,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:23,236 INFO L85 PathProgramCache]: Analyzing trace with hash 937854472, now seen corresponding path program 1 times [2022-11-16 12:20:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:23,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386990121] [2022-11-16 12:20:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:23,517 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 12:20:23,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:23,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386990121] [2022-11-16 12:20:23,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386990121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:23,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:23,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932216939] [2022-11-16 12:20:23,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:23,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:23,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:23,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:23,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:23,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 203 [2022-11-16 12:20:23,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:23,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 203 [2022-11-16 12:20:23,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:23,799 INFO L130 PetriNetUnfolder]: 52/434 cut-off events. [2022-11-16 12:20:23,799 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-16 12:20:23,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 434 events. 52/434 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1985 event pairs, 39 based on Foata normal form. 1/333 useless extension candidates. Maximal degree in co-relation 432. Up to 85 conditions per place. [2022-11-16 12:20:23,809 INFO L137 encePairwiseOnDemand]: 199/203 looper letters, 15 selfloop transitions, 2 changer transitions 1/175 dead transitions. [2022-11-16 12:20:23,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 175 transitions, 402 flow [2022-11-16 12:20:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2022-11-16 12:20:23,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9277504105090312 [2022-11-16 12:20:23,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2022-11-16 12:20:23,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2022-11-16 12:20:23,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:23,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2022-11-16 12:20:23,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:20:23,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:23,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:23,851 INFO L175 Difference]: Start difference. First operand has 183 places, 177 transitions, 372 flow. Second operand 3 states and 565 transitions. [2022-11-16 12:20:23,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 175 transitions, 402 flow [2022-11-16 12:20:23,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 175 transitions, 390 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:20:23,860 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 358 flow [2022-11-16 12:20:23,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2022-11-16 12:20:23,872 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -5 predicate places. [2022-11-16 12:20:23,873 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 358 flow [2022-11-16 12:20:23,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:23,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:23,874 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:23,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:20:23,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash 865131297, now seen corresponding path program 1 times [2022-11-16 12:20:23,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:23,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502474315] [2022-11-16 12:20:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:23,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:24,010 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 12:20:24,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:24,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502474315] [2022-11-16 12:20:24,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502474315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595081934] [2022-11-16 12:20:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:24,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:24,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:24,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 203 [2022-11-16 12:20:24,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 12:20:24,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:24,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 203 [2022-11-16 12:20:24,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:24,194 INFO L130 PetriNetUnfolder]: 49/423 cut-off events. [2022-11-16 12:20:24,194 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 12:20:24,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 535 conditions, 423 events. 49/423 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1754 event pairs, 36 based on Foata normal form. 0/334 useless extension candidates. Maximal degree in co-relation 502. Up to 91 conditions per place. [2022-11-16 12:20:24,204 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 18 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:20:24,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 396 flow [2022-11-16 12:20:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:24,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2022-11-16 12:20:24,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.916256157635468 [2022-11-16 12:20:24,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2022-11-16 12:20:24,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2022-11-16 12:20:24,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:24,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2022-11-16 12:20:24,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states 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 12:20:24,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,218 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,218 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 358 flow. Second operand 3 states and 558 transitions. [2022-11-16 12:20:24,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 396 flow [2022-11-16 12:20:24,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:24,226 INFO L231 Difference]: Finished difference. Result has 176 places, 173 transitions, 356 flow [2022-11-16 12:20:24,227 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=176, PETRI_TRANSITIONS=173} [2022-11-16 12:20:24,228 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -7 predicate places. [2022-11-16 12:20:24,229 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 173 transitions, 356 flow [2022-11-16 12:20:24,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 12:20:24,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:24,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:24,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:20:24,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:24,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1336131272, now seen corresponding path program 1 times [2022-11-16 12:20:24,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:24,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992507551] [2022-11-16 12:20:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:24,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:24,284 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 12:20:24,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:24,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992507551] [2022-11-16 12:20:24,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992507551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:24,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842587282] [2022-11-16 12:20:24,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:24,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:24,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:24,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2022-11-16 12:20:24,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 173 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:24,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2022-11-16 12:20:24,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:24,445 INFO L130 PetriNetUnfolder]: 152/621 cut-off events. [2022-11-16 12:20:24,445 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-16 12:20:24,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 621 events. 152/621 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3596 event pairs, 132 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 847. Up to 250 conditions per place. [2022-11-16 12:20:24,456 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 21 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2022-11-16 12:20:24,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 172 transitions, 400 flow [2022-11-16 12:20:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2022-11-16 12:20:24,484 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9064039408866995 [2022-11-16 12:20:24,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2022-11-16 12:20:24,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2022-11-16 12:20:24,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:24,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2022-11-16 12:20:24,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states 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 12:20:24,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,488 INFO L175 Difference]: Start difference. First operand has 176 places, 173 transitions, 356 flow. Second operand 3 states and 552 transitions. [2022-11-16 12:20:24,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 172 transitions, 400 flow [2022-11-16 12:20:24,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:24,493 INFO L231 Difference]: Finished difference. Result has 175 places, 172 transitions, 354 flow [2022-11-16 12:20:24,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2022-11-16 12:20:24,494 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -8 predicate places. [2022-11-16 12:20:24,494 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 354 flow [2022-11-16 12:20:24,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:24,495 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] [2022-11-16 12:20:24,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:20:24,495 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash -764348037, now seen corresponding path program 1 times [2022-11-16 12:20:24,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:24,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346342317] [2022-11-16 12:20:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:24,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:24,593 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 12:20:24,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:24,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346342317] [2022-11-16 12:20:24,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346342317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:24,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837340998] [2022-11-16 12:20:24,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:24,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:24,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 203 [2022-11-16 12:20:24,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:24,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 203 [2022-11-16 12:20:24,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:24,686 INFO L130 PetriNetUnfolder]: 33/425 cut-off events. [2022-11-16 12:20:24,686 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:20:24,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 425 events. 33/425 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2026 event pairs, 13 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 445. Up to 43 conditions per place. [2022-11-16 12:20:24,692 INFO L137 encePairwiseOnDemand]: 199/203 looper letters, 14 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-11-16 12:20:24,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 174 transitions, 392 flow [2022-11-16 12:20:24,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 573 transitions. [2022-11-16 12:20:24,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9408866995073891 [2022-11-16 12:20:24,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 573 transitions. [2022-11-16 12:20:24,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 573 transitions. [2022-11-16 12:20:24,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:24,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 573 transitions. [2022-11-16 12:20:24,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,700 INFO L175 Difference]: Start difference. First operand has 175 places, 172 transitions, 354 flow. Second operand 3 states and 573 transitions. [2022-11-16 12:20:24,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 174 transitions, 392 flow [2022-11-16 12:20:24,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 174 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:24,705 INFO L231 Difference]: Finished difference. Result has 174 places, 172 transitions, 360 flow [2022-11-16 12:20:24,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=174, PETRI_TRANSITIONS=172} [2022-11-16 12:20:24,707 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -9 predicate places. [2022-11-16 12:20:24,707 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 172 transitions, 360 flow [2022-11-16 12:20:24,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:24,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:24,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:20:24,709 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash -99041251, now seen corresponding path program 1 times [2022-11-16 12:20:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:24,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652885512] [2022-11-16 12:20:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:24,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:24,768 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 12:20:24,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:24,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652885512] [2022-11-16 12:20:24,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652885512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:24,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:24,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:24,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741847578] [2022-11-16 12:20:24,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:24,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:24,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:24,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:24,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:24,775 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 203 [2022-11-16 12:20:24,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 172 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states 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 12:20:24,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:24,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 203 [2022-11-16 12:20:24,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:24,878 INFO L130 PetriNetUnfolder]: 33/369 cut-off events. [2022-11-16 12:20:24,878 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 12:20:24,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 369 events. 33/369 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1391 event pairs, 10 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 365. Up to 49 conditions per place. [2022-11-16 12:20:24,884 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 16 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:20:24,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 173 transitions, 400 flow [2022-11-16 12:20:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2022-11-16 12:20:24,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2022-11-16 12:20:24,888 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 567 transitions. [2022-11-16 12:20:24,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 567 transitions. [2022-11-16 12:20:24,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:24,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 567 transitions. [2022-11-16 12:20:24,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:24,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,893 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:24,894 INFO L175 Difference]: Start difference. First operand has 174 places, 172 transitions, 360 flow. Second operand 3 states and 567 transitions. [2022-11-16 12:20:24,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 173 transitions, 400 flow [2022-11-16 12:20:24,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 173 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:20:24,899 INFO L231 Difference]: Finished difference. Result has 174 places, 171 transitions, 368 flow [2022-11-16 12:20:24,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=174, PETRI_TRANSITIONS=171} [2022-11-16 12:20:24,903 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -9 predicate places. [2022-11-16 12:20:24,904 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 171 transitions, 368 flow [2022-11-16 12:20:24,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states 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 12:20:24,905 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:24,905 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:24,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:20:24,906 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:24,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:24,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1336411298, now seen corresponding path program 1 times [2022-11-16 12:20:24,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:24,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234557278] [2022-11-16 12:20:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:25,011 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 12:20:25,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:25,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234557278] [2022-11-16 12:20:25,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234557278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:25,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:25,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:25,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401184691] [2022-11-16 12:20:25,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:25,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:25,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:25,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:25,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:25,015 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 203 [2022-11-16 12:20:25,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 171 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:25,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 203 [2022-11-16 12:20:25,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:25,158 INFO L130 PetriNetUnfolder]: 132/740 cut-off events. [2022-11-16 12:20:25,158 INFO L131 PetriNetUnfolder]: For 31/47 co-relation queries the response was YES. [2022-11-16 12:20:25,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 740 events. 132/740 cut-off events. For 31/47 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4639 event pairs, 80 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 725. Up to 202 conditions per place. [2022-11-16 12:20:25,166 INFO L137 encePairwiseOnDemand]: 197/203 looper letters, 18 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2022-11-16 12:20:25,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 171 transitions, 410 flow [2022-11-16 12:20:25,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2022-11-16 12:20:25,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9211822660098522 [2022-11-16 12:20:25,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 561 transitions. [2022-11-16 12:20:25,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 561 transitions. [2022-11-16 12:20:25,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:25,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 561 transitions. [2022-11-16 12:20:25,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.0) internal successors, (561), 3 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 12:20:25,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,174 INFO L175 Difference]: Start difference. First operand has 174 places, 171 transitions, 368 flow. Second operand 3 states and 561 transitions. [2022-11-16 12:20:25,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 171 transitions, 410 flow [2022-11-16 12:20:25,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 171 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:20:25,178 INFO L231 Difference]: Finished difference. Result has 173 places, 169 transitions, 374 flow [2022-11-16 12:20:25,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2022-11-16 12:20:25,179 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -10 predicate places. [2022-11-16 12:20:25,179 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 374 flow [2022-11-16 12:20:25,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:25,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:25,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:20:25,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:25,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash -513675388, now seen corresponding path program 1 times [2022-11-16 12:20:25,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:25,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318547915] [2022-11-16 12:20:25,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:25,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:25,230 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 12:20:25,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:25,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318547915] [2022-11-16 12:20:25,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318547915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:25,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:25,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:25,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455592637] [2022-11-16 12:20:25,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:25,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:25,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:25,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 203 [2022-11-16 12:20:25,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:25,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 203 [2022-11-16 12:20:25,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:25,324 INFO L130 PetriNetUnfolder]: 25/348 cut-off events. [2022-11-16 12:20:25,325 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-16 12:20:25,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 348 events. 25/348 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1406 event pairs, 4 based on Foata normal form. 1/315 useless extension candidates. Maximal degree in co-relation 329. Up to 20 conditions per place. [2022-11-16 12:20:25,329 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 13 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-11-16 12:20:25,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 408 flow [2022-11-16 12:20:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:25,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2022-11-16 12:20:25,332 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9425287356321839 [2022-11-16 12:20:25,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2022-11-16 12:20:25,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2022-11-16 12:20:25,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:25,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2022-11-16 12:20:25,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 12:20:25,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,338 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 374 flow. Second operand 3 states and 574 transitions. [2022-11-16 12:20:25,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 408 flow [2022-11-16 12:20:25,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 170 transitions, 408 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:20:25,343 INFO L231 Difference]: Finished difference. Result has 174 places, 168 transitions, 376 flow [2022-11-16 12:20:25,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=174, PETRI_TRANSITIONS=168} [2022-11-16 12:20:25,344 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -9 predicate places. [2022-11-16 12:20:25,345 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 168 transitions, 376 flow [2022-11-16 12:20:25,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:25,345 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:25,346 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] [2022-11-16 12:20:25,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:20:25,346 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:25,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:25,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1363734085, now seen corresponding path program 1 times [2022-11-16 12:20:25,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:25,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075882771] [2022-11-16 12:20:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:25,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:25,444 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 12:20:25,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:25,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075882771] [2022-11-16 12:20:25,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075882771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:25,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:25,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176216027] [2022-11-16 12:20:25,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:25,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:25,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:25,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:25,450 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 203 [2022-11-16 12:20:25,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 168 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states 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 12:20:25,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:25,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 203 [2022-11-16 12:20:25,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:25,531 INFO L130 PetriNetUnfolder]: 29/371 cut-off events. [2022-11-16 12:20:25,532 INFO L131 PetriNetUnfolder]: For 7/10 co-relation queries the response was YES. [2022-11-16 12:20:25,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 371 events. 29/371 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1602 event pairs, 6 based on Foata normal form. 1/337 useless extension candidates. Maximal degree in co-relation 377. Up to 29 conditions per place. [2022-11-16 12:20:25,536 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 16 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2022-11-16 12:20:25,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 169 transitions, 416 flow [2022-11-16 12:20:25,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:25,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2022-11-16 12:20:25,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9326765188834154 [2022-11-16 12:20:25,539 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2022-11-16 12:20:25,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2022-11-16 12:20:25,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:25,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2022-11-16 12:20:25,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 12:20:25,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:25,543 INFO L175 Difference]: Start difference. First operand has 174 places, 168 transitions, 376 flow. Second operand 3 states and 568 transitions. [2022-11-16 12:20:25,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 169 transitions, 416 flow [2022-11-16 12:20:25,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 169 transitions, 412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:25,547 INFO L231 Difference]: Finished difference. Result has 173 places, 167 transitions, 374 flow [2022-11-16 12:20:25,548 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=173, PETRI_TRANSITIONS=167} [2022-11-16 12:20:25,549 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -10 predicate places. [2022-11-16 12:20:25,549 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 167 transitions, 374 flow [2022-11-16 12:20:25,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states 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 12:20:25,549 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:25,550 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] [2022-11-16 12:20:25,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:20:25,550 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:25,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash 880672252, now seen corresponding path program 1 times [2022-11-16 12:20:25,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:25,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903305968] [2022-11-16 12:20:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:25,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:25,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:25,974 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 12:20:25,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:25,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903305968] [2022-11-16 12:20:25,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903305968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:25,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:25,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:25,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207131904] [2022-11-16 12:20:25,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:25,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:25,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:25,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:25,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:25,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 203 [2022-11-16 12:20:25,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 167 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states 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 12:20:25,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:25,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 203 [2022-11-16 12:20:25,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:26,098 INFO L130 PetriNetUnfolder]: 13/253 cut-off events. [2022-11-16 12:20:26,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:26,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 253 events. 13/253 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 712 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 256. Up to 17 conditions per place. [2022-11-16 12:20:26,101 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 23 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2022-11-16 12:20:26,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 166 transitions, 426 flow [2022-11-16 12:20:26,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:26,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2022-11-16 12:20:26,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8604269293924466 [2022-11-16 12:20:26,105 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2022-11-16 12:20:26,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2022-11-16 12:20:26,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:26,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2022-11-16 12:20:26,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states 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 12:20:26,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:26,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:26,130 INFO L175 Difference]: Start difference. First operand has 173 places, 167 transitions, 374 flow. Second operand 6 states and 1048 transitions. [2022-11-16 12:20:26,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 166 transitions, 426 flow [2022-11-16 12:20:26,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 166 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:26,134 INFO L231 Difference]: Finished difference. Result has 175 places, 166 transitions, 376 flow [2022-11-16 12:20:26,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=376, PETRI_PLACES=175, PETRI_TRANSITIONS=166} [2022-11-16 12:20:26,137 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -8 predicate places. [2022-11-16 12:20:26,137 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 166 transitions, 376 flow [2022-11-16 12:20:26,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states 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 12:20:26,138 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:26,138 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:26,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:20:26,138 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:26,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1822978760, now seen corresponding path program 1 times [2022-11-16 12:20:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:26,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861181676] [2022-11-16 12:20:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:26,211 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 12:20:26,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:26,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861181676] [2022-11-16 12:20:26,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861181676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:26,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:26,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:26,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714349132] [2022-11-16 12:20:26,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:26,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:26,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:26,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:26,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:26,224 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 203 [2022-11-16 12:20:26,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 166 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states 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 12:20:26,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:26,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 203 [2022-11-16 12:20:26,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:26,305 INFO L130 PetriNetUnfolder]: 25/281 cut-off events. [2022-11-16 12:20:26,305 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 12:20:26,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 281 events. 25/281 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 978 event pairs, 6 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 297. Up to 34 conditions per place. [2022-11-16 12:20:26,309 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 15 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-16 12:20:26,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 167 transitions, 414 flow [2022-11-16 12:20:26,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2022-11-16 12:20:26,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9310344827586207 [2022-11-16 12:20:26,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 567 transitions. [2022-11-16 12:20:26,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 567 transitions. [2022-11-16 12:20:26,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:26,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 567 transitions. [2022-11-16 12:20:26,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:26,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:26,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:26,318 INFO L175 Difference]: Start difference. First operand has 175 places, 166 transitions, 376 flow. Second operand 3 states and 567 transitions. [2022-11-16 12:20:26,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 167 transitions, 414 flow [2022-11-16 12:20:26,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 407 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:26,322 INFO L231 Difference]: Finished difference. Result has 172 places, 165 transitions, 371 flow [2022-11-16 12:20:26,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=172, PETRI_TRANSITIONS=165} [2022-11-16 12:20:26,325 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -11 predicate places. [2022-11-16 12:20:26,325 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 165 transitions, 371 flow [2022-11-16 12:20:26,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states 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 12:20:26,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:26,326 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 12:20:26,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:20:26,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:26,327 INFO L85 PathProgramCache]: Analyzing trace with hash -386136429, now seen corresponding path program 1 times [2022-11-16 12:20:26,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:26,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40759606] [2022-11-16 12:20:26,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:26,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:26,858 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 12:20:26,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:26,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40759606] [2022-11-16 12:20:26,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40759606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:26,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:26,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:26,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304732424] [2022-11-16 12:20:26,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:26,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:26,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:26,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:26,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:26,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 203 [2022-11-16 12:20:26,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 165 transitions, 371 flow. Second operand has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states 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 12:20:26,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:26,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 203 [2022-11-16 12:20:26,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:26,982 INFO L130 PetriNetUnfolder]: 13/247 cut-off events. [2022-11-16 12:20:26,982 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:26,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 247 events. 13/247 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 678 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 248. Up to 14 conditions per place. [2022-11-16 12:20:26,985 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 22 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-16 12:20:26,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 164 transitions, 421 flow [2022-11-16 12:20:26,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1047 transitions. [2022-11-16 12:20:26,989 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8596059113300493 [2022-11-16 12:20:26,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1047 transitions. [2022-11-16 12:20:26,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1047 transitions. [2022-11-16 12:20:26,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:26,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1047 transitions. [2022-11-16 12:20:26,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states 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 12:20:26,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:26,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:26,996 INFO L175 Difference]: Start difference. First operand has 172 places, 165 transitions, 371 flow. Second operand 6 states and 1047 transitions. [2022-11-16 12:20:26,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 164 transitions, 421 flow [2022-11-16 12:20:26,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 164 transitions, 417 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:27,002 INFO L231 Difference]: Finished difference. Result has 174 places, 164 transitions, 373 flow [2022-11-16 12:20:27,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=373, PETRI_PLACES=174, PETRI_TRANSITIONS=164} [2022-11-16 12:20:27,003 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -9 predicate places. [2022-11-16 12:20:27,003 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 164 transitions, 373 flow [2022-11-16 12:20:27,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.0) internal successors, (1038), 6 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states 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 12:20:27,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:27,004 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] [2022-11-16 12:20:27,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:20:27,005 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:27,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:27,006 INFO L85 PathProgramCache]: Analyzing trace with hash 456094491, now seen corresponding path program 1 times [2022-11-16 12:20:27,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:27,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308645596] [2022-11-16 12:20:27,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:27,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:27,573 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 12:20:27,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:27,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308645596] [2022-11-16 12:20:27,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308645596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:27,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:27,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634641351] [2022-11-16 12:20:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:27,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:27,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 203 [2022-11-16 12:20:27,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 164 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states 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 12:20:27,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:27,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 203 [2022-11-16 12:20:27,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:27,664 INFO L130 PetriNetUnfolder]: 13/246 cut-off events. [2022-11-16 12:20:27,664 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:20:27,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 246 events. 13/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 674 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 251. Up to 20 conditions per place. [2022-11-16 12:20:27,667 INFO L137 encePairwiseOnDemand]: 198/203 looper letters, 21 selfloop transitions, 4 changer transitions 0/163 dead transitions. [2022-11-16 12:20:27,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 163 transitions, 421 flow [2022-11-16 12:20:27,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:27,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1046 transitions. [2022-11-16 12:20:27,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8587848932676518 [2022-11-16 12:20:27,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1046 transitions. [2022-11-16 12:20:27,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1046 transitions. [2022-11-16 12:20:27,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:27,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1046 transitions. [2022-11-16 12:20:27,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.33333333333334) internal successors, (1046), 6 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states 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 12:20:27,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:27,677 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states 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 12:20:27,677 INFO L175 Difference]: Start difference. First operand has 174 places, 164 transitions, 373 flow. Second operand 6 states and 1046 transitions. [2022-11-16 12:20:27,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 163 transitions, 421 flow [2022-11-16 12:20:27,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 163 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:27,681 INFO L231 Difference]: Finished difference. Result has 174 places, 163 transitions, 372 flow [2022-11-16 12:20:27,682 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=174, PETRI_TRANSITIONS=163} [2022-11-16 12:20:27,682 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -9 predicate places. [2022-11-16 12:20:27,683 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 163 transitions, 372 flow [2022-11-16 12:20:27,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states 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 12:20:27,684 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:27,684 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:27,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:20:27,684 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1658637624, now seen corresponding path program 1 times [2022-11-16 12:20:27,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:27,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917528888] [2022-11-16 12:20:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:27,753 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 12:20:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:27,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917528888] [2022-11-16 12:20:27,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917528888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:27,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:27,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:27,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786708752] [2022-11-16 12:20:27,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:27,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:27,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:27,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:27,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:27,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 203 [2022-11-16 12:20:27,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 163 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 12:20:27,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:27,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 203 [2022-11-16 12:20:27,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:27,824 INFO L130 PetriNetUnfolder]: 21/327 cut-off events. [2022-11-16 12:20:27,824 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-11-16 12:20:27,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 327 events. 21/327 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1242 event pairs, 4 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 358. Up to 17 conditions per place. [2022-11-16 12:20:27,827 INFO L137 encePairwiseOnDemand]: 201/203 looper letters, 9 selfloop transitions, 1 changer transitions 0/162 dead transitions. [2022-11-16 12:20:27,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 162 transitions, 390 flow [2022-11-16 12:20:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:27,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:27,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2022-11-16 12:20:27,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9441707717569786 [2022-11-16 12:20:27,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 575 transitions. [2022-11-16 12:20:27,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 575 transitions. [2022-11-16 12:20:27,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:27,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 575 transitions. [2022-11-16 12:20:27,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states 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 12:20:27,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:27,834 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:27,835 INFO L175 Difference]: Start difference. First operand has 174 places, 163 transitions, 372 flow. Second operand 3 states and 575 transitions. [2022-11-16 12:20:27,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 162 transitions, 390 flow [2022-11-16 12:20:27,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 162 transitions, 383 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:27,839 INFO L231 Difference]: Finished difference. Result has 171 places, 162 transitions, 365 flow [2022-11-16 12:20:27,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=171, PETRI_TRANSITIONS=162} [2022-11-16 12:20:27,840 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -12 predicate places. [2022-11-16 12:20:27,840 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 162 transitions, 365 flow [2022-11-16 12:20:27,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states 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 12:20:27,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:27,841 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:27,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:20:27,842 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:27,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1479533620, now seen corresponding path program 1 times [2022-11-16 12:20:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:27,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704005048] [2022-11-16 12:20:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:27,925 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 12:20:27,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:27,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704005048] [2022-11-16 12:20:27,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704005048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:27,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:27,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610340267] [2022-11-16 12:20:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:27,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:27,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:27,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:27,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 203 [2022-11-16 12:20:27,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 162 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:20:27,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:27,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 203 [2022-11-16 12:20:27,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:28,028 INFO L130 PetriNetUnfolder]: 23/345 cut-off events. [2022-11-16 12:20:28,028 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 12:20:28,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 345 events. 23/345 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1334 event pairs, 6 based on Foata normal form. 0/328 useless extension candidates. Maximal degree in co-relation 396. Up to 23 conditions per place. [2022-11-16 12:20:28,033 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 11 selfloop transitions, 1 changer transitions 0/160 dead transitions. [2022-11-16 12:20:28,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 160 transitions, 385 flow [2022-11-16 12:20:28,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:28,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:28,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 569 transitions. [2022-11-16 12:20:28,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9343185550082101 [2022-11-16 12:20:28,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 569 transitions. [2022-11-16 12:20:28,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 569 transitions. [2022-11-16 12:20:28,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:28,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 569 transitions. [2022-11-16 12:20:28,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states 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 12:20:28,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:28,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:28,042 INFO L175 Difference]: Start difference. First operand has 171 places, 162 transitions, 365 flow. Second operand 3 states and 569 transitions. [2022-11-16 12:20:28,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 160 transitions, 385 flow [2022-11-16 12:20:28,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 160 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:20:28,047 INFO L231 Difference]: Finished difference. Result has 170 places, 160 transitions, 362 flow [2022-11-16 12:20:28,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=170, PETRI_TRANSITIONS=160} [2022-11-16 12:20:28,048 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -13 predicate places. [2022-11-16 12:20:28,049 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 160 transitions, 362 flow [2022-11-16 12:20:28,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:20:28,049 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:28,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:28,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:20:28,050 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:20:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash 435940053, now seen corresponding path program 1 times [2022-11-16 12:20:28,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:28,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92350872] [2022-11-16 12:20:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:28,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:28,140 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 12:20:28,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:28,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92350872] [2022-11-16 12:20:28,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92350872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:28,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:28,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045796296] [2022-11-16 12:20:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:28,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 203 [2022-11-16 12:20:28,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 160 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:20:28,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:28,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 203 [2022-11-16 12:20:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:28,199 INFO L130 PetriNetUnfolder]: 19/265 cut-off events. [2022-11-16 12:20:28,199 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 12:20:28,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 265 events. 19/265 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 836 event pairs, 6 based on Foata normal form. 1/255 useless extension candidates. Maximal degree in co-relation 317. Up to 29 conditions per place. [2022-11-16 12:20:28,202 INFO L137 encePairwiseOnDemand]: 200/203 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2022-11-16 12:20:28,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 158 transitions, 380 flow [2022-11-16 12:20:28,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2022-11-16 12:20:28,204 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9326765188834154 [2022-11-16 12:20:28,204 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2022-11-16 12:20:28,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2022-11-16 12:20:28,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:28,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2022-11-16 12:20:28,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 12:20:28,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:28,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states 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 12:20:28,209 INFO L175 Difference]: Start difference. First operand has 170 places, 160 transitions, 362 flow. Second operand 3 states and 568 transitions. [2022-11-16 12:20:28,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 158 transitions, 380 flow [2022-11-16 12:20:28,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 158 transitions, 379 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:20:28,212 INFO L231 Difference]: Finished difference. Result has 169 places, 0 transitions, 0 flow [2022-11-16 12:20:28,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=169, PETRI_TRANSITIONS=0} [2022-11-16 12:20:28,213 INFO L288 CegarLoopForPetriNet]: 183 programPoint places, -14 predicate places. [2022-11-16 12:20:28,213 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 0 transitions, 0 flow [2022-11-16 12:20:28,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:20:28,216 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-11-16 12:20:28,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-16 12:20:28,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-16 12:20:28,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-16 12:20:28,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-16 12:20:28,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-11-16 12:20:28,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-11-16 12:20:28,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-11-16 12:20:28,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-11-16 12:20:28,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-11-16 12:20:28,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-16 12:20:28,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-16 12:20:28,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-16 12:20:28,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-16 12:20:28,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-16 12:20:28,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-16 12:20:28,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-16 12:20:28,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-16 12:20:28,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-11-16 12:20:28,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-11-16 12:20:28,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-16 12:20:28,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-16 12:20:28,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-11-16 12:20:28,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2022-11-16 12:20:28,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-11-16 12:20:28,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2022-11-16 12:20:28,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-11-16 12:20:28,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-11-16 12:20:28,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-11-16 12:20:28,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-16 12:20:28,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-16 12:20:28,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-16 12:20:28,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-16 12:20:28,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-16 12:20:28,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-16 12:20:28,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-16 12:20:28,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-16 12:20:28,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-16 12:20:28,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:20:28,225 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:28,232 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:20:28,232 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:20:28,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:28 BasicIcfg [2022-11-16 12:20:28,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:20:28,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:20:28,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:20:28,239 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:20:28,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:22" (3/4) ... [2022-11-16 12:20:28,243 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:20:28,250 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:20:28,250 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:20:28,250 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 12:20:28,256 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-16 12:20:28,256 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:20:28,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:20:28,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:20:28,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:20:28,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:20:28,298 INFO L158 Benchmark]: Toolchain (without parser) took 6592.09ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 93.1MB in the beginning and 117.1MB in the end (delta: -24.0MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,299 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:20:28,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.85ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 104.0MB in the end (delta: -11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.65ms. Allocated memory is still 130.0MB. Free memory was 104.0MB in the beginning and 102.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,300 INFO L158 Benchmark]: Boogie Preprocessor took 70.54ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,300 INFO L158 Benchmark]: RCFGBuilder took 634.16ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 81.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,301 INFO L158 Benchmark]: TraceAbstraction took 5413.17ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 80.9MB in the beginning and 120.3MB in the end (delta: -39.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,301 INFO L158 Benchmark]: Witness Printer took 59.17ms. Allocated memory is still 207.6MB. Free memory was 120.3MB in the beginning and 117.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:20:28,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.85ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 104.0MB in the end (delta: -11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.65ms. Allocated memory is still 130.0MB. Free memory was 104.0MB in the beginning and 102.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.54ms. Allocated memory is still 130.0MB. Free memory was 102.2MB in the beginning and 100.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 634.16ms. Allocated memory is still 130.0MB. Free memory was 100.6MB in the beginning and 81.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5413.17ms. Allocated memory was 130.0MB in the beginning and 207.6MB in the end (delta: 77.6MB). Free memory was 80.9MB in the beginning and 120.3MB in the end (delta: -39.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Witness Printer took 59.17ms. Allocated memory is still 207.6MB. Free memory was 120.3MB in the beginning and 117.1MB 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: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: 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 7 procedures, 267 locations, 38 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: 5.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 124 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=7, InterpolantAutomatonStates: 54, 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, 2.1s InterpolantComputationTime, 1063 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1048 ConstructedInterpolants, 0 QuantifiedInterpolants, 1315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 23 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:20:28,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab1f1f06-a24c-4ee7-b3c0-ff0cbb8471e1/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