./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:08:09,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:08:09,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:08:09,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:08:09,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:08:09,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:08:09,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:08:09,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:08:09,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:08:09,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:08:09,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:08:09,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:08:09,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:08:09,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:08:09,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:08:09,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:08:09,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:08:09,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:08:09,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:08:09,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:08:09,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:08:09,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:08:09,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:08:09,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:08:09,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:08:09,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:08:09,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:08:09,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:08:09,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:08:09,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:08:09,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:08:09,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:08:09,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:08:09,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:08:09,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:08:09,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:08:09,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:08:09,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:08:09,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:08:09,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:08:09,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:08:09,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:08:09,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:08:09,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:08:09,193 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:08:09,193 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:08:09,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:08:09,194 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:08:09,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:08:09,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:08:09,195 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:08:09,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:08:09,197 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:08:09,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:08:09,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:08:09,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:08:09,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:08:09,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:08:09,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:08:09,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:08:09,199 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:08:09,199 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:08:09,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:08:09,199 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:08:09,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:08:09,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:08:09,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:08:09,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:08:09,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:08:09,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:08:09,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:08:09,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:08:09,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:08:09,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:08:09,204 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:08:09,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:08:09,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:08:09,204 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_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-11-16 11:08:09,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:08:09,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:08:09,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:08:09,541 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:08:09,542 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:08:09,543 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-16 11:08:09,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/data/885d326ba/5350dfed15ae40bcbb95f358aa7188dc/FLAGcce2f4e25 [2022-11-16 11:08:10,167 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:08:10,168 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-16 11:08:10,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/data/885d326ba/5350dfed15ae40bcbb95f358aa7188dc/FLAGcce2f4e25 [2022-11-16 11:08:10,500 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/data/885d326ba/5350dfed15ae40bcbb95f358aa7188dc [2022-11-16 11:08:10,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:08:10,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:08:10,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:10,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:08:10,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:08:10,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60595b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10, skipping insertion in model container [2022-11-16 11:08:10,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:08:10,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:08:10,810 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-16 11:08:10,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:10,828 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:08:10,872 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-16 11:08:10,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:08:10,894 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:08:10,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10 WrapperNode [2022-11-16 11:08:10,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:08:10,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:10,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:08:10,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:08:10,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,974 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-16 11:08:10,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:08:10,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:08:10,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:08:10,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:08:10,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:10,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:08:11,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:08:11,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:08:11,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:08:11,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (1/1) ... [2022-11-16 11:08:11,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:08:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:11,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:08:11,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:08:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:08:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:08:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:08:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:08:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:08:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:08:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:08:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:08:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 11:08:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 11:08:11,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:08:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:08:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:08:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:08:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:08:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:08:11,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:08:11,176 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:08:11,392 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:08:11,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:08:12,379 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:08:12,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:08:12,673 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:08:12,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:12 BoogieIcfgContainer [2022-11-16 11:08:12,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:08:12,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:08:12,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:08:12,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:08:12,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:08:10" (1/3) ... [2022-11-16 11:08:12,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bc3655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:12, skipping insertion in model container [2022-11-16 11:08:12,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:08:10" (2/3) ... [2022-11-16 11:08:12,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bc3655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:08:12, skipping insertion in model container [2022-11-16 11:08:12,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:08:12" (3/3) ... [2022-11-16 11:08:12,690 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-11-16 11:08:12,700 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:08:12,712 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:08:12,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-16 11:08:12,713 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:08:12,888 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:08:12,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-16 11:08:13,248 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-16 11:08:13,248 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:08:13,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 624 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-16 11:08:13,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-16 11:08:13,285 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-16 11:08:13,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:08:13,326 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;@3fa4b7c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:08:13,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-16 11:08:13,341 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-16 11:08:13,342 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:08:13,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:13,343 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] [2022-11-16 11:08:13,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:13,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1890574445, now seen corresponding path program 1 times [2022-11-16 11:08:13,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:13,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83030806] [2022-11-16 11:08:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:13,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:13,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:13,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83030806] [2022-11-16 11:08:13,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83030806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:13,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:13,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:13,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875603873] [2022-11-16 11:08:13,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:13,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:13,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:13,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:13,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 528 [2022-11-16 11:08:13,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:13,715 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:13,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 528 [2022-11-16 11:08:13,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:14,506 INFO L130 PetriNetUnfolder]: 390/1591 cut-off events. [2022-11-16 11:08:14,506 INFO L131 PetriNetUnfolder]: For 140/293 co-relation queries the response was YES. [2022-11-16 11:08:14,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1591 events. 390/1591 cut-off events. For 140/293 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9175 event pairs, 255 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 1742. Up to 545 conditions per place. [2022-11-16 11:08:14,534 INFO L137 encePairwiseOnDemand]: 496/528 looper letters, 33 selfloop transitions, 2 changer transitions 9/448 dead transitions. [2022-11-16 11:08:14,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 448 transitions, 984 flow [2022-11-16 11:08:14,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:14,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-16 11:08:14,561 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103535353535354 [2022-11-16 11:08:14,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-16 11:08:14,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-16 11:08:14,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:14,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-16 11:08:14,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,592 INFO L175 Difference]: Start difference. First operand has 464 places, 478 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-16 11:08:14,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 448 transitions, 984 flow [2022-11-16 11:08:14,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 972 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 11:08:14,615 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 888 flow [2022-11-16 11:08:14,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2022-11-16 11:08:14,622 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2022-11-16 11:08:14,623 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 888 flow [2022-11-16 11:08:14,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:14,625 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] [2022-11-16 11:08:14,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:08:14,627 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:14,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:14,628 INFO L85 PathProgramCache]: Analyzing trace with hash -569490556, now seen corresponding path program 1 times [2022-11-16 11:08:14,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:14,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432622068] [2022-11-16 11:08:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:14,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:14,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:14,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432622068] [2022-11-16 11:08:14,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432622068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:14,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:14,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822441974] [2022-11-16 11:08:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:14,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:14,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 528 [2022-11-16 11:08:14,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:14,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:14,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 528 [2022-11-16 11:08:14,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:15,234 INFO L130 PetriNetUnfolder]: 223/1238 cut-off events. [2022-11-16 11:08:15,235 INFO L131 PetriNetUnfolder]: For 27/107 co-relation queries the response was YES. [2022-11-16 11:08:15,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1238 events. 223/1238 cut-off events. For 27/107 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6550 event pairs, 128 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1523. Up to 299 conditions per place. [2022-11-16 11:08:15,249 INFO L137 encePairwiseOnDemand]: 520/528 looper letters, 24 selfloop transitions, 1 changer transitions 0/432 dead transitions. [2022-11-16 11:08:15,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 432 transitions, 924 flow [2022-11-16 11:08:15,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:15,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:15,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2022-11-16 11:08:15,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2022-11-16 11:08:15,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2022-11-16 11:08:15,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2022-11-16 11:08:15,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:15,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2022-11-16 11:08:15,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,268 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 888 flow. Second operand 3 states and 1418 transitions. [2022-11-16 11:08:15,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 432 transitions, 924 flow [2022-11-16 11:08:15,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 432 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:15,279 INFO L231 Difference]: Finished difference. Result has 429 places, 432 transitions, 872 flow [2022-11-16 11:08:15,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=429, PETRI_TRANSITIONS=432} [2022-11-16 11:08:15,281 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 11:08:15,282 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 432 transitions, 872 flow [2022-11-16 11:08:15,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,283 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:15,284 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:15,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:08:15,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:15,285 INFO L85 PathProgramCache]: Analyzing trace with hash -74328085, now seen corresponding path program 1 times [2022-11-16 11:08:15,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:15,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119132211] [2022-11-16 11:08:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:15,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:15,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:15,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119132211] [2022-11-16 11:08:15,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119132211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:15,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:15,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:15,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701750907] [2022-11-16 11:08:15,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:15,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:15,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:15,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:15,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:15,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-16 11:08:15,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 432 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:15,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-16 11:08:15,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:15,867 INFO L130 PetriNetUnfolder]: 157/1366 cut-off events. [2022-11-16 11:08:15,868 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-16 11:08:15,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1366 events. 157/1366 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7571 event pairs, 78 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1569. Up to 212 conditions per place. [2022-11-16 11:08:15,880 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-16 11:08:15,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 431 transitions, 922 flow [2022-11-16 11:08:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-16 11:08:15,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-16 11:08:15,886 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-16 11:08:15,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-16 11:08:15,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:15,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-16 11:08:15,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,896 INFO L175 Difference]: Start difference. First operand has 429 places, 432 transitions, 872 flow. Second operand 3 states and 1431 transitions. [2022-11-16 11:08:15,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 431 transitions, 922 flow [2022-11-16 11:08:15,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 431 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:15,904 INFO L231 Difference]: Finished difference. Result has 429 places, 431 transitions, 873 flow [2022-11-16 11:08:15,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=873, PETRI_PLACES=429, PETRI_TRANSITIONS=431} [2022-11-16 11:08:15,908 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 11:08:15,909 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 431 transitions, 873 flow [2022-11-16 11:08:15,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:15,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:15,910 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:15,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:08:15,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:15,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:15,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1481679769, now seen corresponding path program 1 times [2022-11-16 11:08:15,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:15,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337326762] [2022-11-16 11:08:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:15,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:16,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:16,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:16,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337326762] [2022-11-16 11:08:16,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337326762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:16,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:16,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:16,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194309747] [2022-11-16 11:08:16,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:16,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:16,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:16,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:16,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:16,547 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 528 [2022-11-16 11:08:16,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 431 transitions, 873 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:16,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:16,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 528 [2022-11-16 11:08:16,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:19,366 INFO L130 PetriNetUnfolder]: 2943/6655 cut-off events. [2022-11-16 11:08:19,366 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:08:19,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10875 conditions, 6655 events. 2943/6655 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 53058 event pairs, 2244 based on Foata normal form. 0/5729 useless extension candidates. Maximal degree in co-relation 10840. Up to 4124 conditions per place. [2022-11-16 11:08:19,450 INFO L137 encePairwiseOnDemand]: 510/528 looper letters, 108 selfloop transitions, 15 changer transitions 0/428 dead transitions. [2022-11-16 11:08:19,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 428 transitions, 1113 flow [2022-11-16 11:08:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:19,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2022-11-16 11:08:19,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2022-11-16 11:08:19,458 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2022-11-16 11:08:19,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2022-11-16 11:08:19,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:19,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2022-11-16 11:08:19,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,478 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,479 INFO L175 Difference]: Start difference. First operand has 429 places, 431 transitions, 873 flow. Second operand 6 states and 2340 transitions. [2022-11-16 11:08:19,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 428 transitions, 1113 flow [2022-11-16 11:08:19,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 428 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:19,491 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 893 flow [2022-11-16 11:08:19,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-16 11:08:19,493 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-16 11:08:19,493 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 893 flow [2022-11-16 11:08:19,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:19,495 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:19,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:08:19,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:19,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:19,496 INFO L85 PathProgramCache]: Analyzing trace with hash 6581933, now seen corresponding path program 1 times [2022-11-16 11:08:19,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:19,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723733611] [2022-11-16 11:08:19,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:19,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:19,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723733611] [2022-11-16 11:08:19,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723733611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:19,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:19,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626896369] [2022-11-16 11:08:19,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:19,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:19,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:19,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:19,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:19,576 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-16 11:08:19,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:19,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:19,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-16 11:08:19,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:20,120 INFO L130 PetriNetUnfolder]: 154/1308 cut-off events. [2022-11-16 11:08:20,120 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-16 11:08:20,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1308 events. 154/1308 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6918 event pairs, 78 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1520. Up to 206 conditions per place. [2022-11-16 11:08:20,131 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-16 11:08:20,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 427 transitions, 943 flow [2022-11-16 11:08:20,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-16 11:08:20,142 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-16 11:08:20,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-16 11:08:20,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-16 11:08:20,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:20,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-16 11:08:20,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,153 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 893 flow. Second operand 3 states and 1431 transitions. [2022-11-16 11:08:20,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 427 transitions, 943 flow [2022-11-16 11:08:20,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 427 transitions, 913 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:08:20,161 INFO L231 Difference]: Finished difference. Result has 425 places, 427 transitions, 865 flow [2022-11-16 11:08:20,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=425, PETRI_TRANSITIONS=427} [2022-11-16 11:08:20,163 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -39 predicate places. [2022-11-16 11:08:20,163 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 427 transitions, 865 flow [2022-11-16 11:08:20,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:20,165 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:08:20,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:08:20,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:20,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash -256036816, now seen corresponding path program 1 times [2022-11-16 11:08:20,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:20,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105978122] [2022-11-16 11:08:20,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:20,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:20,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:20,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105978122] [2022-11-16 11:08:20,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105978122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:20,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:20,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:20,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329474958] [2022-11-16 11:08:20,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:20,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:20,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:20,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:20,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 11:08:20,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 427 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:20,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 11:08:20,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:20,435 INFO L130 PetriNetUnfolder]: 37/530 cut-off events. [2022-11-16 11:08:20,435 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-16 11:08:20,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 530 events. 37/530 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1118 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 553. Up to 48 conditions per place. [2022-11-16 11:08:20,440 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-16 11:08:20,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 891 flow [2022-11-16 11:08:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-16 11:08:20,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-16 11:08:20,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:20,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,455 INFO L175 Difference]: Start difference. First operand has 425 places, 427 transitions, 865 flow. Second operand 3 states and 1455 transitions. [2022-11-16 11:08:20,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 891 flow [2022-11-16 11:08:20,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:20,465 INFO L231 Difference]: Finished difference. Result has 424 places, 426 transitions, 863 flow [2022-11-16 11:08:20,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=424, PETRI_TRANSITIONS=426} [2022-11-16 11:08:20,469 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-16 11:08:20,470 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 426 transitions, 863 flow [2022-11-16 11:08:20,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:20,471 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] [2022-11-16 11:08:20,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:08:20,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:20,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:20,472 INFO L85 PathProgramCache]: Analyzing trace with hash -934465091, now seen corresponding path program 1 times [2022-11-16 11:08:20,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:20,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006825113] [2022-11-16 11:08:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:20,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:20,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:20,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006825113] [2022-11-16 11:08:20,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006825113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:20,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:20,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576006922] [2022-11-16 11:08:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:20,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:20,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:20,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:20,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:20,545 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 11:08:20,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 426 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:20,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 11:08:20,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:20,732 INFO L130 PetriNetUnfolder]: 37/529 cut-off events. [2022-11-16 11:08:20,732 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-16 11:08:20,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 529 events. 37/529 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1117 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 552. Up to 48 conditions per place. [2022-11-16 11:08:20,737 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-16 11:08:20,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 889 flow [2022-11-16 11:08:20,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:20,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-16 11:08:20,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-16 11:08:20,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:20,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-16 11:08:20,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,751 INFO L175 Difference]: Start difference. First operand has 424 places, 426 transitions, 863 flow. Second operand 3 states and 1455 transitions. [2022-11-16 11:08:20,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 889 flow [2022-11-16 11:08:20,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:20,760 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 861 flow [2022-11-16 11:08:20,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2022-11-16 11:08:20,762 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -41 predicate places. [2022-11-16 11:08:20,763 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 861 flow [2022-11-16 11:08:20,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:20,764 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] [2022-11-16 11:08:20,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:08:20,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1329492820, now seen corresponding path program 1 times [2022-11-16 11:08:20,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654581841] [2022-11-16 11:08:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:20,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:20,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:20,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654581841] [2022-11-16 11:08:20,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654581841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:20,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:20,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039929895] [2022-11-16 11:08:20,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:20,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:20,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:20,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:20,869 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 11:08:20,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:20,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:20,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 11:08:20,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:21,176 INFO L130 PetriNetUnfolder]: 129/1285 cut-off events. [2022-11-16 11:08:21,177 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-16 11:08:21,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1285 events. 129/1285 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6852 event pairs, 56 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1434. Up to 160 conditions per place. [2022-11-16 11:08:21,190 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 18 selfloop transitions, 1 changer transitions 0/421 dead transitions. [2022-11-16 11:08:21,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 421 transitions, 891 flow [2022-11-16 11:08:21,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:21,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 11:08:21,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 11:08:21,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 11:08:21,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 11:08:21,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:21,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 11:08:21,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:21,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:21,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:21,206 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 861 flow. Second operand 3 states and 1436 transitions. [2022-11-16 11:08:21,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 421 transitions, 891 flow [2022-11-16 11:08:21,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:21,215 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 851 flow [2022-11-16 11:08:21,216 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-16 11:08:21,216 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-16 11:08:21,217 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 851 flow [2022-11-16 11:08:21,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:21,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:21,219 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] [2022-11-16 11:08:21,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:08:21,219 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:21,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1655877512, now seen corresponding path program 1 times [2022-11-16 11:08:21,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:21,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756957428] [2022-11-16 11:08:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:21,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:21,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:21,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756957428] [2022-11-16 11:08:21,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756957428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:21,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:21,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:21,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858883065] [2022-11-16 11:08:21,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:21,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:21,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:21,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:21,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:21,925 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 11:08:21,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:21,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:21,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 11:08:21,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:25,342 INFO L130 PetriNetUnfolder]: 3172/11360 cut-off events. [2022-11-16 11:08:25,342 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-16 11:08:25,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15924 conditions, 11360 events. 3172/11360 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 124356 event pairs, 924 based on Foata normal form. 0/10143 useless extension candidates. Maximal degree in co-relation 15888. Up to 2825 conditions per place. [2022-11-16 11:08:25,449 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 140 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2022-11-16 11:08:25,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 470 transitions, 1243 flow [2022-11-16 11:08:25,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2523 transitions. [2022-11-16 11:08:25,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964015151515151 [2022-11-16 11:08:25,457 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2523 transitions. [2022-11-16 11:08:25,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2523 transitions. [2022-11-16 11:08:25,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:25,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2523 transitions. [2022-11-16 11:08:25,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.5) internal successors, (2523), 6 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,475 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,476 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 851 flow. Second operand 6 states and 2523 transitions. [2022-11-16 11:08:25,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 470 transitions, 1243 flow [2022-11-16 11:08:25,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 470 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:25,489 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 862 flow [2022-11-16 11:08:25,490 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-16 11:08:25,491 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -42 predicate places. [2022-11-16 11:08:25,491 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 862 flow [2022-11-16 11:08:25,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,492 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:25,492 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] [2022-11-16 11:08:25,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:08:25,493 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:25,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:25,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1628664436, now seen corresponding path program 1 times [2022-11-16 11:08:25,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:25,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976095068] [2022-11-16 11:08:25,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:25,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:25,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:25,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976095068] [2022-11-16 11:08:25,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976095068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:25,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:25,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:25,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070686823] [2022-11-16 11:08:25,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:25,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:25,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:25,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:25,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:25,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 11:08:25,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:25,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:25,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 11:08:25,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:26,030 INFO L130 PetriNetUnfolder]: 162/1308 cut-off events. [2022-11-16 11:08:26,031 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-11-16 11:08:26,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1308 events. 162/1308 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7001 event pairs, 80 based on Foata normal form. 0/1126 useless extension candidates. Maximal degree in co-relation 1621. Up to 224 conditions per place. [2022-11-16 11:08:26,044 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 22 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-16 11:08:26,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 908 flow [2022-11-16 11:08:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-11-16 11:08:26,049 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9071969696969697 [2022-11-16 11:08:26,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-11-16 11:08:26,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-11-16 11:08:26,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:26,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-11-16 11:08:26,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,059 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 862 flow. Second operand 3 states and 1437 transitions. [2022-11-16 11:08:26,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 908 flow [2022-11-16 11:08:26,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:08:26,068 INFO L231 Difference]: Finished difference. Result has 419 places, 419 transitions, 856 flow [2022-11-16 11:08:26,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, 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=856, PETRI_PLACES=419, PETRI_TRANSITIONS=419} [2022-11-16 11:08:26,070 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-16 11:08:26,070 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 419 transitions, 856 flow [2022-11-16 11:08:26,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:26,071 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] [2022-11-16 11:08:26,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:08:26,072 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:26,072 INFO L85 PathProgramCache]: Analyzing trace with hash 364864448, now seen corresponding path program 1 times [2022-11-16 11:08:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:26,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275578259] [2022-11-16 11:08:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:26,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:26,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:26,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275578259] [2022-11-16 11:08:26,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275578259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:26,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:26,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:26,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555058149] [2022-11-16 11:08:26,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:26,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:26,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:26,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:26,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:26,148 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 11:08:26,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 419 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:26,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 11:08:26,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:26,455 INFO L130 PetriNetUnfolder]: 131/1285 cut-off events. [2022-11-16 11:08:26,455 INFO L131 PetriNetUnfolder]: For 68/73 co-relation queries the response was YES. [2022-11-16 11:08:26,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1285 events. 131/1285 cut-off events. For 68/73 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6904 event pairs, 58 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1486. Up to 164 conditions per place. [2022-11-16 11:08:26,470 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 19 selfloop transitions, 1 changer transitions 0/415 dead transitions. [2022-11-16 11:08:26,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 415 transitions, 888 flow [2022-11-16 11:08:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 11:08:26,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 11:08:26,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 11:08:26,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 11:08:26,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:26,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 11:08:26,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,484 INFO L175 Difference]: Start difference. First operand has 419 places, 419 transitions, 856 flow. Second operand 3 states and 1436 transitions. [2022-11-16 11:08:26,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 415 transitions, 888 flow [2022-11-16 11:08:26,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 415 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:26,492 INFO L231 Difference]: Finished difference. Result has 415 places, 415 transitions, 846 flow [2022-11-16 11:08:26,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=415, PETRI_TRANSITIONS=415} [2022-11-16 11:08:26,495 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -49 predicate places. [2022-11-16 11:08:26,495 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 415 transitions, 846 flow [2022-11-16 11:08:26,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:26,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:26,496 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] [2022-11-16 11:08:26,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:08:26,497 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:26,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1228218192, now seen corresponding path program 1 times [2022-11-16 11:08:26,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:26,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917888838] [2022-11-16 11:08:26,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:26,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:27,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:27,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917888838] [2022-11-16 11:08:27,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917888838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:27,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:27,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:27,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051863269] [2022-11-16 11:08:27,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:27,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:27,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:27,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:27,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:27,066 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 11:08:27,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 415 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:27,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:27,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 11:08:27,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:30,464 INFO L130 PetriNetUnfolder]: 3172/11292 cut-off events. [2022-11-16 11:08:30,464 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-11-16 11:08:30,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 11292 events. 3172/11292 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 123407 event pairs, 924 based on Foata normal form. 0/10123 useless extension candidates. Maximal degree in co-relation 17050. Up to 2830 conditions per place. [2022-11-16 11:08:30,564 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 138 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2022-11-16 11:08:30,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 463 transitions, 1232 flow [2022-11-16 11:08:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:30,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2022-11-16 11:08:30,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795770202020202 [2022-11-16 11:08:30,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2521 transitions. [2022-11-16 11:08:30,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2521 transitions. [2022-11-16 11:08:30,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:30,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2521 transitions. [2022-11-16 11:08:30,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.1666666666667) internal successors, (2521), 6 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:30,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:30,591 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:30,591 INFO L175 Difference]: Start difference. First operand has 415 places, 415 transitions, 846 flow. Second operand 6 states and 2521 transitions. [2022-11-16 11:08:30,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 463 transitions, 1232 flow [2022-11-16 11:08:30,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 463 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:30,605 INFO L231 Difference]: Finished difference. Result has 417 places, 413 transitions, 851 flow [2022-11-16 11:08:30,606 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=413} [2022-11-16 11:08:30,608 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -47 predicate places. [2022-11-16 11:08:30,608 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 413 transitions, 851 flow [2022-11-16 11:08:30,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:30,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:30,610 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] [2022-11-16 11:08:30,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:08:30,610 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:30,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1574754766, now seen corresponding path program 1 times [2022-11-16 11:08:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:30,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803447800] [2022-11-16 11:08:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:30,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:30,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803447800] [2022-11-16 11:08:30,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803447800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:30,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:30,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:30,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906876955] [2022-11-16 11:08:30,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:30,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:30,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:30,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:30,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:30,734 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-16 11:08:30,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 413 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:30,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:30,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-16 11:08:30,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:31,200 INFO L130 PetriNetUnfolder]: 161/1312 cut-off events. [2022-11-16 11:08:31,200 INFO L131 PetriNetUnfolder]: For 146/151 co-relation queries the response was YES. [2022-11-16 11:08:31,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1312 events. 161/1312 cut-off events. For 146/151 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7111 event pairs, 80 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 1619. Up to 216 conditions per place. [2022-11-16 11:08:31,216 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-16 11:08:31,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 412 transitions, 895 flow [2022-11-16 11:08:31,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:31,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-16 11:08:31,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-16 11:08:31,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-16 11:08:31,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-16 11:08:31,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:31,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-16 11:08:31,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,233 INFO L175 Difference]: Start difference. First operand has 417 places, 413 transitions, 851 flow. Second operand 3 states and 1436 transitions. [2022-11-16 11:08:31,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 412 transitions, 895 flow [2022-11-16 11:08:31,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 412 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:08:31,244 INFO L231 Difference]: Finished difference. Result has 413 places, 412 transitions, 843 flow [2022-11-16 11:08:31,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=413, PETRI_TRANSITIONS=412} [2022-11-16 11:08:31,247 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -51 predicate places. [2022-11-16 11:08:31,247 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 412 transitions, 843 flow [2022-11-16 11:08:31,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:31,249 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] [2022-11-16 11:08:31,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:08:31,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:31,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash 482775438, now seen corresponding path program 1 times [2022-11-16 11:08:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:31,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39248600] [2022-11-16 11:08:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:31,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:31,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:31,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:31,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39248600] [2022-11-16 11:08:31,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39248600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:31,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:31,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567196755] [2022-11-16 11:08:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:31,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:31,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:31,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:31,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:31,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 528 [2022-11-16 11:08:31,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 412 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:31,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 528 [2022-11-16 11:08:31,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:31,615 INFO L130 PetriNetUnfolder]: 39/554 cut-off events. [2022-11-16 11:08:31,615 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-16 11:08:31,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 554 events. 39/554 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1283 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 606. Up to 60 conditions per place. [2022-11-16 11:08:31,621 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 16 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-16 11:08:31,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 411 transitions, 877 flow [2022-11-16 11:08:31,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-11-16 11:08:31,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2022-11-16 11:08:31,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-11-16 11:08:31,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-11-16 11:08:31,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:31,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-11-16 11:08:31,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,639 INFO L175 Difference]: Start difference. First operand has 413 places, 412 transitions, 843 flow. Second operand 3 states and 1449 transitions. [2022-11-16 11:08:31,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 411 transitions, 877 flow [2022-11-16 11:08:31,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 411 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:31,650 INFO L231 Difference]: Finished difference. Result has 412 places, 411 transitions, 841 flow [2022-11-16 11:08:31,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2022-11-16 11:08:31,652 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -52 predicate places. [2022-11-16 11:08:31,652 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 411 transitions, 841 flow [2022-11-16 11:08:31,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:31,654 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] [2022-11-16 11:08:31,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:08:31,654 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash 120215974, now seen corresponding path program 1 times [2022-11-16 11:08:31,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:31,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324563892] [2022-11-16 11:08:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:31,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:31,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:31,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324563892] [2022-11-16 11:08:31,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324563892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:31,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:31,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:08:31,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867519631] [2022-11-16 11:08:31,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:31,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:08:31,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:08:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:08:31,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-16 11:08:31,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 411 transitions, 841 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:31,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:31,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-16 11:08:31,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:32,216 INFO L130 PetriNetUnfolder]: 179/1384 cut-off events. [2022-11-16 11:08:32,217 INFO L131 PetriNetUnfolder]: For 98/111 co-relation queries the response was YES. [2022-11-16 11:08:32,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1384 events. 179/1384 cut-off events. For 98/111 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7593 event pairs, 62 based on Foata normal form. 0/1208 useless extension candidates. Maximal degree in co-relation 1672. Up to 131 conditions per place. [2022-11-16 11:08:32,228 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 27 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-16 11:08:32,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 420 transitions, 928 flow [2022-11-16 11:08:32,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:08:32,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:08:32,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1452 transitions. [2022-11-16 11:08:32,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-16 11:08:32,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1452 transitions. [2022-11-16 11:08:32,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1452 transitions. [2022-11-16 11:08:32,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:32,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1452 transitions. [2022-11-16 11:08:32,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,241 INFO L175 Difference]: Start difference. First operand has 412 places, 411 transitions, 841 flow. Second operand 3 states and 1452 transitions. [2022-11-16 11:08:32,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 420 transitions, 928 flow [2022-11-16 11:08:32,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:32,249 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 850 flow [2022-11-16 11:08:32,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-16 11:08:32,251 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -53 predicate places. [2022-11-16 11:08:32,251 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 850 flow [2022-11-16 11:08:32,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:32,252 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] [2022-11-16 11:08:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:08:32,252 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:32,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1742411316, now seen corresponding path program 1 times [2022-11-16 11:08:32,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:32,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652771557] [2022-11-16 11:08:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:32,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:32,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:32,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652771557] [2022-11-16 11:08:32,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652771557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:32,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:32,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:08:32,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041221678] [2022-11-16 11:08:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:32,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:08:32,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:32,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:08:32,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:08:32,530 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 528 [2022-11-16 11:08:32,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 850 flow. Second operand has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:32,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:32,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 528 [2022-11-16 11:08:32,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:36,310 INFO L130 PetriNetUnfolder]: 5052/12147 cut-off events. [2022-11-16 11:08:36,311 INFO L131 PetriNetUnfolder]: For 858/952 co-relation queries the response was YES. [2022-11-16 11:08:36,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20664 conditions, 12147 events. 5052/12147 cut-off events. For 858/952 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 101312 event pairs, 3443 based on Foata normal form. 1/9696 useless extension candidates. Maximal degree in co-relation 20626. Up to 6311 conditions per place. [2022-11-16 11:08:36,441 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 211 selfloop transitions, 28 changer transitions 0/549 dead transitions. [2022-11-16 11:08:36,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 549 transitions, 1636 flow [2022-11-16 11:08:36,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:08:36,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:08:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4548 transitions. [2022-11-16 11:08:36,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2022-11-16 11:08:36,452 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4548 transitions. [2022-11-16 11:08:36,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4548 transitions. [2022-11-16 11:08:36,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:36,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4548 transitions. [2022-11-16 11:08:36,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 413.45454545454544) internal successors, (4548), 11 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,478 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,479 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 850 flow. Second operand 11 states and 4548 transitions. [2022-11-16 11:08:36,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 549 transitions, 1636 flow [2022-11-16 11:08:36,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 549 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:08:36,491 INFO L231 Difference]: Finished difference. Result has 424 places, 428 transitions, 980 flow [2022-11-16 11:08:36,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=980, PETRI_PLACES=424, PETRI_TRANSITIONS=428} [2022-11-16 11:08:36,493 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-16 11:08:36,495 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 428 transitions, 980 flow [2022-11-16 11:08:36,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:36,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:36,497 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] [2022-11-16 11:08:36,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:08:36,497 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:36,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:36,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1579814397, now seen corresponding path program 1 times [2022-11-16 11:08:36,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:36,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953651469] [2022-11-16 11:08:36,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:36,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:37,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:37,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953651469] [2022-11-16 11:08:37,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953651469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:37,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:37,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:37,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296521722] [2022-11-16 11:08:37,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:37,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:37,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:37,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:37,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:37,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 11:08:37,458 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 428 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:37,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:37,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 11:08:37,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:42,666 INFO L130 PetriNetUnfolder]: 6676/14217 cut-off events. [2022-11-16 11:08:42,666 INFO L131 PetriNetUnfolder]: For 2786/2846 co-relation queries the response was YES. [2022-11-16 11:08:42,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26970 conditions, 14217 events. 6676/14217 cut-off events. For 2786/2846 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 114792 event pairs, 2122 based on Foata normal form. 48/13059 useless extension candidates. Maximal degree in co-relation 26925. Up to 5895 conditions per place. [2022-11-16 11:08:42,828 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 209 selfloop transitions, 13 changer transitions 0/559 dead transitions. [2022-11-16 11:08:42,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 559 transitions, 1705 flow [2022-11-16 11:08:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-16 11:08:42,836 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8188131313131313 [2022-11-16 11:08:42,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-16 11:08:42,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-16 11:08:42,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:42,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-16 11:08:42,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:42,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:42,859 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:42,859 INFO L175 Difference]: Start difference. First operand has 424 places, 428 transitions, 980 flow. Second operand 6 states and 2594 transitions. [2022-11-16 11:08:42,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 559 transitions, 1705 flow [2022-11-16 11:08:42,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 559 transitions, 1700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:08:42,880 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 1081 flow [2022-11-16 11:08:42,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-16 11:08:42,882 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -32 predicate places. [2022-11-16 11:08:42,882 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 1081 flow [2022-11-16 11:08:42,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:42,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:42,884 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] [2022-11-16 11:08:42,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:08:42,884 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:42,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:42,885 INFO L85 PathProgramCache]: Analyzing trace with hash 425293076, now seen corresponding path program 1 times [2022-11-16 11:08:42,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:42,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666617734] [2022-11-16 11:08:42,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:42,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:43,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:43,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:43,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666617734] [2022-11-16 11:08:43,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666617734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:43,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:43,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:08:43,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588720103] [2022-11-16 11:08:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:43,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:08:43,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:43,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:08:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:08:43,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 528 [2022-11-16 11:08:43,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:43,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:43,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 528 [2022-11-16 11:08:43,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:46,022 INFO L130 PetriNetUnfolder]: 3124/7596 cut-off events. [2022-11-16 11:08:46,023 INFO L131 PetriNetUnfolder]: For 4452/5151 co-relation queries the response was YES. [2022-11-16 11:08:46,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14659 conditions, 7596 events. 3124/7596 cut-off events. For 4452/5151 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 57147 event pairs, 1719 based on Foata normal form. 39/5923 useless extension candidates. Maximal degree in co-relation 14612. Up to 3889 conditions per place. [2022-11-16 11:08:46,120 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 179 selfloop transitions, 28 changer transitions 0/551 dead transitions. [2022-11-16 11:08:46,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 551 transitions, 1749 flow [2022-11-16 11:08:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:08:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:08:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4820 transitions. [2022-11-16 11:08:46,132 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8298898071625345 [2022-11-16 11:08:46,133 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4820 transitions. [2022-11-16 11:08:46,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4820 transitions. [2022-11-16 11:08:46,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:46,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4820 transitions. [2022-11-16 11:08:46,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 438.1818181818182) internal successors, (4820), 11 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:46,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:46,157 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:46,157 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 1081 flow. Second operand 11 states and 4820 transitions. [2022-11-16 11:08:46,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 551 transitions, 1749 flow [2022-11-16 11:08:46,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 551 transitions, 1749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:08:46,172 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 1149 flow [2022-11-16 11:08:46,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1149, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-16 11:08:46,174 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -20 predicate places. [2022-11-16 11:08:46,174 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 1149 flow [2022-11-16 11:08:46,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:46,175 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:46,176 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] [2022-11-16 11:08:46,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:08:46,176 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:46,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1314647860, now seen corresponding path program 1 times [2022-11-16 11:08:46,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:46,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898275489] [2022-11-16 11:08:46,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:46,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:47,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898275489] [2022-11-16 11:08:47,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898275489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:47,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:47,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637613479] [2022-11-16 11:08:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:47,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:47,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:47,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:47,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 11:08:47,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:47,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:47,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 11:08:47,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:52,251 INFO L130 PetriNetUnfolder]: 5873/15054 cut-off events. [2022-11-16 11:08:52,251 INFO L131 PetriNetUnfolder]: For 13951/14038 co-relation queries the response was YES. [2022-11-16 11:08:52,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32839 conditions, 15054 events. 5873/15054 cut-off events. For 13951/14038 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 140585 event pairs, 3463 based on Foata normal form. 12/13948 useless extension candidates. Maximal degree in co-relation 32787. Up to 7909 conditions per place. [2022-11-16 11:08:52,411 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 118 selfloop transitions, 17 changer transitions 0/474 dead transitions. [2022-11-16 11:08:52,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 474 transitions, 1549 flow [2022-11-16 11:08:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2491 transitions. [2022-11-16 11:08:52,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863005050505051 [2022-11-16 11:08:52,422 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2491 transitions. [2022-11-16 11:08:52,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2491 transitions. [2022-11-16 11:08:52,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:52,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2491 transitions. [2022-11-16 11:08:52,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:52,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:52,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:52,436 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 1149 flow. Second operand 6 states and 2491 transitions. [2022-11-16 11:08:52,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 474 transitions, 1549 flow [2022-11-16 11:08:52,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 474 transitions, 1524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:08:52,474 INFO L231 Difference]: Finished difference. Result has 449 places, 458 transitions, 1304 flow [2022-11-16 11:08:52,475 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1304, PETRI_PLACES=449, PETRI_TRANSITIONS=458} [2022-11-16 11:08:52,475 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2022-11-16 11:08:52,475 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 458 transitions, 1304 flow [2022-11-16 11:08:52,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:52,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:52,477 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] [2022-11-16 11:08:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:08:52,477 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:52,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1228186194, now seen corresponding path program 1 times [2022-11-16 11:08:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:52,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128536988] [2022-11-16 11:08:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:08:53,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128536988] [2022-11-16 11:08:53,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128536988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:08:53,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:08:53,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:08:53,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570110964] [2022-11-16 11:08:53,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:08:53,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:08:53,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:08:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:08:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:08:53,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-16 11:08:53,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 458 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:53,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:08:53,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-16 11:08:53,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:08:58,638 INFO L130 PetriNetUnfolder]: 5953/15203 cut-off events. [2022-11-16 11:08:58,638 INFO L131 PetriNetUnfolder]: For 19036/19159 co-relation queries the response was YES. [2022-11-16 11:08:58,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34957 conditions, 15203 events. 5953/15203 cut-off events. For 19036/19159 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 141912 event pairs, 3606 based on Foata normal form. 0/14108 useless extension candidates. Maximal degree in co-relation 34903. Up to 8233 conditions per place. [2022-11-16 11:08:58,815 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 122 selfloop transitions, 4 changer transitions 0/465 dead transitions. [2022-11-16 11:08:58,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 465 transitions, 1570 flow [2022-11-16 11:08:58,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:08:58,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:08:58,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2474 transitions. [2022-11-16 11:08:58,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7809343434343434 [2022-11-16 11:08:58,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2474 transitions. [2022-11-16 11:08:58,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2474 transitions. [2022-11-16 11:08:58,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:08:58,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2474 transitions. [2022-11-16 11:08:58,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,831 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,831 INFO L175 Difference]: Start difference. First operand has 449 places, 458 transitions, 1304 flow. Second operand 6 states and 2474 transitions. [2022-11-16 11:08:58,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 465 transitions, 1570 flow [2022-11-16 11:08:58,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 465 transitions, 1570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:08:58,893 INFO L231 Difference]: Finished difference. Result has 453 places, 457 transitions, 1310 flow [2022-11-16 11:08:58,894 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1310, PETRI_PLACES=453, PETRI_TRANSITIONS=457} [2022-11-16 11:08:58,894 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2022-11-16 11:08:58,894 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 457 transitions, 1310 flow [2022-11-16 11:08:58,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:08:58,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:08:58,896 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] [2022-11-16 11:08:58,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 11:08:58,897 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:08:58,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:08:58,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1998160277, now seen corresponding path program 1 times [2022-11-16 11:08:58,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:08:58,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366865541] [2022-11-16 11:08:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:58,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:08:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:08:59,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:08:59,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366865541] [2022-11-16 11:08:59,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366865541] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:08:59,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071171627] [2022-11-16 11:08:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:08:59,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:08:59,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:08:59,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:08:59,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 11:08:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:08:59,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:08:59,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:09:00,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:09:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 11:09:01,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071171627] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:09:01,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:09:01,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-16 11:09:01,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32728433] [2022-11-16 11:09:01,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:09:01,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 11:09:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 11:09:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-16 11:09:01,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-16 11:09:01,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 457 transitions, 1310 flow. Second operand has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:01,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:01,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-16 11:09:01,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:15,706 INFO L130 PetriNetUnfolder]: 19022/40535 cut-off events. [2022-11-16 11:09:15,706 INFO L131 PetriNetUnfolder]: For 52782/55516 co-relation queries the response was YES. [2022-11-16 11:09:16,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94205 conditions, 40535 events. 19022/40535 cut-off events. For 52782/55516 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 385248 event pairs, 10380 based on Foata normal form. 315/35504 useless extension candidates. Maximal degree in co-relation 94150. Up to 20549 conditions per place. [2022-11-16 11:09:16,344 INFO L137 encePairwiseOnDemand]: 499/528 looper letters, 359 selfloop transitions, 70 changer transitions 0/745 dead transitions. [2022-11-16 11:09:16,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 745 transitions, 3419 flow [2022-11-16 11:09:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:09:16,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:09:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8498 transitions. [2022-11-16 11:09:16,359 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664141414141414 [2022-11-16 11:09:16,360 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8498 transitions. [2022-11-16 11:09:16,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8498 transitions. [2022-11-16 11:09:16,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:16,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8498 transitions. [2022-11-16 11:09:16,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 404.6666666666667) internal successors, (8498), 21 states have internal predecessors, (8498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,393 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,394 INFO L175 Difference]: Start difference. First operand has 453 places, 457 transitions, 1310 flow. Second operand 21 states and 8498 transitions. [2022-11-16 11:09:16,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 745 transitions, 3419 flow [2022-11-16 11:09:16,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 745 transitions, 3412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:09:16,573 INFO L231 Difference]: Finished difference. Result has 478 places, 498 transitions, 1738 flow [2022-11-16 11:09:16,574 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1738, PETRI_PLACES=478, PETRI_TRANSITIONS=498} [2022-11-16 11:09:16,575 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 14 predicate places. [2022-11-16 11:09:16,575 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 498 transitions, 1738 flow [2022-11-16 11:09:16,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:16,577 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] [2022-11-16 11:09:16,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:16,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_968989be-7f48-42d7-8a9e-0613135c320c/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:09:16,784 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:09:16,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:16,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1635788346, now seen corresponding path program 1 times [2022-11-16 11:09:16,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:16,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715250919] [2022-11-16 11:09:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:16,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:16,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:16,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715250919] [2022-11-16 11:09:16,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715250919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:16,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:16,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:09:16,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812205740] [2022-11-16 11:09:16,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:16,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:09:16,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:09:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:16,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-16 11:09:16,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 498 transitions, 1738 flow. Second operand has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:16,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:16,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-16 11:09:16,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:09:18,176 INFO L130 PetriNetUnfolder]: 658/4102 cut-off events. [2022-11-16 11:09:18,177 INFO L131 PetriNetUnfolder]: For 4563/4672 co-relation queries the response was YES. [2022-11-16 11:09:18,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 4102 events. 658/4102 cut-off events. For 4563/4672 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26632 event pairs, 159 based on Foata normal form. 0/3874 useless extension candidates. Maximal degree in co-relation 7621. Up to 819 conditions per place. [2022-11-16 11:09:18,204 INFO L137 encePairwiseOnDemand]: 526/528 looper letters, 33 selfloop transitions, 1 changer transitions 0/497 dead transitions. [2022-11-16 11:09:18,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 497 transitions, 1804 flow [2022-11-16 11:09:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:09:18,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:09:18,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-16 11:09:18,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9179292929292929 [2022-11-16 11:09:18,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-16 11:09:18,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-16 11:09:18,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:09:18,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-16 11:09:18,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:18,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:18,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:18,212 INFO L175 Difference]: Start difference. First operand has 478 places, 498 transitions, 1738 flow. Second operand 3 states and 1454 transitions. [2022-11-16 11:09:18,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 497 transitions, 1804 flow [2022-11-16 11:09:18,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 497 transitions, 1747 flow, removed 20 selfloop flow, removed 3 redundant places. [2022-11-16 11:09:18,234 INFO L231 Difference]: Finished difference. Result has 476 places, 497 transitions, 1681 flow [2022-11-16 11:09:18,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1681, PETRI_PLACES=476, PETRI_TRANSITIONS=497} [2022-11-16 11:09:18,236 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 12 predicate places. [2022-11-16 11:09:18,236 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 497 transitions, 1681 flow [2022-11-16 11:09:18,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:18,237 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:09:18,237 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] [2022-11-16 11:09:18,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 11:09:18,237 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-16 11:09:18,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:18,238 INFO L85 PathProgramCache]: Analyzing trace with hash -129611610, now seen corresponding path program 1 times [2022-11-16 11:09:18,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:18,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328614687] [2022-11-16 11:09:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:18,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:18,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:18,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:18,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328614687] [2022-11-16 11:09:18,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328614687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:18,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:18,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:09:18,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025757448] [2022-11-16 11:09:18,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:18,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:09:18,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:09:18,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:18,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-16 11:09:18,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 497 transitions, 1681 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:18,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:09:18,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-16 11:09:18,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand