./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/mult-flipped-dist.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_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/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_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/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_91ff4819-7c3b-4d66-9742-864143e2e5fb/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 0d10bf8c0e842192a13f4b6638f03cf57668d5bee07d0b49c4b595de1c605066 --- 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 12:21:39,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:21:39,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:21:39,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:21:39,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:21:39,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:21:39,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:21:39,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:21:39,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:21:39,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:21:39,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:21:39,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:21:39,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:21:39,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:21:39,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:21:39,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:21:39,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:21:39,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:21:39,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:21:39,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:21:39,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:21:39,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:21:39,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:21:39,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:21:39,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:21:39,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:21:39,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:21:39,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:21:39,903 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:21:39,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:21:39,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:21:39,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:21:39,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:21:39,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:21:39,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:21:39,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:21:39,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:21:39,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:21:39,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:21:39,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:21:39,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:21:39,915 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:21:39,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:21:39,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:21:39,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:21:39,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:21:39,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:21:39,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:21:39,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:21:39,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:21:39,958 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:21:39,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:21:39,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:21:39,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:21:39,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:21:39,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:21:39,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:21:39,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:21:39,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:21:39,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:21:39,961 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:21:39,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:21:39,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:21:39,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:21:39,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:21:39,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:21:39,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:21:39,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:21:39,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:39,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:21:39,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:21:39,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:21:39,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:21:39,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:21:39,965 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:21:39,965 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:21:39,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:21:39,966 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_91ff4819-7c3b-4d66-9742-864143e2e5fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d10bf8c0e842192a13f4b6638f03cf57668d5bee07d0b49c4b595de1c605066 [2022-11-16 12:21:40,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:21:40,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:21:40,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:21:40,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:21:40,275 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:21:40,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c [2022-11-16 12:21:40,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/data/7dcddc277/5a6bd2896c3840d78d8378b63c76351b/FLAG113b2a57c [2022-11-16 12:21:40,780 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:21:40,781 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c [2022-11-16 12:21:40,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/data/7dcddc277/5a6bd2896c3840d78d8378b63c76351b/FLAG113b2a57c [2022-11-16 12:21:41,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/data/7dcddc277/5a6bd2896c3840d78d8378b63c76351b [2022-11-16 12:21:41,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:21:41,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:21:41,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:41,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:21:41,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:21:41,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264f27d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41, skipping insertion in model container [2022-11-16 12:21:41,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:21:41,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:21:41,516 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_91ff4819-7c3b-4d66-9742-864143e2e5fb/sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c[2135,2148] [2022-11-16 12:21:41,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:41,539 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:21:41,567 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_91ff4819-7c3b-4d66-9742-864143e2e5fb/sv-benchmarks/c/weaver/mult-flipped-dist.wvr.c[2135,2148] [2022-11-16 12:21:41,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:21:41,582 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:21:41,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41 WrapperNode [2022-11-16 12:21:41,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:21:41,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:41,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:21:41,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:21:41,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,641 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2022-11-16 12:21:41,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:21:41,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:21:41,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:21:41,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:21:41,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,700 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:21:41,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:21:41,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:21:41,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:21:41,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (1/1) ... [2022-11-16 12:21:41,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:21:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:21:41,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:21:41,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:21:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:21:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:21:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:21:41,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:21:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:21:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:21:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:21:41,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:21:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:21:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:21:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:21:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:21:41,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:21:41,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:21:41,814 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 12:21:42,023 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:21:42,025 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:21:42,465 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:21:42,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:21:42,475 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-16 12:21:42,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:42 BoogieIcfgContainer [2022-11-16 12:21:42,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:21:42,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:21:42,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:21:42,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:21:42,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:21:41" (1/3) ... [2022-11-16 12:21:42,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8dad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:42, skipping insertion in model container [2022-11-16 12:21:42,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:21:41" (2/3) ... [2022-11-16 12:21:42,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8dad98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:21:42, skipping insertion in model container [2022-11-16 12:21:42,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:42" (3/3) ... [2022-11-16 12:21:42,492 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2022-11-16 12:21:42,504 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:21:42,515 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:21:42,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 12:21:42,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:21:42,634 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:21:42,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 193 transitions, 410 flow [2022-11-16 12:21:42,768 INFO L130 PetriNetUnfolder]: 7/190 cut-off events. [2022-11-16 12:21:42,768 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:21:42,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 7/190 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 268 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2022-11-16 12:21:42,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 193 transitions, 410 flow [2022-11-16 12:21:42,797 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 170 transitions, 358 flow [2022-11-16 12:21:42,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:21:42,815 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;@517a031e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:21:42,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-16 12:21:42,823 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-16 12:21:42,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:21:42,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:42,825 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 12:21:42,825 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 12:21:42,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2019018468, now seen corresponding path program 1 times [2022-11-16 12:21:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:42,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124011178] [2022-11-16 12:21:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:42,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,068 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 12:21:43,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:43,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124011178] [2022-11-16 12:21:43,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124011178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:43,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:43,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:43,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506405075] [2022-11-16 12:21:43,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:43,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:43,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:43,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:43,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:43,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-16 12:21:43,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 12:21:43,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:43,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-16 12:21:43,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:43,311 INFO L130 PetriNetUnfolder]: 40/427 cut-off events. [2022-11-16 12:21:43,312 INFO L131 PetriNetUnfolder]: For 51/52 co-relation queries the response was YES. [2022-11-16 12:21:43,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 427 events. 40/427 cut-off events. For 51/52 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1894 event pairs, 21 based on Foata normal form. 41/382 useless extension candidates. Maximal degree in co-relation 352. Up to 72 conditions per place. [2022-11-16 12:21:43,322 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-11-16 12:21:43,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 166 transitions, 384 flow [2022-11-16 12:21:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2022-11-16 12:21:43,346 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.917098445595855 [2022-11-16 12:21:43,347 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2022-11-16 12:21:43,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2022-11-16 12:21:43,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:43,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2022-11-16 12:21:43,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states 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 12:21:43,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:43,375 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:43,376 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 358 flow. Second operand 3 states and 531 transitions. [2022-11-16 12:21:43,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 166 transitions, 384 flow [2022-11-16 12:21:43,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:21:43,386 INFO L231 Difference]: Finished difference. Result has 169 places, 166 transitions, 342 flow [2022-11-16 12:21:43,388 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=169, PETRI_TRANSITIONS=166} [2022-11-16 12:21:43,392 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -5 predicate places. [2022-11-16 12:21:43,393 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 166 transitions, 342 flow [2022-11-16 12:21:43,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 12:21:43,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:43,394 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 12:21:43,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:21:43,394 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 12:21:43,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash -806936975, now seen corresponding path program 1 times [2022-11-16 12:21:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:43,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648851691] [2022-11-16 12:21:43,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,527 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 12:21:43,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:43,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648851691] [2022-11-16 12:21:43,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648851691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:43,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:43,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236004767] [2022-11-16 12:21:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:43,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:43,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:43,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:43,539 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-16 12:21:43,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 12:21:43,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:43,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-16 12:21:43,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:43,727 INFO L130 PetriNetUnfolder]: 63/505 cut-off events. [2022-11-16 12:21:43,727 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-16 12:21:43,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 505 events. 63/505 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2429 event pairs, 39 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 589. Up to 105 conditions per place. [2022-11-16 12:21:43,735 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-16 12:21:43,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 165 transitions, 374 flow [2022-11-16 12:21:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:43,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-16 12:21:43,740 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-16 12:21:43,740 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-16 12:21:43,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-16 12:21:43,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:43,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-16 12:21:43,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states 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 12:21:43,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:43,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:43,745 INFO L175 Difference]: Start difference. First operand has 169 places, 166 transitions, 342 flow. Second operand 3 states and 528 transitions. [2022-11-16 12:21:43,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 165 transitions, 374 flow [2022-11-16 12:21:43,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:43,752 INFO L231 Difference]: Finished difference. Result has 168 places, 165 transitions, 340 flow [2022-11-16 12:21:43,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=166, 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=340, PETRI_PLACES=168, PETRI_TRANSITIONS=165} [2022-11-16 12:21:43,754 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2022-11-16 12:21:43,755 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 165 transitions, 340 flow [2022-11-16 12:21:43,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 12:21:43,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:43,756 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 12:21:43,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:21:43,757 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 12:21:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1235032587, now seen corresponding path program 1 times [2022-11-16 12:21:43,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:43,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507412403] [2022-11-16 12:21:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:43,858 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 12:21:43,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:43,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507412403] [2022-11-16 12:21:43,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507412403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:43,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:43,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:43,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067420331] [2022-11-16 12:21:43,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:43,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:43,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:43,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 193 [2022-11-16 12:21:43,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 165 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states 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 12:21:43,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:43,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 193 [2022-11-16 12:21:43,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:44,107 INFO L130 PetriNetUnfolder]: 201/1231 cut-off events. [2022-11-16 12:21:44,107 INFO L131 PetriNetUnfolder]: For 21/135 co-relation queries the response was YES. [2022-11-16 12:21:44,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 1231 events. 201/1231 cut-off events. For 21/135 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 9319 event pairs, 135 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 1526. Up to 307 conditions per place. [2022-11-16 12:21:44,122 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-16 12:21:44,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 378 flow [2022-11-16 12:21:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-16 12:21:44,126 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-16 12:21:44,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-16 12:21:44,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-16 12:21:44,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:44,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-16 12:21:44,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 12:21:44,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,131 INFO L175 Difference]: Start difference. First operand has 168 places, 165 transitions, 340 flow. Second operand 3 states and 522 transitions. [2022-11-16 12:21:44,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 378 flow [2022-11-16 12:21:44,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:44,138 INFO L231 Difference]: Finished difference. Result has 167 places, 164 transitions, 338 flow [2022-11-16 12:21:44,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=167, PETRI_TRANSITIONS=164} [2022-11-16 12:21:44,140 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -7 predicate places. [2022-11-16 12:21:44,141 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 164 transitions, 338 flow [2022-11-16 12:21:44,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states 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 12:21:44,141 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:44,141 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] [2022-11-16 12:21:44,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:21:44,142 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 12:21:44,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:44,143 INFO L85 PathProgramCache]: Analyzing trace with hash 463162194, now seen corresponding path program 1 times [2022-11-16 12:21:44,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:44,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317187098] [2022-11-16 12:21:44,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:44,202 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 12:21:44,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:44,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317187098] [2022-11-16 12:21:44,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317187098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:44,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:44,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:44,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356238696] [2022-11-16 12:21:44,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:44,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:44,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:44,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:44,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:44,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-11-16 12:21:44,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 164 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states 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 12:21:44,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:44,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-11-16 12:21:44,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:44,347 INFO L130 PetriNetUnfolder]: 97/714 cut-off events. [2022-11-16 12:21:44,347 INFO L131 PetriNetUnfolder]: For 14/40 co-relation queries the response was YES. [2022-11-16 12:21:44,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 714 events. 97/714 cut-off events. For 14/40 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4266 event pairs, 34 based on Foata normal form. 1/571 useless extension candidates. Maximal degree in co-relation 837. Up to 146 conditions per place. [2022-11-16 12:21:44,354 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 16 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2022-11-16 12:21:44,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 166 transitions, 382 flow [2022-11-16 12:21:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:44,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-11-16 12:21:44,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.918825561312608 [2022-11-16 12:21:44,357 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-11-16 12:21:44,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-11-16 12:21:44,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:44,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-11-16 12:21:44,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 12:21:44,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,365 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,366 INFO L175 Difference]: Start difference. First operand has 167 places, 164 transitions, 338 flow. Second operand 3 states and 532 transitions. [2022-11-16 12:21:44,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 166 transitions, 382 flow [2022-11-16 12:21:44,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 166 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:44,371 INFO L231 Difference]: Finished difference. Result has 165 places, 164 transitions, 349 flow [2022-11-16 12:21:44,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=165, PETRI_TRANSITIONS=164} [2022-11-16 12:21:44,378 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-16 12:21:44,378 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 164 transitions, 349 flow [2022-11-16 12:21:44,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states 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 12:21:44,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:44,380 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:44,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:21:44,381 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 12:21:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:44,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1664553678, now seen corresponding path program 1 times [2022-11-16 12:21:44,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:44,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376370056] [2022-11-16 12:21:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:44,470 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 12:21:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:44,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376370056] [2022-11-16 12:21:44,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376370056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:44,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:44,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:44,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032776885] [2022-11-16 12:21:44,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:44,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:44,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:44,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:44,474 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-16 12:21:44,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 164 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 12:21:44,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:44,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-16 12:21:44,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:44,571 INFO L130 PetriNetUnfolder]: 46/569 cut-off events. [2022-11-16 12:21:44,571 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 12:21:44,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 569 events. 46/569 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3309 event pairs, 9 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 529. Up to 46 conditions per place. [2022-11-16 12:21:44,595 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2022-11-16 12:21:44,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 381 flow [2022-11-16 12:21:44,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:44,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:44,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-11-16 12:21:44,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-11-16 12:21:44,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-11-16 12:21:44,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-11-16 12:21:44,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:44,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-11-16 12:21:44,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:44,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,602 INFO L175 Difference]: Start difference. First operand has 165 places, 164 transitions, 349 flow. Second operand 3 states and 536 transitions. [2022-11-16 12:21:44,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 381 flow [2022-11-16 12:21:44,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 164 transitions, 381 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:44,606 INFO L231 Difference]: Finished difference. Result has 165 places, 162 transitions, 351 flow [2022-11-16 12:21:44,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2022-11-16 12:21:44,607 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-16 12:21:44,607 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 351 flow [2022-11-16 12:21:44,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 12:21:44,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:44,608 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] [2022-11-16 12:21:44,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:21:44,609 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:44,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:44,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1908235884, now seen corresponding path program 1 times [2022-11-16 12:21:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:44,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158704391] [2022-11-16 12:21:44,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:44,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:44,655 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 12:21:44,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:44,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158704391] [2022-11-16 12:21:44,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158704391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:44,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:44,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:44,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547365877] [2022-11-16 12:21:44,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:44,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:44,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:44,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-16 12:21:44,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 12:21:44,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:44,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-16 12:21:44,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:44,784 INFO L130 PetriNetUnfolder]: 68/691 cut-off events. [2022-11-16 12:21:44,785 INFO L131 PetriNetUnfolder]: For 17/23 co-relation queries the response was YES. [2022-11-16 12:21:44,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 691 events. 68/691 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3884 event pairs, 16 based on Foata normal form. 2/587 useless extension candidates. Maximal degree in co-relation 673. Up to 63 conditions per place. [2022-11-16 12:21:44,792 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-16 12:21:44,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 167 transitions, 404 flow [2022-11-16 12:21:44,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:44,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:44,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-11-16 12:21:44,794 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9326424870466321 [2022-11-16 12:21:44,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-11-16 12:21:44,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-11-16 12:21:44,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:44,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-11-16 12:21:44,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 12:21:44,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:44,799 INFO L175 Difference]: Start difference. First operand has 165 places, 162 transitions, 351 flow. Second operand 3 states and 540 transitions. [2022-11-16 12:21:44,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 167 transitions, 404 flow [2022-11-16 12:21:44,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 167 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:44,803 INFO L231 Difference]: Finished difference. Result has 164 places, 162 transitions, 355 flow [2022-11-16 12:21:44,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=164, PETRI_TRANSITIONS=162} [2022-11-16 12:21:44,805 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -10 predicate places. [2022-11-16 12:21:44,805 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 162 transitions, 355 flow [2022-11-16 12:21:44,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 12:21:44,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:44,806 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] [2022-11-16 12:21:44,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:21:44,806 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 12:21:44,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2096701929, now seen corresponding path program 1 times [2022-11-16 12:21:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:44,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111795457] [2022-11-16 12:21:44,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:44,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:44,859 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 12:21:44,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:44,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111795457] [2022-11-16 12:21:44,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111795457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:44,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:44,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:44,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129477983] [2022-11-16 12:21:44,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:44,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:44,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:44,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:44,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:44,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-16 12:21:44,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 12:21:44,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:44,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-16 12:21:44,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:45,002 INFO L130 PetriNetUnfolder]: 53/527 cut-off events. [2022-11-16 12:21:45,002 INFO L131 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-11-16 12:21:45,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 527 events. 53/527 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2631 event pairs, 19 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 508. Up to 47 conditions per place. [2022-11-16 12:21:45,008 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-16 12:21:45,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 391 flow [2022-11-16 12:21:45,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2022-11-16 12:21:45,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9153713298791019 [2022-11-16 12:21:45,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 530 transitions. [2022-11-16 12:21:45,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 530 transitions. [2022-11-16 12:21:45,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:45,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 530 transitions. [2022-11-16 12:21:45,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states 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 12:21:45,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,015 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,016 INFO L175 Difference]: Start difference. First operand has 164 places, 162 transitions, 355 flow. Second operand 3 states and 530 transitions. [2022-11-16 12:21:45,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 391 flow [2022-11-16 12:21:45,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 163 transitions, 391 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:45,020 INFO L231 Difference]: Finished difference. Result has 165 places, 161 transitions, 357 flow [2022-11-16 12:21:45,020 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=165, PETRI_TRANSITIONS=161} [2022-11-16 12:21:45,021 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-11-16 12:21:45,021 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 161 transitions, 357 flow [2022-11-16 12:21:45,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 12:21:45,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:45,022 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] [2022-11-16 12:21:45,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:21:45,022 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash -105588786, now seen corresponding path program 1 times [2022-11-16 12:21:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437087127] [2022-11-16 12:21:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:45,072 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 12:21:45,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:45,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437087127] [2022-11-16 12:21:45,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437087127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:45,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:45,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:45,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285155794] [2022-11-16 12:21:45,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:45,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:45,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:45,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:45,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:45,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-16 12:21:45,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 161 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states 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 12:21:45,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:45,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-16 12:21:45,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:45,197 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][89], [Black: 220#true, 225#true, 112#L58-1true, 161#L75-4true, 229#true, Black: 211#true, 79#L42-1true, 213#(= |#race~c~0| 0), 76#L50-1true, 222#(= |#race~a~0| 0)]) [2022-11-16 12:21:45,197 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,197 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:45,197 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:21:45,197 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:45,225 INFO L130 PetriNetUnfolder]: 83/701 cut-off events. [2022-11-16 12:21:45,225 INFO L131 PetriNetUnfolder]: For 25/29 co-relation queries the response was YES. [2022-11-16 12:21:45,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 701 events. 83/701 cut-off events. For 25/29 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4069 event pairs, 21 based on Foata normal form. 0/606 useless extension candidates. Maximal degree in co-relation 696. Up to 65 conditions per place. [2022-11-16 12:21:45,232 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/161 dead transitions. [2022-11-16 12:21:45,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 389 flow [2022-11-16 12:21:45,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-11-16 12:21:45,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-11-16 12:21:45,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-11-16 12:21:45,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-11-16 12:21:45,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:45,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-11-16 12:21:45,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:45,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,239 INFO L175 Difference]: Start difference. First operand has 165 places, 161 transitions, 357 flow. Second operand 3 states and 536 transitions. [2022-11-16 12:21:45,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 389 flow [2022-11-16 12:21:45,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 161 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:45,243 INFO L231 Difference]: Finished difference. Result has 163 places, 159 transitions, 355 flow [2022-11-16 12:21:45,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=163, PETRI_TRANSITIONS=159} [2022-11-16 12:21:45,246 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -11 predicate places. [2022-11-16 12:21:45,247 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 159 transitions, 355 flow [2022-11-16 12:21:45,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states 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 12:21:45,247 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:45,247 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] [2022-11-16 12:21:45,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:21:45,248 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:45,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1608407088, now seen corresponding path program 1 times [2022-11-16 12:21:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896233772] [2022-11-16 12:21:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:45,331 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 12:21:45,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:45,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896233772] [2022-11-16 12:21:45,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896233772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:45,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:45,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:45,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122784129] [2022-11-16 12:21:45,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:45,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:45,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:45,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:45,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:45,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-16 12:21:45,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 159 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:45,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:45,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-16 12:21:45,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:45,475 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, 229#true, Black: 211#true, 79#L42-1true, 213#(= |#race~c~0| 0), 76#L50-1true, 222#(= |#race~a~0| 0)]) [2022-11-16 12:21:45,476 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,476 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:45,476 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,476 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:45,497 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 229#true, Black: 211#true, 213#(= |#race~c~0| 0), 76#L50-1true, 222#(= |#race~a~0| 0), 121#L76-7true]) [2022-11-16 12:21:45,498 INFO L383 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-11-16 12:21:45,498 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-16 12:21:45,498 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:45,498 INFO L386 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-11-16 12:21:45,506 INFO L130 PetriNetUnfolder]: 138/994 cut-off events. [2022-11-16 12:21:45,506 INFO L131 PetriNetUnfolder]: For 33/41 co-relation queries the response was YES. [2022-11-16 12:21:45,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 994 events. 138/994 cut-off events. For 33/41 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 6697 event pairs, 21 based on Foata normal form. 4/874 useless extension candidates. Maximal degree in co-relation 988. Up to 143 conditions per place. [2022-11-16 12:21:45,516 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-16 12:21:45,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 163 transitions, 403 flow [2022-11-16 12:21:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:45,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2022-11-16 12:21:45,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9309153713298791 [2022-11-16 12:21:45,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2022-11-16 12:21:45,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2022-11-16 12:21:45,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:45,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2022-11-16 12:21:45,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 12:21:45,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,522 INFO L175 Difference]: Start difference. First operand has 163 places, 159 transitions, 355 flow. Second operand 3 states and 539 transitions. [2022-11-16 12:21:45,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 163 transitions, 403 flow [2022-11-16 12:21:45,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 163 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:45,526 INFO L231 Difference]: Finished difference. Result has 162 places, 159 transitions, 359 flow [2022-11-16 12:21:45,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=162, PETRI_TRANSITIONS=159} [2022-11-16 12:21:45,528 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -12 predicate places. [2022-11-16 12:21:45,528 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 159 transitions, 359 flow [2022-11-16 12:21:45,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:45,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:45,529 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:45,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:21:45,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,530 INFO L85 PathProgramCache]: Analyzing trace with hash 154083755, now seen corresponding path program 1 times [2022-11-16 12:21:45,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193032421] [2022-11-16 12:21:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:45,570 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 12:21:45,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:45,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193032421] [2022-11-16 12:21:45,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193032421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:45,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:45,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:45,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061331416] [2022-11-16 12:21:45,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:45,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:45,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:45,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-11-16 12:21:45,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 12:21:45,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:45,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-11-16 12:21:45,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:45,680 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 76#L50-1true, 213#(= |#race~c~0| 0), 238#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-11-16 12:21:45,680 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,681 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,681 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:45,681 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:45,721 INFO L130 PetriNetUnfolder]: 107/839 cut-off events. [2022-11-16 12:21:45,721 INFO L131 PetriNetUnfolder]: For 49/65 co-relation queries the response was YES. [2022-11-16 12:21:45,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1138 conditions, 839 events. 107/839 cut-off events. For 49/65 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5382 event pairs, 23 based on Foata normal form. 6/756 useless extension candidates. Maximal degree in co-relation 884. Up to 72 conditions per place. [2022-11-16 12:21:45,729 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 10 selfloop transitions, 2 changer transitions 7/159 dead transitions. [2022-11-16 12:21:45,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 159 transitions, 389 flow [2022-11-16 12:21:45,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:45,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2022-11-16 12:21:45,732 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.924006908462867 [2022-11-16 12:21:45,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2022-11-16 12:21:45,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2022-11-16 12:21:45,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:45,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2022-11-16 12:21:45,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states 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 12:21:45,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,736 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 359 flow. Second operand 3 states and 535 transitions. [2022-11-16 12:21:45,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 159 transitions, 389 flow [2022-11-16 12:21:45,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:21:45,740 INFO L231 Difference]: Finished difference. Result has 162 places, 150 transitions, 344 flow [2022-11-16 12:21:45,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2022-11-16 12:21:45,741 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -12 predicate places. [2022-11-16 12:21:45,741 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 344 flow [2022-11-16 12:21:45,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 12:21:45,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:45,742 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] [2022-11-16 12:21:45,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:21:45,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:45,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,743 INFO L85 PathProgramCache]: Analyzing trace with hash 477703347, now seen corresponding path program 1 times [2022-11-16 12:21:45,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648562047] [2022-11-16 12:21:45,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:45,796 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 12:21:45,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:45,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648562047] [2022-11-16 12:21:45,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648562047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:45,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:45,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924890856] [2022-11-16 12:21:45,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:45,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:45,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:45,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:45,800 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-16 12:21:45,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states 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 12:21:45,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:45,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-16 12:21:45,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:45,923 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 242#true, 213#(= |#race~c~0| 0), 76#L50-1true, 238#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-11-16 12:21:45,923 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,924 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:45,924 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:45,924 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:45,947 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([449] L51-2-->L51-3: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][124], [Black: 220#true, 235#(= |#race~b~0| 0), 114#L59-5true, 240#(= |#race~x_3~0| 0), Black: 211#true, 213#(= |#race~c~0| 0), 242#true, 222#(= |#race~a~0| 0), Black: 233#true, 121#L76-7true, 188#L51-3true]) [2022-11-16 12:21:45,947 INFO L383 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-11-16 12:21:45,947 INFO L386 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-11-16 12:21:45,947 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-16 12:21:45,947 INFO L386 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-11-16 12:21:45,951 INFO L130 PetriNetUnfolder]: 130/879 cut-off events. [2022-11-16 12:21:45,951 INFO L131 PetriNetUnfolder]: For 35/46 co-relation queries the response was YES. [2022-11-16 12:21:45,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1264 conditions, 879 events. 130/879 cut-off events. For 35/46 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5915 event pairs, 52 based on Foata normal form. 0/794 useless extension candidates. Maximal degree in co-relation 955. Up to 117 conditions per place. [2022-11-16 12:21:45,960 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2022-11-16 12:21:45,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 374 flow [2022-11-16 12:21:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:45,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-16 12:21:45,963 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-16 12:21:45,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-16 12:21:45,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-16 12:21:45,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:45,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-16 12:21:45,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states 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 12:21:45,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:45,968 INFO L175 Difference]: Start difference. First operand has 162 places, 150 transitions, 344 flow. Second operand 3 states and 527 transitions. [2022-11-16 12:21:45,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 374 flow [2022-11-16 12:21:45,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 151 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:45,971 INFO L231 Difference]: Finished difference. Result has 154 places, 149 transitions, 342 flow [2022-11-16 12:21:45,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=154, PETRI_TRANSITIONS=149} [2022-11-16 12:21:45,972 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -20 predicate places. [2022-11-16 12:21:45,973 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 149 transitions, 342 flow [2022-11-16 12:21:45,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states 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 12:21:45,973 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:45,974 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 12:21:45,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:21:45,974 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash -868196793, now seen corresponding path program 1 times [2022-11-16 12:21:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:45,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119252533] [2022-11-16 12:21:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:45,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:46,403 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 12:21:46,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119252533] [2022-11-16 12:21:46,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119252533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:46,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:46,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:46,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207959228] [2022-11-16 12:21:46,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:46,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:46,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:46,407 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-16 12:21:46,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 149 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states 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 12:21:46,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:46,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-16 12:21:46,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:46,553 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 242#true, 76#L50-1true, 213#(= |#race~c~0| 0), 246#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-11-16 12:21:46,553 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:46,553 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:46,553 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:46,554 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:46,564 INFO L130 PetriNetUnfolder]: 59/578 cut-off events. [2022-11-16 12:21:46,564 INFO L131 PetriNetUnfolder]: For 3/37 co-relation queries the response was YES. [2022-11-16 12:21:46,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 578 events. 59/578 cut-off events. For 3/37 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3157 event pairs, 10 based on Foata normal form. 12/533 useless extension candidates. Maximal degree in co-relation 622. Up to 65 conditions per place. [2022-11-16 12:21:46,570 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 22 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2022-11-16 12:21:46,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 148 transitions, 392 flow [2022-11-16 12:21:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2022-11-16 12:21:46,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8419689119170984 [2022-11-16 12:21:46,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2022-11-16 12:21:46,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2022-11-16 12:21:46,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:46,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2022-11-16 12:21:46,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states 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 12:21:46,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:46,579 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:46,579 INFO L175 Difference]: Start difference. First operand has 154 places, 149 transitions, 342 flow. Second operand 6 states and 975 transitions. [2022-11-16 12:21:46,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 148 transitions, 392 flow [2022-11-16 12:21:46,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 148 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:46,584 INFO L231 Difference]: Finished difference. Result has 156 places, 148 transitions, 344 flow [2022-11-16 12:21:46,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=156, PETRI_TRANSITIONS=148} [2022-11-16 12:21:46,586 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2022-11-16 12:21:46,586 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 148 transitions, 344 flow [2022-11-16 12:21:46,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states 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 12:21:46,587 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:46,587 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] [2022-11-16 12:21:46,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:21:46,587 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:46,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash 942161298, now seen corresponding path program 1 times [2022-11-16 12:21:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:46,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153913898] [2022-11-16 12:21:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:46,632 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 12:21:46,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:46,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153913898] [2022-11-16 12:21:46,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153913898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:46,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:46,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:21:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317224090] [2022-11-16 12:21:46,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:46,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:21:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:21:46,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:46,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-16 12:21:46,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 148 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states 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 12:21:46,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:46,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-16 12:21:46,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:46,765 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [253#true, Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 76#L50-1true, 213#(= |#race~c~0| 0), 246#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-11-16 12:21:46,765 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:46,766 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:46,766 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:46,766 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:46,797 INFO L130 PetriNetUnfolder]: 115/751 cut-off events. [2022-11-16 12:21:46,798 INFO L131 PetriNetUnfolder]: For 51/72 co-relation queries the response was YES. [2022-11-16 12:21:46,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1067 conditions, 751 events. 115/751 cut-off events. For 51/72 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4713 event pairs, 38 based on Foata normal form. 1/682 useless extension candidates. Maximal degree in co-relation 989. Up to 112 conditions per place. [2022-11-16 12:21:46,805 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2022-11-16 12:21:46,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 149 transitions, 374 flow [2022-11-16 12:21:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:46,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:21:46,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-16 12:21:46,808 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-16 12:21:46,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-16 12:21:46,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-16 12:21:46,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:46,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-16 12:21:46,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states 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 12:21:46,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:46,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states 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 12:21:46,814 INFO L175 Difference]: Start difference. First operand has 156 places, 148 transitions, 344 flow. Second operand 3 states and 527 transitions. [2022-11-16 12:21:46,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 149 transitions, 374 flow [2022-11-16 12:21:46,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 367 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:21:46,818 INFO L231 Difference]: Finished difference. Result has 153 places, 147 transitions, 339 flow [2022-11-16 12:21:46,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=153, PETRI_TRANSITIONS=147} [2022-11-16 12:21:46,819 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -21 predicate places. [2022-11-16 12:21:46,820 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 147 transitions, 339 flow [2022-11-16 12:21:46,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states 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 12:21:46,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:46,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:46,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:21:46,821 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:46,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1242291274, now seen corresponding path program 1 times [2022-11-16 12:21:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:46,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207635375] [2022-11-16 12:21:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:46,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:47,234 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 12:21:47,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:47,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207635375] [2022-11-16 12:21:47,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207635375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:47,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:47,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:47,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252835330] [2022-11-16 12:21:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:47,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:47,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:47,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:47,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-16 12:21:47,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 147 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states 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 12:21:47,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:47,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-16 12:21:47,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:47,374 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 253#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 257#true, 76#L50-1true, 213#(= |#race~c~0| 0), Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-11-16 12:21:47,374 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:47,374 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:47,375 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:47,375 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:47,384 INFO L130 PetriNetUnfolder]: 59/568 cut-off events. [2022-11-16 12:21:47,385 INFO L131 PetriNetUnfolder]: For 3/35 co-relation queries the response was YES. [2022-11-16 12:21:47,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 568 events. 59/568 cut-off events. For 3/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3060 event pairs, 10 based on Foata normal form. 8/529 useless extension candidates. Maximal degree in co-relation 713. Up to 58 conditions per place. [2022-11-16 12:21:47,391 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 21 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2022-11-16 12:21:47,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 146 transitions, 387 flow [2022-11-16 12:21:47,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:47,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2022-11-16 12:21:47,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8411053540587219 [2022-11-16 12:21:47,394 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2022-11-16 12:21:47,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2022-11-16 12:21:47,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:47,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2022-11-16 12:21:47,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states 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 12:21:47,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:47,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:47,401 INFO L175 Difference]: Start difference. First operand has 153 places, 147 transitions, 339 flow. Second operand 6 states and 974 transitions. [2022-11-16 12:21:47,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 146 transitions, 387 flow [2022-11-16 12:21:47,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 146 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:21:47,405 INFO L231 Difference]: Finished difference. Result has 155 places, 146 transitions, 341 flow [2022-11-16 12:21:47,405 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=341, PETRI_PLACES=155, PETRI_TRANSITIONS=146} [2022-11-16 12:21:47,406 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-11-16 12:21:47,406 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 146 transitions, 341 flow [2022-11-16 12:21:47,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states 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 12:21:47,407 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:21:47,407 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] [2022-11-16 12:21:47,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:21:47,407 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-16 12:21:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:21:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash -710599679, now seen corresponding path program 1 times [2022-11-16 12:21:47,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:21:47,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500458460] [2022-11-16 12:21:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:21:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:21:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:21:47,905 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 12:21:47,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:21:47,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500458460] [2022-11-16 12:21:47,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500458460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:21:47,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:21:47,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:21:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343523302] [2022-11-16 12:21:47,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:21:47,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:21:47,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:21:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:21:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:21:47,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-11-16 12:21:47,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 146 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 12:21:47,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:21:47,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-11-16 12:21:47,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:21:48,045 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 112#L58-1true, 235#(= |#race~b~0| 0), 161#L75-4true, Black: 211#true, 79#L42-1true, 257#true, 76#L50-1true, 213#(= |#race~c~0| 0), 264#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-11-16 12:21:48,046 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-16 12:21:48,046 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-16 12:21:48,046 INFO L386 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-11-16 12:21:48,046 INFO L386 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-11-16 12:21:48,054 INFO L130 PetriNetUnfolder]: 59/561 cut-off events. [2022-11-16 12:21:48,054 INFO L131 PetriNetUnfolder]: For 5/35 co-relation queries the response was YES. [2022-11-16 12:21:48,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 561 events. 59/561 cut-off events. For 5/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3024 event pairs, 10 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 696. Up to 58 conditions per place. [2022-11-16 12:21:48,058 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-11-16 12:21:48,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 387 flow [2022-11-16 12:21:48,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:21:48,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:21:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-11-16 12:21:48,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8402417962003454 [2022-11-16 12:21:48,061 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-11-16 12:21:48,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-11-16 12:21:48,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:21:48,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-11-16 12:21:48,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states 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 12:21:48,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:48,067 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states 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 12:21:48,068 INFO L175 Difference]: Start difference. First operand has 155 places, 146 transitions, 341 flow. Second operand 6 states and 973 transitions. [2022-11-16 12:21:48,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 387 flow [2022-11-16 12:21:48,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 145 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:21:48,071 INFO L231 Difference]: Finished difference. Result has 155 places, 0 transitions, 0 flow [2022-11-16 12:21:48,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=155, PETRI_TRANSITIONS=0} [2022-11-16 12:21:48,072 INFO L288 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-11-16 12:21:48,072 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 0 transitions, 0 flow [2022-11-16 12:21:48,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 12:21:48,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-11-16 12:21:48,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-16 12:21:48,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-16 12:21:48,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-16 12:21:48,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-16 12:21:48,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-11-16 12:21:48,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-11-16 12:21:48,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-16 12:21:48,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-11-16 12:21:48,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-11-16 12:21:48,081 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-11-16 12:21:48,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-11-16 12:21:48,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-11-16 12:21:48,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-11-16 12:21:48,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-16 12:21:48,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-16 12:21:48,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-16 12:21:48,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-16 12:21:48,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:21:48,085 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:21:48,092 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:21:48,092 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:21:48,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:21:48 BasicIcfg [2022-11-16 12:21:48,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:21:48,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:21:48,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:21:48,100 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:21:48,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:21:42" (3/4) ... [2022-11-16 12:21:48,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:21:48,110 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:21:48,110 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:21:48,110 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 12:21:48,117 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-16 12:21:48,117 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:21:48,117 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:21:48,117 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:21:48,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:21:48,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:21:48,163 INFO L158 Benchmark]: Toolchain (without parser) took 6983.89ms. Allocated memory was 107.0MB in the beginning and 211.8MB in the end (delta: 104.9MB). Free memory was 68.1MB in the beginning and 94.6MB in the end (delta: -26.5MB). Peak memory consumption was 78.6MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,164 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:21:48,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.12ms. Allocated memory is still 107.0MB. Free memory was 67.9MB in the beginning and 80.4MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.81ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,165 INFO L158 Benchmark]: Boogie Preprocessor took 67.31ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,165 INFO L158 Benchmark]: RCFGBuilder took 767.34ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 58.7MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,166 INFO L158 Benchmark]: TraceAbstraction took 5616.48ms. Allocated memory was 107.0MB in the beginning and 211.8MB in the end (delta: 104.9MB). Free memory was 58.2MB in the beginning and 97.8MB in the end (delta: -39.6MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,166 INFO L158 Benchmark]: Witness Printer took 62.96ms. Allocated memory is still 211.8MB. Free memory was 97.8MB in the beginning and 94.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:21:48,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.12ms. Allocated memory is still 107.0MB. Free memory was 67.9MB in the beginning and 80.4MB in the end (delta: -12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.81ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.31ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 767.34ms. Allocated memory is still 107.0MB. Free memory was 76.7MB in the beginning and 58.7MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5616.48ms. Allocated memory was 107.0MB in the beginning and 211.8MB in the end (delta: 104.9MB). Free memory was 58.2MB in the beginning and 97.8MB in the end (delta: -39.6MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 62.96ms. Allocated memory is still 211.8MB. Free memory was 97.8MB in the beginning and 94.6MB in the end (delta: 3.2MB). 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: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: 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: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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, 262 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: 5.4s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 115 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=359occurred in iteration=9, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 828 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 813 ConstructedInterpolants, 0 QuantifiedInterpolants, 1080 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:21:48,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91ff4819-7c3b-4d66-9742-864143e2e5fb/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