./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:11:26,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:11:26,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:11:26,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:11:26,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:11:26,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:11:26,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:11:26,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:11:26,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:11:26,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:11:26,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:11:26,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:11:26,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:11:26,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:11:26,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:11:26,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:11:26,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:11:26,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:11:26,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:11:26,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:11:26,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:11:26,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:11:26,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:11:26,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:11:26,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:11:26,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:11:26,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:11:26,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:11:26,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:11:26,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:11:26,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:11:26,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:11:26,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:11:26,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:11:26,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:11:26,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:11:26,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:11:26,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:11:26,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:11:26,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:11:26,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:11:26,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:11:26,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:11:26,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:11:26,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:11:26,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:11:26,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:11:26,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:11:26,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:11:26,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:11:26,955 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:11:26,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:11:26,956 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:11:26,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:11:26,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:11:26,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:11:26,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:11:26,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:11:26,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:11:26,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:11:26,958 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:11:26,959 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:11:26,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:11:26,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:11:26,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:11:26,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:11:26,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:11:26,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:11:26,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:26,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:11:26,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:11:26,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:11:26,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:11:26,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:11:26,964 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:11:26,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:11:26,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:11:26,965 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_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4221a6bcee4165c3049aa9b16a70613c9e290b9c0a4ff35026a6f2dcff16f9ff [2022-11-18 21:11:27,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:11:27,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:11:27,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:11:27,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:11:27,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:11:27,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-18 21:11:27,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/data/10b434ecd/6cd12aa653204e2b8389d0e1023a98d0/FLAG97cca2e7d [2022-11-18 21:11:28,167 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:11:28,168 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2022-11-18 21:11:28,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/data/10b434ecd/6cd12aa653204e2b8389d0e1023a98d0/FLAG97cca2e7d [2022-11-18 21:11:28,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/data/10b434ecd/6cd12aa653204e2b8389d0e1023a98d0 [2022-11-18 21:11:28,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:11:28,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:11:28,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:28,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:11:28,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:11:28,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:28,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726b4bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28, skipping insertion in model container [2022-11-18 21:11:28,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:28,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:11:28,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:11:28,873 WARN L234 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_578ef814-e563-4ff8-a2a9-283b7d610da9/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-18 21:11:28,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:28,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:11:28,930 WARN L234 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_578ef814-e563-4ff8-a2a9-283b7d610da9/sv-benchmarks/c/weaver/chl-match-trans.wvr.c[2954,2967] [2022-11-18 21:11:28,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:11:28,951 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:11:28,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28 WrapperNode [2022-11-18 21:11:28,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:11:28,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:28,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:11:28,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:11:28,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:28,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,021 INFO L138 Inliner]: procedures = 23, calls = 33, calls flagged for inlining = 11, calls inlined = 21, statements flattened = 339 [2022-11-18 21:11:29,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:11:29,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:11:29,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:11:29,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:11:29,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:11:29,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:11:29,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:11:29,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:11:29,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (1/1) ... [2022-11-18 21:11:29,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:11:29,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:29,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:11:29,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:11:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:11:29,229 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:11:29,229 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:11:29,230 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:11:29,230 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:11:29,232 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 21:11:29,232 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 21:11:29,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:11:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:11:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:11:29,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:11:29,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:11:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:11:29,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:11:29,237 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:11:29,440 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:11:29,442 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:11:30,326 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:11:30,343 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:11:30,343 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:11:30,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:30 BoogieIcfgContainer [2022-11-18 21:11:30,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:11:30,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:11:30,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:11:30,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:11:30,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:11:28" (1/3) ... [2022-11-18 21:11:30,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8d7700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:30, skipping insertion in model container [2022-11-18 21:11:30,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:11:28" (2/3) ... [2022-11-18 21:11:30,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8d7700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:11:30, skipping insertion in model container [2022-11-18 21:11:30,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:30" (3/3) ... [2022-11-18 21:11:30,362 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2022-11-18 21:11:30,373 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:11:30,387 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:11:30,387 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-18 21:11:30,387 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:11:30,567 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 21:11:30,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 464 transitions, 952 flow [2022-11-18 21:11:31,057 INFO L130 PetriNetUnfolder]: 18/461 cut-off events. [2022-11-18 21:11:31,058 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 21:11:31,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 461 events. 18/461 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 817 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 308. Up to 2 conditions per place. [2022-11-18 21:11:31,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 464 transitions, 952 flow [2022-11-18 21:11:31,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 431 places, 437 transitions, 892 flow [2022-11-18 21:11:31,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:11:31,137 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;@78efa7e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:11:31,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2022-11-18 21:11:31,147 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-18 21:11:31,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:11:31,148 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:31,149 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] [2022-11-18 21:11:31,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:31,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash 711189037, now seen corresponding path program 1 times [2022-11-18 21:11:31,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:31,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119863030] [2022-11-18 21:11:31,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:31,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:31,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119863030] [2022-11-18 21:11:31,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119863030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:31,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:31,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:31,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347657353] [2022-11-18 21:11:31,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:31,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:31,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:31,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:31,583 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-18 21:11:31,590 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 437 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:31,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:31,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-18 21:11:31,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:32,236 INFO L130 PetriNetUnfolder]: 76/936 cut-off events. [2022-11-18 21:11:32,236 INFO L131 PetriNetUnfolder]: For 99/138 co-relation queries the response was YES. [2022-11-18 21:11:32,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 936 events. 76/936 cut-off events. For 99/138 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4184 event pairs, 60 based on Foata normal form. 244/1001 useless extension candidates. Maximal degree in co-relation 860. Up to 142 conditions per place. [2022-11-18 21:11:32,263 INFO L137 encePairwiseOnDemand]: 449/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-18 21:11:32,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 424 transitions, 912 flow [2022-11-18 21:11:32,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:32,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:32,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:32,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,327 INFO L175 Difference]: Start difference. First operand has 431 places, 437 transitions, 892 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:32,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 424 transitions, 912 flow [2022-11-18 21:11:32,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 424 transitions, 900 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 21:11:32,352 INFO L231 Difference]: Finished difference. Result has 426 places, 424 transitions, 858 flow [2022-11-18 21:11:32,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=426, PETRI_TRANSITIONS=424} [2022-11-18 21:11:32,360 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -5 predicate places. [2022-11-18 21:11:32,361 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 424 transitions, 858 flow [2022-11-18 21:11:32,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:32,363 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] [2022-11-18 21:11:32,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:11:32,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash -308003838, now seen corresponding path program 1 times [2022-11-18 21:11:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:32,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216394753] [2022-11-18 21:11:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:32,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:32,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:32,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:32,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216394753] [2022-11-18 21:11:32,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216394753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:32,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:32,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:32,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650007799] [2022-11-18 21:11:32,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:32,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:32,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:32,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:32,481 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:32,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 424 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:32,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:32,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:32,872 INFO L130 PetriNetUnfolder]: 32/1067 cut-off events. [2022-11-18 21:11:32,872 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 21:11:32,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 1067 events. 32/1067 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4555 event pairs, 21 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 1100. Up to 58 conditions per place. [2022-11-18 21:11:32,900 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-18 21:11:32,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 423 transitions, 890 flow [2022-11-18 21:11:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:32,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:32,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:32,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:32,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:32,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,919 INFO L175 Difference]: Start difference. First operand has 426 places, 424 transitions, 858 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:32,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 423 transitions, 890 flow [2022-11-18 21:11:32,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 423 transitions, 886 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:32,960 INFO L231 Difference]: Finished difference. Result has 425 places, 423 transitions, 856 flow [2022-11-18 21:11:32,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=425, PETRI_TRANSITIONS=423} [2022-11-18 21:11:32,962 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -6 predicate places. [2022-11-18 21:11:32,962 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 423 transitions, 856 flow [2022-11-18 21:11:32,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:32,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:32,963 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] [2022-11-18 21:11:32,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:11:32,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:32,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:32,965 INFO L85 PathProgramCache]: Analyzing trace with hash 943443519, now seen corresponding path program 1 times [2022-11-18 21:11:32,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:32,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981199616] [2022-11-18 21:11:32,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:32,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:33,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:33,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:33,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981199616] [2022-11-18 21:11:33,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981199616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:33,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:33,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:33,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313942337] [2022-11-18 21:11:33,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:33,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:33,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:33,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:33,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 423 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:33,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:33,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:33,504 INFO L130 PetriNetUnfolder]: 33/1144 cut-off events. [2022-11-18 21:11:33,504 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 21:11:33,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 1144 events. 33/1144 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5222 event pairs, 21 based on Foata normal form. 0/972 useless extension candidates. Maximal degree in co-relation 1170. Up to 58 conditions per place. [2022-11-18 21:11:33,533 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/422 dead transitions. [2022-11-18 21:11:33,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 422 transitions, 888 flow [2022-11-18 21:11:33,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:33,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:33,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:33,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:33,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:33,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:33,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:33,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,550 INFO L175 Difference]: Start difference. First operand has 425 places, 423 transitions, 856 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:33,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 422 transitions, 888 flow [2022-11-18 21:11:33,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 422 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:33,562 INFO L231 Difference]: Finished difference. Result has 424 places, 422 transitions, 854 flow [2022-11-18 21:11:33,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=854, PETRI_PLACES=424, PETRI_TRANSITIONS=422} [2022-11-18 21:11:33,564 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -7 predicate places. [2022-11-18 21:11:33,564 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 422 transitions, 854 flow [2022-11-18 21:11:33,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:33,566 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:33,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:11:33,566 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:33,567 INFO L85 PathProgramCache]: Analyzing trace with hash -786221532, now seen corresponding path program 1 times [2022-11-18 21:11:33,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:33,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559275880] [2022-11-18 21:11:33,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:33,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:33,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:33,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559275880] [2022-11-18 21:11:33,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559275880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:33,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:33,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:33,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378759037] [2022-11-18 21:11:33,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:33,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:33,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:33,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-18 21:11:33,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 422 transitions, 854 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:33,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:33,690 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-18 21:11:33,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:34,201 INFO L130 PetriNetUnfolder]: 158/1391 cut-off events. [2022-11-18 21:11:34,202 INFO L131 PetriNetUnfolder]: For 14/56 co-relation queries the response was YES. [2022-11-18 21:11:34,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1709 conditions, 1391 events. 158/1391 cut-off events. For 14/56 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 8163 event pairs, 132 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 1655. Up to 255 conditions per place. [2022-11-18 21:11:34,237 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-11-18 21:11:34,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 421 transitions, 898 flow [2022-11-18 21:11:34,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1302 transitions. [2022-11-18 21:11:34,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353448275862069 [2022-11-18 21:11:34,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1302 transitions. [2022-11-18 21:11:34,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1302 transitions. [2022-11-18 21:11:34,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:34,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1302 transitions. [2022-11-18 21:11:34,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,252 INFO L175 Difference]: Start difference. First operand has 424 places, 422 transitions, 854 flow. Second operand 3 states and 1302 transitions. [2022-11-18 21:11:34,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 421 transitions, 898 flow [2022-11-18 21:11:34,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 421 transitions, 894 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:34,262 INFO L231 Difference]: Finished difference. Result has 423 places, 421 transitions, 852 flow [2022-11-18 21:11:34,263 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=852, PETRI_PLACES=423, PETRI_TRANSITIONS=421} [2022-11-18 21:11:34,264 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -8 predicate places. [2022-11-18 21:11:34,264 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 421 transitions, 852 flow [2022-11-18 21:11:34,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,265 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:34,265 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] [2022-11-18 21:11:34,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:11:34,266 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:34,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:34,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1675216000, now seen corresponding path program 1 times [2022-11-18 21:11:34,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:34,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463496116] [2022-11-18 21:11:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:34,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:34,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:34,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463496116] [2022-11-18 21:11:34,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463496116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:34,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:34,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:34,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815466547] [2022-11-18 21:11:34,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:34,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:34,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 421 transitions, 852 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:34,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:34,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:34,731 INFO L130 PetriNetUnfolder]: 55/1306 cut-off events. [2022-11-18 21:11:34,731 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-18 21:11:34,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1418 conditions, 1306 events. 55/1306 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7680 event pairs, 39 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1357. Up to 85 conditions per place. [2022-11-18 21:11:34,760 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-18 21:11:34,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 420 transitions, 884 flow [2022-11-18 21:11:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:34,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:34,764 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:34,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:34,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:34,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:34,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:34,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,774 INFO L175 Difference]: Start difference. First operand has 423 places, 421 transitions, 852 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:34,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 420 transitions, 884 flow [2022-11-18 21:11:34,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 420 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:34,785 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 850 flow [2022-11-18 21:11:34,786 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-18 21:11:34,789 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -9 predicate places. [2022-11-18 21:11:34,790 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 850 flow [2022-11-18 21:11:34,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:34,792 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] [2022-11-18 21:11:34,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:11:34,792 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash -983644613, now seen corresponding path program 1 times [2022-11-18 21:11:34,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:34,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819478292] [2022-11-18 21:11:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:34,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:34,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:34,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819478292] [2022-11-18 21:11:34,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819478292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:34,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:34,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:34,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668648179] [2022-11-18 21:11:34,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:34,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:34,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:34,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:34,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:34,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:34,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:34,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:34,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:34,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:35,302 INFO L130 PetriNetUnfolder]: 55/1275 cut-off events. [2022-11-18 21:11:35,302 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-18 21:11:35,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 1275 events. 55/1275 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7418 event pairs, 39 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1319. Up to 85 conditions per place. [2022-11-18 21:11:35,327 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-18 21:11:35,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 882 flow [2022-11-18 21:11:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:35,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:35,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:35,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:35,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:35,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:35,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:35,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,341 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 850 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:35,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 882 flow [2022-11-18 21:11:35,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 419 transitions, 878 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:35,350 INFO L231 Difference]: Finished difference. Result has 421 places, 419 transitions, 848 flow [2022-11-18 21:11:35,351 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=421, PETRI_TRANSITIONS=419} [2022-11-18 21:11:35,354 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-18 21:11:35,355 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 419 transitions, 848 flow [2022-11-18 21:11:35,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,357 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:35,357 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] [2022-11-18 21:11:35,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:11:35,357 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:35,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash 912186274, now seen corresponding path program 1 times [2022-11-18 21:11:35,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:35,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434453883] [2022-11-18 21:11:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:35,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:35,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:35,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434453883] [2022-11-18 21:11:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434453883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:35,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:35,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:35,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697379857] [2022-11-18 21:11:35,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:35,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:35,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:35,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:35,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:35,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 426 out of 464 [2022-11-18 21:11:35,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 419 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:35,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 426 of 464 [2022-11-18 21:11:35,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:35,877 INFO L130 PetriNetUnfolder]: 153/1066 cut-off events. [2022-11-18 21:11:35,878 INFO L131 PetriNetUnfolder]: For 57/63 co-relation queries the response was YES. [2022-11-18 21:11:35,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1066 events. 153/1066 cut-off events. For 57/63 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6151 event pairs, 132 based on Foata normal form. 0/872 useless extension candidates. Maximal degree in co-relation 1256. Up to 250 conditions per place. [2022-11-18 21:11:35,901 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 21 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 21:11:35,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 418 transitions, 892 flow [2022-11-18 21:11:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:35,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1302 transitions. [2022-11-18 21:11:35,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353448275862069 [2022-11-18 21:11:35,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1302 transitions. [2022-11-18 21:11:35,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1302 transitions. [2022-11-18 21:11:35,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:35,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1302 transitions. [2022-11-18 21:11:35,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,916 INFO L175 Difference]: Start difference. First operand has 421 places, 419 transitions, 848 flow. Second operand 3 states and 1302 transitions. [2022-11-18 21:11:35,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 418 transitions, 892 flow [2022-11-18 21:11:35,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 418 transitions, 888 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:35,927 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 846 flow [2022-11-18 21:11:35,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2022-11-18 21:11:35,929 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-18 21:11:35,929 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 846 flow [2022-11-18 21:11:35,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:35,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:35,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:11:35,932 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:35,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:35,932 INFO L85 PathProgramCache]: Analyzing trace with hash 301979051, now seen corresponding path program 1 times [2022-11-18 21:11:35,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:35,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66529052] [2022-11-18 21:11:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:35,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:35,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:35,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:35,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:35,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66529052] [2022-11-18 21:11:35,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66529052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:35,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:35,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:35,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639356568] [2022-11-18 21:11:35,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:35,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:35,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:35,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:35,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:35,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:35,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:35,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:35,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:35,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:36,394 INFO L130 PetriNetUnfolder]: 54/1129 cut-off events. [2022-11-18 21:11:36,394 INFO L131 PetriNetUnfolder]: For 21/39 co-relation queries the response was YES. [2022-11-18 21:11:36,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 1129 events. 54/1129 cut-off events. For 21/39 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5477 event pairs, 39 based on Foata normal form. 0/946 useless extension candidates. Maximal degree in co-relation 1144. Up to 85 conditions per place. [2022-11-18 21:11:36,425 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-18 21:11:36,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 417 transitions, 878 flow [2022-11-18 21:11:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:36,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:36,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:36,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:36,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,441 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 846 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:36,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 417 transitions, 878 flow [2022-11-18 21:11:36,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 417 transitions, 874 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:36,452 INFO L231 Difference]: Finished difference. Result has 419 places, 417 transitions, 844 flow [2022-11-18 21:11:36,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=419, PETRI_TRANSITIONS=417} [2022-11-18 21:11:36,454 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-18 21:11:36,454 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 417 transitions, 844 flow [2022-11-18 21:11:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:36,456 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] [2022-11-18 21:11:36,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:11:36,456 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:36,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1472285165, now seen corresponding path program 1 times [2022-11-18 21:11:36,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:36,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30470757] [2022-11-18 21:11:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:36,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:36,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:36,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:36,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30470757] [2022-11-18 21:11:36,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30470757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:36,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:36,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:36,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400507047] [2022-11-18 21:11:36,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:36,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:36,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:36,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:36,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:36,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 464 [2022-11-18 21:11:36,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 417 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:36,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 464 [2022-11-18 21:11:36,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:36,913 INFO L130 PetriNetUnfolder]: 54/1098 cut-off events. [2022-11-18 21:11:36,913 INFO L131 PetriNetUnfolder]: For 21/38 co-relation queries the response was YES. [2022-11-18 21:11:36,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 1098 events. 54/1098 cut-off events. For 21/38 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5331 event pairs, 39 based on Foata normal form. 0/927 useless extension candidates. Maximal degree in co-relation 1106. Up to 85 conditions per place. [2022-11-18 21:11:36,941 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 15 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2022-11-18 21:11:36,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 416 transitions, 876 flow [2022-11-18 21:11:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:36,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:36,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2022-11-18 21:11:36,946 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439655172413793 [2022-11-18 21:11:36,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:36,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2022-11-18 21:11:36,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,978 INFO L175 Difference]: Start difference. First operand has 419 places, 417 transitions, 844 flow. Second operand 3 states and 1314 transitions. [2022-11-18 21:11:36,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 416 transitions, 876 flow [2022-11-18 21:11:36,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 416 transitions, 872 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:36,993 INFO L231 Difference]: Finished difference. Result has 418 places, 416 transitions, 842 flow [2022-11-18 21:11:36,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=418, PETRI_TRANSITIONS=416} [2022-11-18 21:11:36,995 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-18 21:11:36,996 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 416 transitions, 842 flow [2022-11-18 21:11:36,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:36,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:36,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:36,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:11:36,998 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:36,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:36,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1245861189, now seen corresponding path program 1 times [2022-11-18 21:11:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:36,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179947228] [2022-11-18 21:11:36,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:37,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:37,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:37,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179947228] [2022-11-18 21:11:37,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179947228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:37,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:37,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:37,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559718462] [2022-11-18 21:11:37,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:37,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:37,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:37,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:37,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 416 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:37,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:37,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:37,439 INFO L130 PetriNetUnfolder]: 23/1057 cut-off events. [2022-11-18 21:11:37,439 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 21:11:37,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 1057 events. 23/1057 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4559 event pairs, 8 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1008. Up to 31 conditions per place. [2022-11-18 21:11:37,468 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 21:11:37,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 418 transitions, 880 flow [2022-11-18 21:11:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:37,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:37,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:37,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,484 INFO L175 Difference]: Start difference. First operand has 418 places, 416 transitions, 842 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:37,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 418 transitions, 880 flow [2022-11-18 21:11:37,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 418 transitions, 876 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:37,495 INFO L231 Difference]: Finished difference. Result has 417 places, 416 transitions, 848 flow [2022-11-18 21:11:37,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=417, PETRI_TRANSITIONS=416} [2022-11-18 21:11:37,497 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-18 21:11:37,497 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 416 transitions, 848 flow [2022-11-18 21:11:37,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:37,499 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:37,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:11:37,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:37,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:37,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1023306077, now seen corresponding path program 1 times [2022-11-18 21:11:37,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:37,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645998533] [2022-11-18 21:11:37,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:37,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:37,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:37,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645998533] [2022-11-18 21:11:37,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645998533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:37,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:37,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:37,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899040886] [2022-11-18 21:11:37,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:37,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:37,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:37,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 416 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:37,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:37,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:37,932 INFO L130 PetriNetUnfolder]: 25/1121 cut-off events. [2022-11-18 21:11:37,932 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 21:11:37,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 1121 events. 25/1121 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5072 event pairs, 6 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 978. Up to 33 conditions per place. [2022-11-18 21:11:37,966 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 21:11:37,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 418 transitions, 886 flow [2022-11-18 21:11:37,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:37,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:37,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:37,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:37,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:37,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,982 INFO L175 Difference]: Start difference. First operand has 417 places, 416 transitions, 848 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:37,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 418 transitions, 886 flow [2022-11-18 21:11:37,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 418 transitions, 886 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:37,992 INFO L231 Difference]: Finished difference. Result has 418 places, 416 transitions, 858 flow [2022-11-18 21:11:37,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=418, PETRI_TRANSITIONS=416} [2022-11-18 21:11:37,994 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-18 21:11:37,995 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 416 transitions, 858 flow [2022-11-18 21:11:37,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:37,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:37,996 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:37,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:11:37,997 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:37,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:37,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1762383046, now seen corresponding path program 1 times [2022-11-18 21:11:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:37,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782708447] [2022-11-18 21:11:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:38,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:38,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:38,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782708447] [2022-11-18 21:11:38,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782708447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:38,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:38,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:38,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27698742] [2022-11-18 21:11:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:38,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:38,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:38,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:38,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:38,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 416 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:38,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:38,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:38,458 INFO L130 PetriNetUnfolder]: 37/1218 cut-off events. [2022-11-18 21:11:38,459 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-18 21:11:38,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1297 conditions, 1218 events. 37/1218 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6997 event pairs, 5 based on Foata normal form. 0/1051 useless extension candidates. Maximal degree in co-relation 1099. Up to 43 conditions per place. [2022-11-18 21:11:38,481 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 21:11:38,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 418 transitions, 896 flow [2022-11-18 21:11:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:38,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:38,487 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:38,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:38,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:38,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:38,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,497 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,497 INFO L175 Difference]: Start difference. First operand has 418 places, 416 transitions, 858 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:38,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 418 transitions, 896 flow [2022-11-18 21:11:38,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 418 transitions, 896 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:38,508 INFO L231 Difference]: Finished difference. Result has 419 places, 416 transitions, 868 flow [2022-11-18 21:11:38,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=419, PETRI_TRANSITIONS=416} [2022-11-18 21:11:38,511 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-18 21:11:38,511 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 416 transitions, 868 flow [2022-11-18 21:11:38,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:38,512 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:38,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:11:38,513 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:38,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:38,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1432956484, now seen corresponding path program 1 times [2022-11-18 21:11:38,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:38,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549721069] [2022-11-18 21:11:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:38,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:38,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:38,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:38,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549721069] [2022-11-18 21:11:38,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549721069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:38,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:38,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:38,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708856154] [2022-11-18 21:11:38,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:38,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:38,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:38,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:38,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:38,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:38,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 416 transitions, 868 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:38,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:38,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:38,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:38,962 INFO L130 PetriNetUnfolder]: 42/1309 cut-off events. [2022-11-18 21:11:38,962 INFO L131 PetriNetUnfolder]: For 6/8 co-relation queries the response was YES. [2022-11-18 21:11:38,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 1309 events. 42/1309 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7904 event pairs, 5 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 1205. Up to 50 conditions per place. [2022-11-18 21:11:38,995 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2022-11-18 21:11:38,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 418 transitions, 906 flow [2022-11-18 21:11:38,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:38,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:39,000 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:39,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:39,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:39,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:39,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:39,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:39,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:39,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:39,010 INFO L175 Difference]: Start difference. First operand has 419 places, 416 transitions, 868 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:39,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 418 transitions, 906 flow [2022-11-18 21:11:39,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 418 transitions, 906 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:39,020 INFO L231 Difference]: Finished difference. Result has 420 places, 416 transitions, 878 flow [2022-11-18 21:11:39,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=420, PETRI_TRANSITIONS=416} [2022-11-18 21:11:39,023 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-18 21:11:39,023 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 416 transitions, 878 flow [2022-11-18 21:11:39,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:39,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:39,025 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:39,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:11:39,025 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:39,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:39,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1685053477, now seen corresponding path program 1 times [2022-11-18 21:11:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:39,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78478947] [2022-11-18 21:11:39,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:39,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:39,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:39,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78478947] [2022-11-18 21:11:39,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78478947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:39,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:39,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:11:39,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909424004] [2022-11-18 21:11:39,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:39,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:39,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:39,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:11:39,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-18 21:11:39,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 416 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 422.0) internal successors, (2532), 6 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:39,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:39,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-18 21:11:39,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:40,061 INFO L130 PetriNetUnfolder]: 12/709 cut-off events. [2022-11-18 21:11:40,061 INFO L131 PetriNetUnfolder]: For 3/25 co-relation queries the response was YES. [2022-11-18 21:11:40,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 709 events. 12/709 cut-off events. For 3/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2797 event pairs, 0 based on Foata normal form. 12/640 useless extension candidates. Maximal degree in co-relation 594. Up to 31 conditions per place. [2022-11-18 21:11:40,081 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 23 selfloop transitions, 4 changer transitions 0/415 dead transitions. [2022-11-18 21:11:40,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 415 transitions, 930 flow [2022-11-18 21:11:40,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:11:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:11:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2548 transitions. [2022-11-18 21:11:40,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9152298850574713 [2022-11-18 21:11:40,089 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2548 transitions. [2022-11-18 21:11:40,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2548 transitions. [2022-11-18 21:11:40,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:40,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2548 transitions. [2022-11-18 21:11:40,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.6666666666667) internal successors, (2548), 6 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,107 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,107 INFO L175 Difference]: Start difference. First operand has 420 places, 416 transitions, 878 flow. Second operand 6 states and 2548 transitions. [2022-11-18 21:11:40,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 415 transitions, 930 flow [2022-11-18 21:11:40,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 415 transitions, 930 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:40,117 INFO L231 Difference]: Finished difference. Result has 424 places, 415 transitions, 884 flow [2022-11-18 21:11:40,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=424, PETRI_TRANSITIONS=415} [2022-11-18 21:11:40,119 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -7 predicate places. [2022-11-18 21:11:40,119 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 415 transitions, 884 flow [2022-11-18 21:11:40,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 422.0) internal successors, (2532), 6 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:40,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:40,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:11:40,122 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:40,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:40,123 INFO L85 PathProgramCache]: Analyzing trace with hash -775763732, now seen corresponding path program 1 times [2022-11-18 21:11:40,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:40,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466123863] [2022-11-18 21:11:40,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:40,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:40,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466123863] [2022-11-18 21:11:40,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466123863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:40,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:40,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:40,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433361826] [2022-11-18 21:11:40,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:40,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:40,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:40,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:40,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:40,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:40,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 415 transitions, 884 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:40,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:40,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:40,693 INFO L130 PetriNetUnfolder]: 61/1683 cut-off events. [2022-11-18 21:11:40,693 INFO L131 PetriNetUnfolder]: For 19/25 co-relation queries the response was YES. [2022-11-18 21:11:40,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1805 conditions, 1683 events. 61/1683 cut-off events. For 19/25 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 10259 event pairs, 10 based on Foata normal form. 0/1438 useless extension candidates. Maximal degree in co-relation 1609. Up to 70 conditions per place. [2022-11-18 21:11:40,720 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-18 21:11:40,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 417 transitions, 922 flow [2022-11-18 21:11:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:40,724 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:40,725 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:40,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:40,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:40,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:40,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,733 INFO L175 Difference]: Start difference. First operand has 424 places, 415 transitions, 884 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:40,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 417 transitions, 922 flow [2022-11-18 21:11:40,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 417 transitions, 915 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:11:40,744 INFO L231 Difference]: Finished difference. Result has 421 places, 415 transitions, 887 flow [2022-11-18 21:11:40,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=421, PETRI_TRANSITIONS=415} [2022-11-18 21:11:40,746 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-18 21:11:40,747 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 415 transitions, 887 flow [2022-11-18 21:11:40,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,748 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:40,748 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:40,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:11:40,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:40,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:40,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1815400238, now seen corresponding path program 1 times [2022-11-18 21:11:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:40,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771596327] [2022-11-18 21:11:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:40,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:40,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:40,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771596327] [2022-11-18 21:11:40,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771596327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:40,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:40,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:40,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885209474] [2022-11-18 21:11:40,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:40,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:40,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:40,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:40,844 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 464 [2022-11-18 21:11:40,846 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 415 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:40,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:40,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 464 [2022-11-18 21:11:40,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:41,373 INFO L130 PetriNetUnfolder]: 70/1891 cut-off events. [2022-11-18 21:11:41,373 INFO L131 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2022-11-18 21:11:41,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 1891 events. 70/1891 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11943 event pairs, 19 based on Foata normal form. 0/1628 useless extension candidates. Maximal degree in co-relation 1844. Up to 80 conditions per place. [2022-11-18 21:11:41,416 INFO L137 encePairwiseOnDemand]: 460/464 looper letters, 14 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-18 21:11:41,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 417 transitions, 925 flow [2022-11-18 21:11:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:41,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:41,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:41,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:41,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:41,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:41,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:41,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:41,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:41,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:41,432 INFO L175 Difference]: Start difference. First operand has 421 places, 415 transitions, 887 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:41,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 417 transitions, 925 flow [2022-11-18 21:11:41,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 417 transitions, 925 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:41,446 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 897 flow [2022-11-18 21:11:41,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=897, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-18 21:11:41,447 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -9 predicate places. [2022-11-18 21:11:41,448 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 897 flow [2022-11-18 21:11:41,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:41,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:41,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:41,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:11:41,450 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:41,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:41,451 INFO L85 PathProgramCache]: Analyzing trace with hash -581130721, now seen corresponding path program 1 times [2022-11-18 21:11:41,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:41,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411307382] [2022-11-18 21:11:41,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:41,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:41,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:41,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411307382] [2022-11-18 21:11:41,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411307382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:41,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:41,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:41,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625593576] [2022-11-18 21:11:41,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:41,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:41,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:41,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:41,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:41,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-18 21:11:41,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 897 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:41,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:41,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-18 21:11:41,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:42,045 INFO L130 PetriNetUnfolder]: 179/1960 cut-off events. [2022-11-18 21:11:42,046 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-11-18 21:11:42,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 1960 events. 179/1960 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 13714 event pairs, 84 based on Foata normal form. 0/1671 useless extension candidates. Maximal degree in co-relation 2062. Up to 293 conditions per place. [2022-11-18 21:11:42,084 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-18 21:11:42,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 415 transitions, 939 flow [2022-11-18 21:11:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-18 21:11:42,089 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-18 21:11:42,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:42,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,099 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 897 flow. Second operand 3 states and 1311 transitions. [2022-11-18 21:11:42,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 415 transitions, 939 flow [2022-11-18 21:11:42,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 415 transitions, 939 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:42,109 INFO L231 Difference]: Finished difference. Result has 421 places, 413 transitions, 903 flow [2022-11-18 21:11:42,109 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=421, PETRI_TRANSITIONS=413} [2022-11-18 21:11:42,110 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-18 21:11:42,110 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 413 transitions, 903 flow [2022-11-18 21:11:42,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:42,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:42,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:11:42,112 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:42,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:42,113 INFO L85 PathProgramCache]: Analyzing trace with hash -120839103, now seen corresponding path program 1 times [2022-11-18 21:11:42,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:42,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078582302] [2022-11-18 21:11:42,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:42,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:42,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:42,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078582302] [2022-11-18 21:11:42,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078582302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:42,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:42,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:42,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129035923] [2022-11-18 21:11:42,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:42,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:42,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:42,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:42,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:42,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-18 21:11:42,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 413 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:42,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-18 21:11:42,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:42,676 INFO L130 PetriNetUnfolder]: 123/1566 cut-off events. [2022-11-18 21:11:42,677 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-18 21:11:42,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 1566 events. 123/1566 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9937 event pairs, 28 based on Foata normal form. 0/1386 useless extension candidates. Maximal degree in co-relation 1581. Up to 152 conditions per place. [2022-11-18 21:11:42,705 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-18 21:11:42,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 413 transitions, 945 flow [2022-11-18 21:11:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-18 21:11:42,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-18 21:11:42,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:42,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-18 21:11:42,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,719 INFO L175 Difference]: Start difference. First operand has 421 places, 413 transitions, 903 flow. Second operand 3 states and 1311 transitions. [2022-11-18 21:11:42,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 413 transitions, 945 flow [2022-11-18 21:11:42,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 413 transitions, 945 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:42,730 INFO L231 Difference]: Finished difference. Result has 420 places, 411 transitions, 909 flow [2022-11-18 21:11:42,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=909, PETRI_PLACES=420, PETRI_TRANSITIONS=411} [2022-11-18 21:11:42,731 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-18 21:11:42,731 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 411 transitions, 909 flow [2022-11-18 21:11:42,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:42,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:42,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:11:42,733 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:42,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:42,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1662174678, now seen corresponding path program 1 times [2022-11-18 21:11:42,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:42,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824190744] [2022-11-18 21:11:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:42,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:42,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:42,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824190744] [2022-11-18 21:11:42,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824190744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:42,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:42,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:42,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594986024] [2022-11-18 21:11:42,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:42,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:42,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:42,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:42,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-18 21:11:42,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 411 transitions, 909 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:42,818 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:42,818 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-18 21:11:42,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:43,265 INFO L130 PetriNetUnfolder]: 60/1569 cut-off events. [2022-11-18 21:11:43,266 INFO L131 PetriNetUnfolder]: For 5/29 co-relation queries the response was YES. [2022-11-18 21:11:43,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1569 events. 60/1569 cut-off events. For 5/29 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9108 event pairs, 8 based on Foata normal form. 5/1418 useless extension candidates. Maximal degree in co-relation 1473. Up to 38 conditions per place. [2022-11-18 21:11:43,302 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 13 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-18 21:11:43,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 412 transitions, 943 flow [2022-11-18 21:11:43,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-18 21:11:43,306 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-18 21:11:43,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-18 21:11:43,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-18 21:11:43,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:43,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-18 21:11:43,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,315 INFO L175 Difference]: Start difference. First operand has 420 places, 411 transitions, 909 flow. Second operand 3 states and 1324 transitions. [2022-11-18 21:11:43,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 412 transitions, 943 flow [2022-11-18 21:11:43,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 412 transitions, 943 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:43,324 INFO L231 Difference]: Finished difference. Result has 421 places, 410 transitions, 911 flow [2022-11-18 21:11:43,325 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=911, PETRI_PLACES=421, PETRI_TRANSITIONS=410} [2022-11-18 21:11:43,327 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -10 predicate places. [2022-11-18 21:11:43,327 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 410 transitions, 911 flow [2022-11-18 21:11:43,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,328 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:43,329 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:43,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:11:43,329 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:43,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:43,330 INFO L85 PathProgramCache]: Analyzing trace with hash -502032096, now seen corresponding path program 1 times [2022-11-18 21:11:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:43,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467386770] [2022-11-18 21:11:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:43,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:43,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467386770] [2022-11-18 21:11:43,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467386770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:43,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:43,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:43,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308635372] [2022-11-18 21:11:43,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:43,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:43,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:43,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:43,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 464 [2022-11-18 21:11:43,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 410 transitions, 911 flow. Second operand has 3 states, 3 states have (on average 431.0) internal successors, (1293), 3 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:43,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:43,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 464 [2022-11-18 21:11:43,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:43,955 INFO L130 PetriNetUnfolder]: 222/1958 cut-off events. [2022-11-18 21:11:43,956 INFO L131 PetriNetUnfolder]: For 49/53 co-relation queries the response was YES. [2022-11-18 21:11:43,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2447 conditions, 1958 events. 222/1958 cut-off events. For 49/53 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12805 event pairs, 76 based on Foata normal form. 0/1763 useless extension candidates. Maximal degree in co-relation 2244. Up to 346 conditions per place. [2022-11-18 21:11:43,993 INFO L137 encePairwiseOnDemand]: 458/464 looper letters, 18 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2022-11-18 21:11:43,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 410 transitions, 953 flow [2022-11-18 21:11:43,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1311 transitions. [2022-11-18 21:11:43,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9418103448275862 [2022-11-18 21:11:43,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1311 transitions. [2022-11-18 21:11:43,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1311 transitions. [2022-11-18 21:11:44,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:44,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1311 transitions. [2022-11-18 21:11:44,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,008 INFO L175 Difference]: Start difference. First operand has 421 places, 410 transitions, 911 flow. Second operand 3 states and 1311 transitions. [2022-11-18 21:11:44,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 410 transitions, 953 flow [2022-11-18 21:11:44,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 410 transitions, 949 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:44,017 INFO L231 Difference]: Finished difference. Result has 418 places, 408 transitions, 913 flow [2022-11-18 21:11:44,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=418, PETRI_TRANSITIONS=408} [2022-11-18 21:11:44,018 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-18 21:11:44,018 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 408 transitions, 913 flow [2022-11-18 21:11:44,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.0) internal successors, (1293), 3 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,019 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:44,020 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:11:44,020 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1079522985, now seen corresponding path program 1 times [2022-11-18 21:11:44,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50234911] [2022-11-18 21:11:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:44,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:44,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:44,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:44,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50234911] [2022-11-18 21:11:44,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50234911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:44,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:44,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:44,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412485290] [2022-11-18 21:11:44,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:44,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:44,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:44,111 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-18 21:11:44,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 408 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:44,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-18 21:11:44,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:44,625 INFO L130 PetriNetUnfolder]: 66/1609 cut-off events. [2022-11-18 21:11:44,625 INFO L131 PetriNetUnfolder]: For 9/24 co-relation queries the response was YES. [2022-11-18 21:11:44,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1609 events. 66/1609 cut-off events. For 9/24 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9322 event pairs, 6 based on Foata normal form. 2/1487 useless extension candidates. Maximal degree in co-relation 1645. Up to 48 conditions per place. [2022-11-18 21:11:44,651 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 13 selfloop transitions, 2 changer transitions 0/409 dead transitions. [2022-11-18 21:11:44,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 409 transitions, 947 flow [2022-11-18 21:11:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-18 21:11:44,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-18 21:11:44,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-18 21:11:44,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-18 21:11:44,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:44,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-18 21:11:44,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,668 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,668 INFO L175 Difference]: Start difference. First operand has 418 places, 408 transitions, 913 flow. Second operand 3 states and 1324 transitions. [2022-11-18 21:11:44,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 409 transitions, 947 flow [2022-11-18 21:11:44,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 409 transitions, 947 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:11:44,679 INFO L231 Difference]: Finished difference. Result has 419 places, 407 transitions, 915 flow [2022-11-18 21:11:44,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=915, PETRI_PLACES=419, PETRI_TRANSITIONS=407} [2022-11-18 21:11:44,682 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -12 predicate places. [2022-11-18 21:11:44,682 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 407 transitions, 915 flow [2022-11-18 21:11:44,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:44,683 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:44,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:11:44,684 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:44,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:44,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2101790978, now seen corresponding path program 1 times [2022-11-18 21:11:44,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:44,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805729109] [2022-11-18 21:11:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:44,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:44,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:44,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:44,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805729109] [2022-11-18 21:11:44,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805729109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:44,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:44,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:44,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145000735] [2022-11-18 21:11:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:44,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:44,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:44,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:44,779 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 464 [2022-11-18 21:11:44,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 407 transitions, 915 flow. Second operand has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:44,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:44,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 464 [2022-11-18 21:11:44,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:45,316 INFO L130 PetriNetUnfolder]: 74/1320 cut-off events. [2022-11-18 21:11:45,317 INFO L131 PetriNetUnfolder]: For 33/42 co-relation queries the response was YES. [2022-11-18 21:11:45,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1320 events. 74/1320 cut-off events. For 33/42 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7013 event pairs, 14 based on Foata normal form. 1/1232 useless extension candidates. Maximal degree in co-relation 1546. Up to 77 conditions per place. [2022-11-18 21:11:45,352 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 12 selfloop transitions, 2 changer transitions 0/408 dead transitions. [2022-11-18 21:11:45,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 408 transitions, 947 flow [2022-11-18 21:11:45,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:45,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-18 21:11:45,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504310344827587 [2022-11-18 21:11:45,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-18 21:11:45,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-18 21:11:45,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:45,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-18 21:11:45,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,368 INFO L175 Difference]: Start difference. First operand has 419 places, 407 transitions, 915 flow. Second operand 3 states and 1323 transitions. [2022-11-18 21:11:45,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 408 transitions, 947 flow [2022-11-18 21:11:45,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 408 transitions, 943 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:45,378 INFO L231 Difference]: Finished difference. Result has 418 places, 406 transitions, 913 flow [2022-11-18 21:11:45,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=418, PETRI_TRANSITIONS=406} [2022-11-18 21:11:45,380 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -13 predicate places. [2022-11-18 21:11:45,380 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 406 transitions, 913 flow [2022-11-18 21:11:45,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:45,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:45,384 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:45,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 21:11:45,384 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:45,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:45,385 INFO L85 PathProgramCache]: Analyzing trace with hash 419822027, now seen corresponding path program 1 times [2022-11-18 21:11:45,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:45,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792294281] [2022-11-18 21:11:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:45,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:46,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792294281] [2022-11-18 21:11:46,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792294281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:46,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:46,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:11:46,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513666314] [2022-11-18 21:11:46,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:46,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:46,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:11:46,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-18 21:11:46,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 406 transitions, 913 flow. Second operand has 6 states, 6 states have (on average 423.0) internal successors, (2538), 6 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:46,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-18 21:11:46,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:46,736 INFO L130 PetriNetUnfolder]: 46/1184 cut-off events. [2022-11-18 21:11:46,736 INFO L131 PetriNetUnfolder]: For 5/57 co-relation queries the response was YES. [2022-11-18 21:11:46,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1184 events. 46/1184 cut-off events. For 5/57 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5998 event pairs, 0 based on Foata normal form. 8/1122 useless extension candidates. Maximal degree in co-relation 1287. Up to 38 conditions per place. [2022-11-18 21:11:46,765 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 22 selfloop transitions, 4 changer transitions 0/405 dead transitions. [2022-11-18 21:11:46,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 405 transitions, 963 flow [2022-11-18 21:11:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:11:46,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:11:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2547 transitions. [2022-11-18 21:11:46,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9148706896551724 [2022-11-18 21:11:46,774 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2547 transitions. [2022-11-18 21:11:46,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2547 transitions. [2022-11-18 21:11:46,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:46,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2547 transitions. [2022-11-18 21:11:46,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.5) internal successors, (2547), 6 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,794 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,795 INFO L175 Difference]: Start difference. First operand has 418 places, 406 transitions, 913 flow. Second operand 6 states and 2547 transitions. [2022-11-18 21:11:46,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 405 transitions, 963 flow [2022-11-18 21:11:46,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 405 transitions, 959 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:11:46,805 INFO L231 Difference]: Finished difference. Result has 420 places, 405 transitions, 915 flow [2022-11-18 21:11:46,806 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=915, PETRI_PLACES=420, PETRI_TRANSITIONS=405} [2022-11-18 21:11:46,807 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-18 21:11:46,807 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 405 transitions, 915 flow [2022-11-18 21:11:46,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 423.0) internal successors, (2538), 6 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:46,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:46,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:46,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 21:11:46,810 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:46,811 INFO L85 PathProgramCache]: Analyzing trace with hash -689643887, now seen corresponding path program 1 times [2022-11-18 21:11:46,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:46,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395228295] [2022-11-18 21:11:46,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:46,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:47,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:47,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395228295] [2022-11-18 21:11:47,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395228295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:47,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:47,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:11:47,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339827702] [2022-11-18 21:11:47,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:47,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:47,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:47,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:47,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:11:47,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 464 [2022-11-18 21:11:47,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 405 transitions, 915 flow. Second operand has 6 states, 6 states have (on average 424.0) internal successors, (2544), 6 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:47,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:47,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 464 [2022-11-18 21:11:47,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:48,164 INFO L130 PetriNetUnfolder]: 46/1183 cut-off events. [2022-11-18 21:11:48,164 INFO L131 PetriNetUnfolder]: For 8/61 co-relation queries the response was YES. [2022-11-18 21:11:48,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1396 conditions, 1183 events. 46/1183 cut-off events. For 8/61 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5995 event pairs, 0 based on Foata normal form. 4/1118 useless extension candidates. Maximal degree in co-relation 1310. Up to 38 conditions per place. [2022-11-18 21:11:48,195 INFO L137 encePairwiseOnDemand]: 459/464 looper letters, 21 selfloop transitions, 4 changer transitions 0/404 dead transitions. [2022-11-18 21:11:48,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 404 transitions, 963 flow [2022-11-18 21:11:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:11:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:11:48,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2546 transitions. [2022-11-18 21:11:48,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9145114942528736 [2022-11-18 21:11:48,204 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2546 transitions. [2022-11-18 21:11:48,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2546 transitions. [2022-11-18 21:11:48,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:48,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2546 transitions. [2022-11-18 21:11:48,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.3333333333333) internal successors, (2546), 6 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,220 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 464.0) internal successors, (3248), 7 states have internal predecessors, (3248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,220 INFO L175 Difference]: Start difference. First operand has 420 places, 405 transitions, 915 flow. Second operand 6 states and 2546 transitions. [2022-11-18 21:11:48,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 404 transitions, 963 flow [2022-11-18 21:11:48,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 404 transitions, 956 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:11:48,230 INFO L231 Difference]: Finished difference. Result has 420 places, 404 transitions, 914 flow [2022-11-18 21:11:48,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=420, PETRI_TRANSITIONS=404} [2022-11-18 21:11:48,231 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -11 predicate places. [2022-11-18 21:11:48,232 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 404 transitions, 914 flow [2022-11-18 21:11:48,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 424.0) internal successors, (2544), 6 states have internal predecessors, (2544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:48,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:48,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 21:11:48,234 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -461798098, now seen corresponding path program 1 times [2022-11-18 21:11:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:48,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770879491] [2022-11-18 21:11:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:48,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:48,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:48,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770879491] [2022-11-18 21:11:48,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770879491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:48,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:48,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:48,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144572032] [2022-11-18 21:11:48,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:48,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:48,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:48,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:48,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:48,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-18 21:11:48,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 404 transitions, 914 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:48,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-18 21:11:48,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:48,844 INFO L130 PetriNetUnfolder]: 64/1603 cut-off events. [2022-11-18 21:11:48,844 INFO L131 PetriNetUnfolder]: For 5/17 co-relation queries the response was YES. [2022-11-18 21:11:48,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1859 conditions, 1603 events. 64/1603 cut-off events. For 5/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9175 event pairs, 8 based on Foata normal form. 0/1508 useless extension candidates. Maximal degree in co-relation 1820. Up to 50 conditions per place. [2022-11-18 21:11:48,869 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 9 selfloop transitions, 1 changer transitions 0/403 dead transitions. [2022-11-18 21:11:48,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 403 transitions, 932 flow [2022-11-18 21:11:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:48,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:48,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1325 transitions. [2022-11-18 21:11:48,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951867816091954 [2022-11-18 21:11:48,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1325 transitions. [2022-11-18 21:11:48,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1325 transitions. [2022-11-18 21:11:48,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:48,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1325 transitions. [2022-11-18 21:11:48,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.6666666666667) internal successors, (1325), 3 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,882 INFO L175 Difference]: Start difference. First operand has 420 places, 404 transitions, 914 flow. Second operand 3 states and 1325 transitions. [2022-11-18 21:11:48,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 403 transitions, 932 flow [2022-11-18 21:11:48,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 403 transitions, 925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:11:48,890 INFO L231 Difference]: Finished difference. Result has 417 places, 403 transitions, 907 flow [2022-11-18 21:11:48,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=907, PETRI_PLACES=417, PETRI_TRANSITIONS=403} [2022-11-18 21:11:48,891 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-18 21:11:48,891 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 403 transitions, 907 flow [2022-11-18 21:11:48,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:48,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:48,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:48,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 21:11:48,893 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:48,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:48,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2029183497, now seen corresponding path program 1 times [2022-11-18 21:11:48,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:48,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531287120] [2022-11-18 21:11:48,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:48,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:49,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:49,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531287120] [2022-11-18 21:11:49,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531287120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:49,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:49,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:49,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844597626] [2022-11-18 21:11:49,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:49,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:49,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:49,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:49,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-18 21:11:49,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 403 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:49,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-18 21:11:49,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:49,463 INFO L130 PetriNetUnfolder]: 59/1573 cut-off events. [2022-11-18 21:11:49,463 INFO L131 PetriNetUnfolder]: For 7/16 co-relation queries the response was YES. [2022-11-18 21:11:49,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 1573 events. 59/1573 cut-off events. For 7/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8888 event pairs, 6 based on Foata normal form. 0/1481 useless extension candidates. Maximal degree in co-relation 1778. Up to 48 conditions per place. [2022-11-18 21:11:49,495 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 9 selfloop transitions, 1 changer transitions 0/402 dead transitions. [2022-11-18 21:11:49,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 402 transitions, 925 flow [2022-11-18 21:11:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:49,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:49,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1325 transitions. [2022-11-18 21:11:49,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951867816091954 [2022-11-18 21:11:49,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1325 transitions. [2022-11-18 21:11:49,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1325 transitions. [2022-11-18 21:11:49,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:49,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1325 transitions. [2022-11-18 21:11:49,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.6666666666667) internal successors, (1325), 3 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,507 INFO L175 Difference]: Start difference. First operand has 417 places, 403 transitions, 907 flow. Second operand 3 states and 1325 transitions. [2022-11-18 21:11:49,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 402 transitions, 925 flow [2022-11-18 21:11:49,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 402 transitions, 924 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:11:49,515 INFO L231 Difference]: Finished difference. Result has 417 places, 402 transitions, 906 flow [2022-11-18 21:11:49,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=417, PETRI_TRANSITIONS=402} [2022-11-18 21:11:49,517 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-18 21:11:49,517 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 402 transitions, 906 flow [2022-11-18 21:11:49,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:11:49,518 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:49,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 21:11:49,519 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2022-11-18 21:11:49,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash -579776795, now seen corresponding path program 1 times [2022-11-18 21:11:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:49,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588008408] [2022-11-18 21:11:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:49,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:11:49,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:49,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588008408] [2022-11-18 21:11:49,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588008408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:49,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:49,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:11:49,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252234754] [2022-11-18 21:11:49,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:49,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:49,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:49,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:11:49,646 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 464 [2022-11-18 21:11:49,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 402 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:49,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:11:49,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 464 [2022-11-18 21:11:49,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:11:49,988 INFO L130 PetriNetUnfolder]: 59/1288 cut-off events. [2022-11-18 21:11:49,988 INFO L131 PetriNetUnfolder]: For 19/26 co-relation queries the response was YES. [2022-11-18 21:11:50,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1541 conditions, 1288 events. 59/1288 cut-off events. For 19/26 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 6711 event pairs, 14 based on Foata normal form. 2/1215 useless extension candidates. Maximal degree in co-relation 1521. Up to 75 conditions per place. [2022-11-18 21:11:50,012 INFO L137 encePairwiseOnDemand]: 462/464 looper letters, 0 selfloop transitions, 0 changer transitions 401/401 dead transitions. [2022-11-18 21:11:50,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 401 transitions, 922 flow [2022-11-18 21:11:50,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:11:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-18 21:11:50,016 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9511494252873564 [2022-11-18 21:11:50,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-18 21:11:50,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-18 21:11:50,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:11:50,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-18 21:11:50,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:50,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:50,024 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:50,024 INFO L175 Difference]: Start difference. First operand has 417 places, 402 transitions, 906 flow. Second operand 3 states and 1324 transitions. [2022-11-18 21:11:50,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 401 transitions, 922 flow [2022-11-18 21:11:50,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 401 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:11:50,031 INFO L231 Difference]: Finished difference. Result has 417 places, 0 transitions, 0 flow [2022-11-18 21:11:50,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=417, PETRI_TRANSITIONS=0} [2022-11-18 21:11:50,033 INFO L288 CegarLoopForPetriNet]: 431 programPoint places, -14 predicate places. [2022-11-18 21:11:50,033 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 0 transitions, 0 flow [2022-11-18 21:11:50,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:11:50,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (71 of 72 remaining) [2022-11-18 21:11:50,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2022-11-18 21:11:50,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2022-11-18 21:11:50,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2022-11-18 21:11:50,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2022-11-18 21:11:50,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2022-11-18 21:11:50,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2022-11-18 21:11:50,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2022-11-18 21:11:50,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2022-11-18 21:11:50,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2022-11-18 21:11:50,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2022-11-18 21:11:50,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2022-11-18 21:11:50,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2022-11-18 21:11:50,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2022-11-18 21:11:50,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (57 of 72 remaining) [2022-11-18 21:11:50,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2022-11-18 21:11:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2022-11-18 21:11:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2022-11-18 21:11:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2022-11-18 21:11:50,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2022-11-18 21:11:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2022-11-18 21:11:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2022-11-18 21:11:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2022-11-18 21:11:50,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2022-11-18 21:11:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2022-11-18 21:11:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2022-11-18 21:11:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2022-11-18 21:11:50,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2022-11-18 21:11:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2022-11-18 21:11:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2022-11-18 21:11:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2022-11-18 21:11:50,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 72 remaining) [2022-11-18 21:11:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2022-11-18 21:11:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2022-11-18 21:11:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2022-11-18 21:11:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (36 of 72 remaining) [2022-11-18 21:11:50,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (35 of 72 remaining) [2022-11-18 21:11:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (34 of 72 remaining) [2022-11-18 21:11:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (33 of 72 remaining) [2022-11-18 21:11:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2022-11-18 21:11:50,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2022-11-18 21:11:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2022-11-18 21:11:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 72 remaining) [2022-11-18 21:11:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 72 remaining) [2022-11-18 21:11:50,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 72 remaining) [2022-11-18 21:11:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2022-11-18 21:11:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2022-11-18 21:11:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2022-11-18 21:11:50,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2022-11-18 21:11:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2022-11-18 21:11:50,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2022-11-18 21:11:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2022-11-18 21:11:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 72 remaining) [2022-11-18 21:11:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2022-11-18 21:11:50,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2022-11-18 21:11:50,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2022-11-18 21:11:50,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2022-11-18 21:11:50,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2022-11-18 21:11:50,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2022-11-18 21:11:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2022-11-18 21:11:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2022-11-18 21:11:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2022-11-18 21:11:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2022-11-18 21:11:50,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2022-11-18 21:11:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2022-11-18 21:11:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2022-11-18 21:11:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2022-11-18 21:11:50,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2022-11-18 21:11:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2022-11-18 21:11:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 72 remaining) [2022-11-18 21:11:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2022-11-18 21:11:50,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2022-11-18 21:11:50,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 21:11:50,064 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-18 21:11:50,071 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:11:50,071 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:11:50,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:11:50 BasicIcfg [2022-11-18 21:11:50,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:11:50,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:11:50,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:11:50,079 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:11:50,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:11:30" (3/4) ... [2022-11-18 21:11:50,083 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:11:50,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 21:11:50,089 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 21:11:50,090 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 21:11:50,097 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-18 21:11:50,098 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 21:11:50,098 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 21:11:50,099 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:11:50,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:11:50,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:11:50,165 INFO L158 Benchmark]: Toolchain (without parser) took 21638.27ms. Allocated memory was 134.2MB in the beginning and 589.3MB in the end (delta: 455.1MB). Free memory was 102.3MB in the beginning and 437.9MB in the end (delta: -335.6MB). Peak memory consumption was 119.9MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,165 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:11:50,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.49ms. Allocated memory is still 134.2MB. Free memory was 102.1MB in the beginning and 109.1MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.99ms. Allocated memory is still 134.2MB. Free memory was 109.1MB in the beginning and 106.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,166 INFO L158 Benchmark]: Boogie Preprocessor took 92.17ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,166 INFO L158 Benchmark]: RCFGBuilder took 1232.05ms. Allocated memory is still 134.2MB. Free memory was 104.3MB in the beginning and 74.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,167 INFO L158 Benchmark]: TraceAbstraction took 19728.23ms. Allocated memory was 134.2MB in the beginning and 589.3MB in the end (delta: 455.1MB). Free memory was 74.4MB in the beginning and 442.1MB in the end (delta: -367.7MB). Peak memory consumption was 355.7MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,167 INFO L158 Benchmark]: Witness Printer took 84.84ms. Allocated memory is still 589.3MB. Free memory was 442.1MB in the beginning and 437.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:11:50,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.49ms. Allocated memory is still 134.2MB. Free memory was 102.1MB in the beginning and 109.1MB in the end (delta: -7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.99ms. Allocated memory is still 134.2MB. Free memory was 109.1MB in the beginning and 106.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.17ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1232.05ms. Allocated memory is still 134.2MB. Free memory was 104.3MB in the beginning and 74.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19728.23ms. Allocated memory was 134.2MB in the beginning and 589.3MB in the end (delta: 455.1MB). Free memory was 74.4MB in the beginning and 442.1MB in the end (delta: -367.7MB). Peak memory consumption was 355.7MB. Max. memory is 16.1GB. * Witness Printer took 84.84ms. Allocated memory is still 589.3MB. Free memory was 442.1MB in the beginning and 437.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: 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: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: 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: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: 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: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: 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, 717 locations, 72 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: 19.4s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 624 IncrementalHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 224 mSDtfsCounter, 624 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=915occurred in iteration=21, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 3784 NumberOfCodeBlocks, 3784 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3757 ConstructedInterpolants, 0 QuantifiedInterpolants, 4048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:11:50,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578ef814-e563-4ff8-a2a9-283b7d610da9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE