./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN --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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- 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-6b4ec56 [2022-11-20 11:40:26,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:40:26,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:40:26,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:40:26,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:40:26,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:40:26,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:40:26,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:40:26,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:40:26,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:40:26,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:40:26,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:40:26,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:40:26,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:40:26,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:40:26,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:40:26,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:40:26,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:40:26,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:40:26,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:40:26,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:40:26,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:40:26,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:40:26,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:40:26,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:40:26,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:40:26,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:40:26,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:40:26,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:40:26,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:40:26,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:40:26,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:40:26,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:40:26,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:40:26,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:40:26,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:40:26,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:40:26,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:40:26,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:40:26,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:40:26,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:40:26,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:40:26,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:40:26,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:40:26,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:40:26,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:40:26,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:40:26,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:40:26,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:40:26,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:40:26,242 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:40:26,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:40:26,243 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:40:26,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:40:26,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:40:26,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:40:26,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:40:26,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:40:26,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:40:26,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:40:26,246 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:40:26,246 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:40:26,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:40:26,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:40:26,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:40:26,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:40:26,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:40:26,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:40:26,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:40:26,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:40:26,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:40:26,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:40:26,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:40:26,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:40:26,251 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:40:26,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:40:26,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:40:26,252 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_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2022-11-20 11:40:26,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:40:26,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:40:26,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:40:26,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:40:26,657 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:40:26,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-20 11:40:30,712 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:40:31,022 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:40:31,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-20 11:40:31,040 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/data/482436475/39186b4467164b2f9c0d08349cec6d33/FLAGad3c7cd8b [2022-11-20 11:40:31,060 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/data/482436475/39186b4467164b2f9c0d08349cec6d33 [2022-11-20 11:40:31,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:40:31,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:40:31,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:40:31,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:40:31,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:40:31,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2986ee1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31, skipping insertion in model container [2022-11-20 11:40:31,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:40:31,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:40:31,464 WARN L237 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_2bebb377-b69a-4d44-8552-af0860e48c0c/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-20 11:40:31,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:40:31,494 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:40:31,539 WARN L237 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_2bebb377-b69a-4d44-8552-af0860e48c0c/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-20 11:40:31,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:40:31,571 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:40:31,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31 WrapperNode [2022-11-20 11:40:31,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:40:31,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:40:31,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:40:31,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:40:31,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,665 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2022-11-20 11:40:31,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:40:31,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:40:31,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:40:31,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:40:31,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:40:31,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:40:31,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:40:31,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:40:31,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (1/1) ... [2022-11-20 11:40:31,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:40:31,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:40:31,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:40:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bebb377-b69a-4d44-8552-af0860e48c0c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:40:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:40:31,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:40:31,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:40:31,845 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:40:31,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:40:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:40:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:40:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:40:31,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:40:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:40:31,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:40:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:40:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:40:31,850 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:40:32,034 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:40:32,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:40:33,244 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:40:33,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:40:33,265 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:40:33,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:33 BoogieIcfgContainer [2022-11-20 11:40:33,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:40:33,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:40:33,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:40:33,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:40:33,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:40:31" (1/3) ... [2022-11-20 11:40:33,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623060d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:33, skipping insertion in model container [2022-11-20 11:40:33,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:40:31" (2/3) ... [2022-11-20 11:40:33,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@623060d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:40:33, skipping insertion in model container [2022-11-20 11:40:33,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:40:33" (3/3) ... [2022-11-20 11:40:33,307 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2022-11-20 11:40:33,327 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:40:33,341 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:40:33,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-11-20 11:40:33,342 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:40:33,519 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:40:33,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 484 transitions, 984 flow [2022-11-20 11:40:33,854 INFO L130 PetriNetUnfolder]: 26/482 cut-off events. [2022-11-20 11:40:33,854 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:40:33,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 482 events. 26/482 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1060 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 286. Up to 3 conditions per place. [2022-11-20 11:40:33,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 465 places, 484 transitions, 984 flow [2022-11-20 11:40:33,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 461 transitions, 934 flow [2022-11-20 11:40:33,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:40:33,932 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;@48cb6bc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:40:33,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-11-20 11:40:33,942 INFO L130 PetriNetUnfolder]: 0/26 cut-off events. [2022-11-20 11:40:33,943 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:40:33,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:33,944 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] [2022-11-20 11:40:33,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:33,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:33,956 INFO L85 PathProgramCache]: Analyzing trace with hash -646552277, now seen corresponding path program 1 times [2022-11-20 11:40:33,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:33,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76295978] [2022-11-20 11:40:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:33,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76295978] [2022-11-20 11:40:34,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76295978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:34,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:34,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:34,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931801124] [2022-11-20 11:40:34,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:34,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:34,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:34,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:34,408 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:34,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 461 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:34,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:34,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:34,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:35,017 INFO L130 PetriNetUnfolder]: 107/1460 cut-off events. [2022-11-20 11:40:35,017 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-20 11:40:35,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1460 events. 107/1460 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9467 event pairs, 48 based on Foata normal form. 22/1175 useless extension candidates. Maximal degree in co-relation 1237. Up to 116 conditions per place. [2022-11-20 11:40:35,042 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 19 selfloop transitions, 2 changer transitions 6/450 dead transitions. [2022-11-20 11:40:35,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 450 transitions, 954 flow [2022-11-20 11:40:35,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:35,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-20 11:40:35,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-20 11:40:35,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-20 11:40:35,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-20 11:40:35,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:35,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-20 11:40:35,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,115 INFO L175 Difference]: Start difference. First operand has 444 places, 461 transitions, 934 flow. Second operand 3 states and 1382 transitions. [2022-11-20 11:40:35,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 450 transitions, 954 flow [2022-11-20 11:40:35,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 450 transitions, 946 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:40:35,150 INFO L231 Difference]: Finished difference. Result has 441 places, 444 transitions, 896 flow [2022-11-20 11:40:35,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=441, PETRI_TRANSITIONS=444} [2022-11-20 11:40:35,161 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -3 predicate places. [2022-11-20 11:40:35,163 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 444 transitions, 896 flow [2022-11-20 11:40:35,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:35,165 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] [2022-11-20 11:40:35,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:40:35,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:35,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:35,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1801996933, now seen corresponding path program 1 times [2022-11-20 11:40:35,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:35,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010891632] [2022-11-20 11:40:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:35,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:35,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:35,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:35,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010891632] [2022-11-20 11:40:35,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010891632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:35,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:35,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:35,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378396345] [2022-11-20 11:40:35,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:35,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:35,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:35,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:35,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:35,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:35,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 444 transitions, 896 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:35,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:35,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:35,689 INFO L130 PetriNetUnfolder]: 102/1313 cut-off events. [2022-11-20 11:40:35,690 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-20 11:40:35,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1448 conditions, 1313 events. 102/1313 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8118 event pairs, 48 based on Foata normal form. 0/1044 useless extension candidates. Maximal degree in co-relation 1413. Up to 121 conditions per place. [2022-11-20 11:40:35,707 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-20 11:40:35,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 443 transitions, 936 flow [2022-11-20 11:40:35,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:35,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:35,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-20 11:40:35,713 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-20 11:40:35,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-20 11:40:35,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-20 11:40:35,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:35,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-20 11:40:35,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,724 INFO L175 Difference]: Start difference. First operand has 441 places, 444 transitions, 896 flow. Second operand 3 states and 1372 transitions. [2022-11-20 11:40:35,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 443 transitions, 936 flow [2022-11-20 11:40:35,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 443 transitions, 932 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:35,736 INFO L231 Difference]: Finished difference. Result has 434 places, 443 transitions, 894 flow [2022-11-20 11:40:35,737 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=434, PETRI_TRANSITIONS=443} [2022-11-20 11:40:35,738 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -10 predicate places. [2022-11-20 11:40:35,738 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 443 transitions, 894 flow [2022-11-20 11:40:35,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:35,741 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] [2022-11-20 11:40:35,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:40:35,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:35,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:35,742 INFO L85 PathProgramCache]: Analyzing trace with hash 314167098, now seen corresponding path program 1 times [2022-11-20 11:40:35,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:35,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423201744] [2022-11-20 11:40:35,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:35,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:35,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:35,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423201744] [2022-11-20 11:40:35,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423201744] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:35,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:35,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:35,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909670883] [2022-11-20 11:40:35,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:35,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:35,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:35,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:35,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:35,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 484 [2022-11-20 11:40:35,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 443 transitions, 894 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:35,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:35,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 484 [2022-11-20 11:40:35,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:36,352 INFO L130 PetriNetUnfolder]: 114/1425 cut-off events. [2022-11-20 11:40:36,352 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-20 11:40:36,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 1425 events. 114/1425 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9032 event pairs, 48 based on Foata normal form. 0/1139 useless extension candidates. Maximal degree in co-relation 1536. Up to 139 conditions per place. [2022-11-20 11:40:36,376 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/442 dead transitions. [2022-11-20 11:40:36,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 442 transitions, 940 flow [2022-11-20 11:40:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:36,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2022-11-20 11:40:36,383 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2022-11-20 11:40:36,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:36,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,398 INFO L175 Difference]: Start difference. First operand has 434 places, 443 transitions, 894 flow. Second operand 3 states and 1366 transitions. [2022-11-20 11:40:36,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 442 transitions, 940 flow [2022-11-20 11:40:36,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 442 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:36,410 INFO L231 Difference]: Finished difference. Result has 433 places, 442 transitions, 892 flow [2022-11-20 11:40:36,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=892, PETRI_PLACES=433, PETRI_TRANSITIONS=442} [2022-11-20 11:40:36,415 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -11 predicate places. [2022-11-20 11:40:36,415 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 442 transitions, 892 flow [2022-11-20 11:40:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,417 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:36,417 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] [2022-11-20 11:40:36,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:40:36,418 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:36,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:36,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1976251258, now seen corresponding path program 1 times [2022-11-20 11:40:36,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:36,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531720295] [2022-11-20 11:40:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:36,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:36,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531720295] [2022-11-20 11:40:36,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531720295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:36,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:36,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:36,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182522731] [2022-11-20 11:40:36,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:36,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:36,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:36,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 484 [2022-11-20 11:40:36,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 442 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:36,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 484 [2022-11-20 11:40:36,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:36,934 INFO L130 PetriNetUnfolder]: 116/1248 cut-off events. [2022-11-20 11:40:36,935 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-20 11:40:36,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 1248 events. 116/1248 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 7559 event pairs, 48 based on Foata normal form. 0/997 useless extension candidates. Maximal degree in co-relation 1361. Up to 148 conditions per place. [2022-11-20 11:40:36,955 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/441 dead transitions. [2022-11-20 11:40:36,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 441 transitions, 938 flow [2022-11-20 11:40:36,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:36,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1366 transitions. [2022-11-20 11:40:36,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940771349862259 [2022-11-20 11:40:36,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:36,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1366 transitions. [2022-11-20 11:40:36,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,979 INFO L175 Difference]: Start difference. First operand has 433 places, 442 transitions, 892 flow. Second operand 3 states and 1366 transitions. [2022-11-20 11:40:36,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 441 transitions, 938 flow [2022-11-20 11:40:36,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 441 transitions, 934 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:36,989 INFO L231 Difference]: Finished difference. Result has 432 places, 441 transitions, 890 flow [2022-11-20 11:40:36,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=890, PETRI_PLACES=432, PETRI_TRANSITIONS=441} [2022-11-20 11:40:36,994 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -12 predicate places. [2022-11-20 11:40:36,995 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 441 transitions, 890 flow [2022-11-20 11:40:36,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:36,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:36,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:36,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:40:36,997 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:36,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:36,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1872948338, now seen corresponding path program 1 times [2022-11-20 11:40:36,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:37,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510248029] [2022-11-20 11:40:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:37,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:37,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510248029] [2022-11-20 11:40:37,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510248029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:37,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:37,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:37,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018126003] [2022-11-20 11:40:37,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:37,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:37,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:37,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:37,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:37,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 441 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,111 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:37,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:37,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:37,460 INFO L130 PetriNetUnfolder]: 78/1201 cut-off events. [2022-11-20 11:40:37,460 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-20 11:40:37,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 1201 events. 78/1201 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6922 event pairs, 24 based on Foata normal form. 0/991 useless extension candidates. Maximal degree in co-relation 1233. Up to 76 conditions per place. [2022-11-20 11:40:37,477 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 1 changer transitions 0/436 dead transitions. [2022-11-20 11:40:37,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 436 transitions, 912 flow [2022-11-20 11:40:37,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:37,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-11-20 11:40:37,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442148760330579 [2022-11-20 11:40:37,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-11-20 11:40:37,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-11-20 11:40:37,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:37,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-11-20 11:40:37,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,496 INFO L175 Difference]: Start difference. First operand has 432 places, 441 transitions, 890 flow. Second operand 3 states and 1371 transitions. [2022-11-20 11:40:37,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 436 transitions, 912 flow [2022-11-20 11:40:37,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 436 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:37,506 INFO L231 Difference]: Finished difference. Result has 427 places, 436 transitions, 878 flow [2022-11-20 11:40:37,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=427, PETRI_TRANSITIONS=436} [2022-11-20 11:40:37,511 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-20 11:40:37,511 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 436 transitions, 878 flow [2022-11-20 11:40:37,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:37,513 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:37,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:40:37,513 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:37,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1911957839, now seen corresponding path program 1 times [2022-11-20 11:40:37,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:37,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705553028] [2022-11-20 11:40:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:37,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:37,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:37,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:37,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705553028] [2022-11-20 11:40:37,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705553028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:37,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:37,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:37,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031387069] [2022-11-20 11:40:37,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:37,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:37,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:37,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:37,648 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:37,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 436 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:37,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:37,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:37,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:38,056 INFO L130 PetriNetUnfolder]: 116/1341 cut-off events. [2022-11-20 11:40:38,057 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-20 11:40:38,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 1341 events. 116/1341 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7681 event pairs, 48 based on Foata normal form. 0/1093 useless extension candidates. Maximal degree in co-relation 1440. Up to 142 conditions per place. [2022-11-20 11:40:38,073 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2022-11-20 11:40:38,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 435 transitions, 918 flow [2022-11-20 11:40:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:38,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-20 11:40:38,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-20 11:40:38,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-20 11:40:38,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-20 11:40:38,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:38,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-20 11:40:38,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:38,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:38,089 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:38,089 INFO L175 Difference]: Start difference. First operand has 427 places, 436 transitions, 878 flow. Second operand 3 states and 1372 transitions. [2022-11-20 11:40:38,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 435 transitions, 918 flow [2022-11-20 11:40:38,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 435 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:40:38,100 INFO L231 Difference]: Finished difference. Result has 427 places, 435 transitions, 879 flow [2022-11-20 11:40:38,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=879, PETRI_PLACES=427, PETRI_TRANSITIONS=435} [2022-11-20 11:40:38,102 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-20 11:40:38,102 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 435 transitions, 879 flow [2022-11-20 11:40:38,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:38,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:38,104 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] [2022-11-20 11:40:38,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:40:38,105 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:38,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:38,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1163164829, now seen corresponding path program 1 times [2022-11-20 11:40:38,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:38,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425446858] [2022-11-20 11:40:38,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:38,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:38,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:38,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425446858] [2022-11-20 11:40:38,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425446858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:38,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:38,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:40:38,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268868417] [2022-11-20 11:40:38,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:38,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:40:38,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:38,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:40:38,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:40:38,830 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 484 [2022-11-20 11:40:38,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 435 transitions, 879 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:38,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:38,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 484 [2022-11-20 11:40:38,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:46,726 INFO L130 PetriNetUnfolder]: 9016/27095 cut-off events. [2022-11-20 11:40:46,726 INFO L131 PetriNetUnfolder]: For 68/79 co-relation queries the response was YES. [2022-11-20 11:40:46,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40102 conditions, 27095 events. 9016/27095 cut-off events. For 68/79 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 296372 event pairs, 7968 based on Foata normal form. 0/22012 useless extension candidates. Maximal degree in co-relation 40047. Up to 12966 conditions per place. [2022-11-20 11:40:47,015 INFO L137 encePairwiseOnDemand]: 472/484 looper letters, 86 selfloop transitions, 10 changer transitions 0/433 dead transitions. [2022-11-20 11:40:47,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 433 transitions, 1067 flow [2022-11-20 11:40:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:40:47,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:40:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2342 transitions. [2022-11-20 11:40:47,023 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8064738292011019 [2022-11-20 11:40:47,024 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2342 transitions. [2022-11-20 11:40:47,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2342 transitions. [2022-11-20 11:40:47,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:47,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2342 transitions. [2022-11-20 11:40:47,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.3333333333333) internal successors, (2342), 6 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,044 INFO L175 Difference]: Start difference. First operand has 427 places, 435 transitions, 879 flow. Second operand 6 states and 2342 transitions. [2022-11-20 11:40:47,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 433 transitions, 1067 flow [2022-11-20 11:40:47,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 433 transitions, 1063 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:47,055 INFO L231 Difference]: Finished difference. Result has 428 places, 433 transitions, 891 flow [2022-11-20 11:40:47,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=891, PETRI_PLACES=428, PETRI_TRANSITIONS=433} [2022-11-20 11:40:47,057 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -16 predicate places. [2022-11-20 11:40:47,057 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 433 transitions, 891 flow [2022-11-20 11:40:47,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:47,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:47,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:40:47,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:47,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:47,061 INFO L85 PathProgramCache]: Analyzing trace with hash -834315219, now seen corresponding path program 1 times [2022-11-20 11:40:47,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:47,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925073861] [2022-11-20 11:40:47,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:47,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:47,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:47,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925073861] [2022-11-20 11:40:47,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925073861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:47,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:47,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:47,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632328398] [2022-11-20 11:40:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:47,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:47,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:47,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:47,169 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:47,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 433 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:47,183 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:47,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:47,432 INFO L130 PetriNetUnfolder]: 80/1064 cut-off events. [2022-11-20 11:40:47,432 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-20 11:40:47,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 1064 events. 80/1064 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5841 event pairs, 24 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1135. Up to 82 conditions per place. [2022-11-20 11:40:47,449 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 1 changer transitions 0/428 dead transitions. [2022-11-20 11:40:47,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 428 transitions, 913 flow [2022-11-20 11:40:47,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-11-20 11:40:47,454 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442148760330579 [2022-11-20 11:40:47,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-11-20 11:40:47,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-11-20 11:40:47,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:47,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-11-20 11:40:47,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,476 INFO L175 Difference]: Start difference. First operand has 428 places, 433 transitions, 891 flow. Second operand 3 states and 1371 transitions. [2022-11-20 11:40:47,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 428 transitions, 913 flow [2022-11-20 11:40:47,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 428 transitions, 893 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:40:47,488 INFO L231 Difference]: Finished difference. Result has 420 places, 428 transitions, 863 flow [2022-11-20 11:40:47,489 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=420, PETRI_TRANSITIONS=428} [2022-11-20 11:40:47,493 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -24 predicate places. [2022-11-20 11:40:47,494 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 428 transitions, 863 flow [2022-11-20 11:40:47,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:47,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:40:47,496 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:47,497 INFO L85 PathProgramCache]: Analyzing trace with hash -691854815, now seen corresponding path program 1 times [2022-11-20 11:40:47,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:47,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695879691] [2022-11-20 11:40:47,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:47,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:47,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:47,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695879691] [2022-11-20 11:40:47,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695879691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:47,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:47,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:47,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985963581] [2022-11-20 11:40:47,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:47,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:47,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:47,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:47,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:40:47,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 428 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:47,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:47,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:40:47,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:48,068 INFO L130 PetriNetUnfolder]: 108/1306 cut-off events. [2022-11-20 11:40:48,069 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-20 11:40:48,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1454 conditions, 1306 events. 108/1306 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7566 event pairs, 48 based on Foata normal form. 0/1097 useless extension candidates. Maximal degree in co-relation 1398. Up to 134 conditions per place. [2022-11-20 11:40:48,088 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-20 11:40:48,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 427 transitions, 903 flow [2022-11-20 11:40:48,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2022-11-20 11:40:48,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9449035812672176 [2022-11-20 11:40:48,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1372 transitions. [2022-11-20 11:40:48,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1372 transitions. [2022-11-20 11:40:48,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:48,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1372 transitions. [2022-11-20 11:40:48,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,106 INFO L175 Difference]: Start difference. First operand has 420 places, 428 transitions, 863 flow. Second operand 3 states and 1372 transitions. [2022-11-20 11:40:48,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 427 transitions, 903 flow [2022-11-20 11:40:48,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 427 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:40:48,120 INFO L231 Difference]: Finished difference. Result has 420 places, 427 transitions, 864 flow [2022-11-20 11:40:48,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=418, 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=864, PETRI_PLACES=420, PETRI_TRANSITIONS=427} [2022-11-20 11:40:48,122 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -24 predicate places. [2022-11-20 11:40:48,122 INFO L495 AbstractCegarLoop]: Abstraction has has 420 places, 427 transitions, 864 flow [2022-11-20 11:40:48,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:48,124 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] [2022-11-20 11:40:48,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:40:48,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:48,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash 99158977, now seen corresponding path program 1 times [2022-11-20 11:40:48,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:48,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091733249] [2022-11-20 11:40:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:48,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:48,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:48,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091733249] [2022-11-20 11:40:48,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091733249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:48,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:48,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:48,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371253526] [2022-11-20 11:40:48,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:48,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:48,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-20 11:40:48,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 427 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:48,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-20 11:40:48,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:48,532 INFO L130 PetriNetUnfolder]: 73/1157 cut-off events. [2022-11-20 11:40:48,532 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 11:40:48,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1232 conditions, 1157 events. 73/1157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6653 event pairs, 16 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1175. Up to 58 conditions per place. [2022-11-20 11:40:48,550 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-20 11:40:48,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 426 transitions, 897 flow [2022-11-20 11:40:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:48,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-11-20 11:40:48,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504132231404959 [2022-11-20 11:40:48,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-11-20 11:40:48,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-11-20 11:40:48,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:48,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-11-20 11:40:48,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,568 INFO L175 Difference]: Start difference. First operand has 420 places, 427 transitions, 864 flow. Second operand 3 states and 1380 transitions. [2022-11-20 11:40:48,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 426 transitions, 897 flow [2022-11-20 11:40:48,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 426 transitions, 893 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:48,581 INFO L231 Difference]: Finished difference. Result has 417 places, 425 transitions, 866 flow [2022-11-20 11:40:48,583 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=417, PETRI_TRANSITIONS=425} [2022-11-20 11:40:48,584 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-20 11:40:48,584 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 425 transitions, 866 flow [2022-11-20 11:40:48,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:48,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:48,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:40:48,586 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:48,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:48,587 INFO L85 PathProgramCache]: Analyzing trace with hash 802531843, now seen corresponding path program 1 times [2022-11-20 11:40:48,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:48,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262273089] [2022-11-20 11:40:48,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:48,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:48,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262273089] [2022-11-20 11:40:48,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262273089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:48,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:48,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484719734] [2022-11-20 11:40:48,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:48,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:48,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:48,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:48,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-20 11:40:48,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 425 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:48,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:48,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-20 11:40:48,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:48,990 INFO L130 PetriNetUnfolder]: 74/1147 cut-off events. [2022-11-20 11:40:48,991 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 11:40:48,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1233 conditions, 1147 events. 74/1147 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6547 event pairs, 16 based on Foata normal form. 0/986 useless extension candidates. Maximal degree in co-relation 1176. Up to 60 conditions per place. [2022-11-20 11:40:49,002 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 15 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-20 11:40:49,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 424 transitions, 899 flow [2022-11-20 11:40:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1380 transitions. [2022-11-20 11:40:49,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9504132231404959 [2022-11-20 11:40:49,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1380 transitions. [2022-11-20 11:40:49,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1380 transitions. [2022-11-20 11:40:49,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:49,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1380 transitions. [2022-11-20 11:40:49,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.0) internal successors, (1380), 3 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,017 INFO L175 Difference]: Start difference. First operand has 417 places, 425 transitions, 866 flow. Second operand 3 states and 1380 transitions. [2022-11-20 11:40:49,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 424 transitions, 899 flow [2022-11-20 11:40:49,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 424 transitions, 899 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:40:49,027 INFO L231 Difference]: Finished difference. Result has 416 places, 423 transitions, 872 flow [2022-11-20 11:40:49,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=416, PETRI_TRANSITIONS=423} [2022-11-20 11:40:49,028 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -28 predicate places. [2022-11-20 11:40:49,029 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 423 transitions, 872 flow [2022-11-20 11:40:49,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:49,030 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] [2022-11-20 11:40:49,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:40:49,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:49,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1188736936, now seen corresponding path program 1 times [2022-11-20 11:40:49,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:49,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030024008] [2022-11-20 11:40:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:49,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:49,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:49,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030024008] [2022-11-20 11:40:49,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030024008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:49,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:49,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:49,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324275423] [2022-11-20 11:40:49,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:49,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:49,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:49,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:49,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:49,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-20 11:40:49,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 423 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:49,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-20 11:40:49,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:49,356 INFO L130 PetriNetUnfolder]: 54/989 cut-off events. [2022-11-20 11:40:49,356 INFO L131 PetriNetUnfolder]: For 3/7 co-relation queries the response was YES. [2022-11-20 11:40:49,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 989 events. 54/989 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4647 event pairs, 7 based on Foata normal form. 1/859 useless extension candidates. Maximal degree in co-relation 1013. Up to 39 conditions per place. [2022-11-20 11:40:49,368 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 22 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-20 11:40:49,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 423 transitions, 921 flow [2022-11-20 11:40:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1369 transitions. [2022-11-20 11:40:49,374 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9428374655647382 [2022-11-20 11:40:49,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1369 transitions. [2022-11-20 11:40:49,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1369 transitions. [2022-11-20 11:40:49,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:49,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1369 transitions. [2022-11-20 11:40:49,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,384 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,385 INFO L175 Difference]: Start difference. First operand has 416 places, 423 transitions, 872 flow. Second operand 3 states and 1369 transitions. [2022-11-20 11:40:49,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 423 transitions, 921 flow [2022-11-20 11:40:49,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 423 transitions, 921 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:40:49,395 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 874 flow [2022-11-20 11:40:49,396 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2022-11-20 11:40:49,398 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-20 11:40:49,398 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 874 flow [2022-11-20 11:40:49,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:49,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:49,400 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] [2022-11-20 11:40:49,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:40:49,400 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:49,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1694080077, now seen corresponding path program 1 times [2022-11-20 11:40:49,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:49,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018551388] [2022-11-20 11:40:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:49,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:50,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:50,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018551388] [2022-11-20 11:40:50,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018551388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:50,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:50,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:40:50,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917683056] [2022-11-20 11:40:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:50,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:40:50,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:50,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:40:50,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:40:50,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 484 [2022-11-20 11:40:50,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 391.8333333333333) internal successors, (2351), 6 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:50,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:50,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 484 [2022-11-20 11:40:50,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:55,701 INFO L130 PetriNetUnfolder]: 8976/20089 cut-off events. [2022-11-20 11:40:55,702 INFO L131 PetriNetUnfolder]: For 31/398 co-relation queries the response was YES. [2022-11-20 11:40:55,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33727 conditions, 20089 events. 8976/20089 cut-off events. For 31/398 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 182663 event pairs, 2424 based on Foata normal form. 73/17342 useless extension candidates. Maximal degree in co-relation 33717. Up to 4337 conditions per place. [2022-11-20 11:40:55,940 INFO L137 encePairwiseOnDemand]: 479/484 looper letters, 265 selfloop transitions, 4 changer transitions 0/613 dead transitions. [2022-11-20 11:40:55,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 613 transitions, 1794 flow [2022-11-20 11:40:55,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:40:55,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:40:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2610 transitions. [2022-11-20 11:40:55,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8987603305785123 [2022-11-20 11:40:55,951 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2610 transitions. [2022-11-20 11:40:55,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2610 transitions. [2022-11-20 11:40:55,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:55,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2610 transitions. [2022-11-20 11:40:55,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 435.0) internal successors, (2610), 6 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,972 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,973 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 874 flow. Second operand 6 states and 2610 transitions. [2022-11-20 11:40:55,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 613 transitions, 1794 flow [2022-11-20 11:40:55,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 613 transitions, 1790 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:55,992 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 876 flow [2022-11-20 11:40:55,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=876, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-20 11:40:55,994 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-20 11:40:55,994 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 876 flow [2022-11-20 11:40:55,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 391.8333333333333) internal successors, (2351), 6 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:55,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:55,996 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:40:55,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:40:55,997 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:55,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:55,998 INFO L85 PathProgramCache]: Analyzing trace with hash 780827771, now seen corresponding path program 1 times [2022-11-20 11:40:55,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:55,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816661875] [2022-11-20 11:40:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:55,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:56,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:56,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816661875] [2022-11-20 11:40:56,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816661875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:56,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:56,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:40:56,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686656857] [2022-11-20 11:40:56,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:56,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:56,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:56,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:56,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:56,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 484 [2022-11-20 11:40:56,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:56,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 484 [2022-11-20 11:40:56,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:56,335 INFO L130 PetriNetUnfolder]: 43/824 cut-off events. [2022-11-20 11:40:56,336 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-20 11:40:56,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 824 events. 43/824 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3837 event pairs, 6 based on Foata normal form. 1/721 useless extension candidates. Maximal degree in co-relation 838. Up to 24 conditions per place. [2022-11-20 11:40:56,347 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 11 selfloop transitions, 3 changer transitions 0/423 dead transitions. [2022-11-20 11:40:56,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 423 transitions, 909 flow [2022-11-20 11:40:56,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-20 11:40:56,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-20 11:40:56,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-20 11:40:56,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-20 11:40:56,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:56,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-20 11:40:56,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,367 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 876 flow. Second operand 3 states and 1395 transitions. [2022-11-20 11:40:56,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 423 transitions, 909 flow [2022-11-20 11:40:56,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 423 transitions, 902 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:40:56,382 INFO L231 Difference]: Finished difference. Result has 419 places, 422 transitions, 887 flow [2022-11-20 11:40:56,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=419, PETRI_TRANSITIONS=422} [2022-11-20 11:40:56,384 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-20 11:40:56,385 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 422 transitions, 887 flow [2022-11-20 11:40:56,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:56,386 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] [2022-11-20 11:40:56,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:40:56,387 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 816877009, now seen corresponding path program 1 times [2022-11-20 11:40:56,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:56,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266112506] [2022-11-20 11:40:56,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:56,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:56,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:56,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266112506] [2022-11-20 11:40:56,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266112506] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:56,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:56,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:56,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946549444] [2022-11-20 11:40:56,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:56,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:56,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:56,488 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-20 11:40:56,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 422 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:56,491 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-20 11:40:56,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:56,840 INFO L130 PetriNetUnfolder]: 100/1450 cut-off events. [2022-11-20 11:40:56,840 INFO L131 PetriNetUnfolder]: For 24/25 co-relation queries the response was YES. [2022-11-20 11:40:56,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1450 events. 100/1450 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8603 event pairs, 12 based on Foata normal form. 0/1262 useless extension candidates. Maximal degree in co-relation 1547. Up to 89 conditions per place. [2022-11-20 11:40:56,852 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2022-11-20 11:40:56,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 423 transitions, 930 flow [2022-11-20 11:40:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-20 11:40:56,858 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-20 11:40:56,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-20 11:40:56,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-20 11:40:56,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:56,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-20 11:40:56,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,869 INFO L175 Difference]: Start difference. First operand has 419 places, 422 transitions, 887 flow. Second operand 3 states and 1382 transitions. [2022-11-20 11:40:56,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 423 transitions, 930 flow [2022-11-20 11:40:56,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 423 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:56,938 INFO L231 Difference]: Finished difference. Result has 416 places, 420 transitions, 887 flow [2022-11-20 11:40:56,939 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=887, PETRI_PLACES=416, PETRI_TRANSITIONS=420} [2022-11-20 11:40:56,939 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -28 predicate places. [2022-11-20 11:40:56,939 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 420 transitions, 887 flow [2022-11-20 11:40:56,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:56,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:56,941 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] [2022-11-20 11:40:56,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:40:56,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:56,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash -718606082, now seen corresponding path program 1 times [2022-11-20 11:40:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:56,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196747681] [2022-11-20 11:40:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:56,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:57,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:57,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196747681] [2022-11-20 11:40:57,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196747681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:57,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:57,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:57,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289048999] [2022-11-20 11:40:57,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:57,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-20 11:40:57,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 420 transitions, 887 flow. Second operand has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:57,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-20 11:40:57,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:57,242 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1301] thread2EXIT-->L100-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} OutVars{thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} AuxVars[] AssignedVars[][321], [536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 501#(= |#race~n2~0| 0), 486#(= |#race~n1~0| 0), Black: 512#true, Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 398#L100-7true, 509#(= |#race~count1~0| 0), Black: 534#true, 539#true, 514#(= |#race~count2~0| 0), Black: 507#true]) [2022-11-20 11:40:57,242 INFO L383 tUnfolder$Statistics]: this new event has 203 ancestors and is not cut-off event [2022-11-20 11:40:57,243 INFO L386 tUnfolder$Statistics]: existing Event has 234 ancestors and is not cut-off event [2022-11-20 11:40:57,243 INFO L386 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-11-20 11:40:57,243 INFO L386 tUnfolder$Statistics]: existing Event has 207 ancestors and is not cut-off event [2022-11-20 11:40:57,255 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1238] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet17_3| |v_#race~res2~0_7|) InVars {thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|, #race~res2~0=|v_#race~res2~0_7|} AuxVars[] AssignedVars[#race~res2~0][274], [501#(= |#race~n2~0| 0), 486#(= |#race~n1~0| 0), Black: 512#true, 191#L99-7true, 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 509#(= |#race~count1~0| 0), 539#true, Black: 534#true, 176#L77-7true, Black: 507#true]) [2022-11-20 11:40:57,256 INFO L383 tUnfolder$Statistics]: this new event has 215 ancestors and is cut-off event [2022-11-20 11:40:57,256 INFO L386 tUnfolder$Statistics]: existing Event has 200 ancestors and is cut-off event [2022-11-20 11:40:57,256 INFO L386 tUnfolder$Statistics]: existing Event has 231 ancestors and is cut-off event [2022-11-20 11:40:57,256 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-20 11:40:57,261 INFO L130 PetriNetUnfolder]: 77/984 cut-off events. [2022-11-20 11:40:57,261 INFO L131 PetriNetUnfolder]: For 32/38 co-relation queries the response was YES. [2022-11-20 11:40:57,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 984 events. 77/984 cut-off events. For 32/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5138 event pairs, 11 based on Foata normal form. 1/864 useless extension candidates. Maximal degree in co-relation 1092. Up to 103 conditions per place. [2022-11-20 11:40:57,275 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 21 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-20 11:40:57,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 934 flow [2022-11-20 11:40:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2022-11-20 11:40:57,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9421487603305785 [2022-11-20 11:40:57,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2022-11-20 11:40:57,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2022-11-20 11:40:57,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:57,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2022-11-20 11:40:57,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,294 INFO L175 Difference]: Start difference. First operand has 416 places, 420 transitions, 887 flow. Second operand 3 states and 1368 transitions. [2022-11-20 11:40:57,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 934 flow [2022-11-20 11:40:57,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 934 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:40:57,304 INFO L231 Difference]: Finished difference. Result has 417 places, 419 transitions, 889 flow [2022-11-20 11:40:57,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=415, 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=889, PETRI_PLACES=417, PETRI_TRANSITIONS=419} [2022-11-20 11:40:57,306 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -27 predicate places. [2022-11-20 11:40:57,309 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 419 transitions, 889 flow [2022-11-20 11:40:57,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,310 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:57,310 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] [2022-11-20 11:40:57,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:40:57,311 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:57,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1782736468, now seen corresponding path program 1 times [2022-11-20 11:40:57,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:57,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220871151] [2022-11-20 11:40:57,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:57,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:57,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220871151] [2022-11-20 11:40:57,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220871151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:57,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:57,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:40:57,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421250815] [2022-11-20 11:40:57,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:57,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:57,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:57,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:57,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 484 [2022-11-20 11:40:57,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 419 transitions, 889 flow. Second operand has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:57,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 484 [2022-11-20 11:40:57,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:57,625 INFO L130 PetriNetUnfolder]: 81/1044 cut-off events. [2022-11-20 11:40:57,625 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-20 11:40:57,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1044 events. 81/1044 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5522 event pairs, 12 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1202. Up to 86 conditions per place. [2022-11-20 11:40:57,639 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 11 selfloop transitions, 3 changer transitions 0/421 dead transitions. [2022-11-20 11:40:57,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 421 transitions, 922 flow [2022-11-20 11:40:57,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:57,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:57,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-20 11:40:57,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-20 11:40:57,645 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-20 11:40:57,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-20 11:40:57,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:57,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-20 11:40:57,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,655 INFO L175 Difference]: Start difference. First operand has 417 places, 419 transitions, 889 flow. Second operand 3 states and 1395 transitions. [2022-11-20 11:40:57,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 421 transitions, 922 flow [2022-11-20 11:40:57,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 421 transitions, 918 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:57,666 INFO L231 Difference]: Finished difference. Result has 419 places, 420 transitions, 903 flow [2022-11-20 11:40:57,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=885, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=419, PETRI_TRANSITIONS=420} [2022-11-20 11:40:57,668 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -25 predicate places. [2022-11-20 11:40:57,668 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 420 transitions, 903 flow [2022-11-20 11:40:57,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.0) internal successors, (1386), 3 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,669 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:57,669 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] [2022-11-20 11:40:57,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:40:57,670 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:57,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1966584577, now seen corresponding path program 1 times [2022-11-20 11:40:57,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:57,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604553337] [2022-11-20 11:40:57,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:57,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:57,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:57,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604553337] [2022-11-20 11:40:57,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604553337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:57,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:57,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:57,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441958742] [2022-11-20 11:40:57,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:57,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:57,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:57,742 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-20 11:40:57,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 420 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:57,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:57,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-20 11:40:57,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:58,058 INFO L130 PetriNetUnfolder]: 81/1360 cut-off events. [2022-11-20 11:40:58,058 INFO L131 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2022-11-20 11:40:58,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1360 events. 81/1360 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7713 event pairs, 7 based on Foata normal form. 1/1227 useless extension candidates. Maximal degree in co-relation 1544. Up to 55 conditions per place. [2022-11-20 11:40:58,076 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 21 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2022-11-20 11:40:58,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 420 transitions, 950 flow [2022-11-20 11:40:58,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:40:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:40:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2022-11-20 11:40:58,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9421487603305785 [2022-11-20 11:40:58,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2022-11-20 11:40:58,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2022-11-20 11:40:58,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:58,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2022-11-20 11:40:58,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:58,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:58,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:58,093 INFO L175 Difference]: Start difference. First operand has 419 places, 420 transitions, 903 flow. Second operand 3 states and 1368 transitions. [2022-11-20 11:40:58,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 420 transitions, 950 flow [2022-11-20 11:40:58,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 420 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:58,104 INFO L231 Difference]: Finished difference. Result has 418 places, 419 transitions, 899 flow [2022-11-20 11:40:58,105 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=416, 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=899, PETRI_PLACES=418, PETRI_TRANSITIONS=419} [2022-11-20 11:40:58,106 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -26 predicate places. [2022-11-20 11:40:58,107 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 419 transitions, 899 flow [2022-11-20 11:40:58,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:58,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:58,108 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] [2022-11-20 11:40:58,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:40:58,108 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:58,109 INFO L85 PathProgramCache]: Analyzing trace with hash -506786121, now seen corresponding path program 1 times [2022-11-20 11:40:58,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:58,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172576536] [2022-11-20 11:40:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:58,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:58,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172576536] [2022-11-20 11:40:58,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172576536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:58,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:58,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:40:58,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013505628] [2022-11-20 11:40:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:58,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:40:58,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:58,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:40:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:40:58,453 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-20 11:40:58,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 419 transitions, 899 flow. Second operand has 8 states, 8 states have (on average 391.875) internal successors, (3135), 8 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:58,458 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:58,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-20 11:40:58,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:40:59,295 INFO L130 PetriNetUnfolder]: 382/2668 cut-off events. [2022-11-20 11:40:59,295 INFO L131 PetriNetUnfolder]: For 28/73 co-relation queries the response was YES. [2022-11-20 11:40:59,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 2668 events. 382/2668 cut-off events. For 28/73 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 21591 event pairs, 155 based on Foata normal form. 7/2330 useless extension candidates. Maximal degree in co-relation 3574. Up to 517 conditions per place. [2022-11-20 11:40:59,319 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 116 selfloop transitions, 14 changer transitions 0/466 dead transitions. [2022-11-20 11:40:59,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 466 transitions, 1267 flow [2022-11-20 11:40:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:40:59,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:40:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4398 transitions. [2022-11-20 11:40:59,332 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8260706235912848 [2022-11-20 11:40:59,333 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4398 transitions. [2022-11-20 11:40:59,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4398 transitions. [2022-11-20 11:40:59,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:40:59,337 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4398 transitions. [2022-11-20 11:40:59,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 399.8181818181818) internal successors, (4398), 11 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 484.0) internal successors, (5808), 12 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,365 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 484.0) internal successors, (5808), 12 states have internal predecessors, (5808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,365 INFO L175 Difference]: Start difference. First operand has 418 places, 419 transitions, 899 flow. Second operand 11 states and 4398 transitions. [2022-11-20 11:40:59,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 466 transitions, 1267 flow [2022-11-20 11:40:59,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 466 transitions, 1263 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:40:59,377 INFO L231 Difference]: Finished difference. Result has 430 places, 426 transitions, 963 flow [2022-11-20 11:40:59,378 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=963, PETRI_PLACES=430, PETRI_TRANSITIONS=426} [2022-11-20 11:40:59,378 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -14 predicate places. [2022-11-20 11:40:59,379 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 426 transitions, 963 flow [2022-11-20 11:40:59,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 391.875) internal successors, (3135), 8 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:40:59,381 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] [2022-11-20 11:40:59,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:40:59,381 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:40:59,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:40:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1343727641, now seen corresponding path program 1 times [2022-11-20 11:40:59,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:40:59,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281691989] [2022-11-20 11:40:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:40:59,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:40:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:40:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:40:59,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:40:59,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281691989] [2022-11-20 11:40:59,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281691989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:40:59,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:40:59,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:40:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682689101] [2022-11-20 11:40:59,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:40:59,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:40:59,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:40:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:40:59,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:40:59,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 453 out of 484 [2022-11-20 11:40:59,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 426 transitions, 963 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:40:59,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:40:59,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 453 of 484 [2022-11-20 11:40:59,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:00,033 INFO L130 PetriNetUnfolder]: 161/2421 cut-off events. [2022-11-20 11:41:00,033 INFO L131 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2022-11-20 11:41:00,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2826 conditions, 2421 events. 161/2421 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 17699 event pairs, 13 based on Foata normal form. 0/2170 useless extension candidates. Maximal degree in co-relation 2759. Up to 144 conditions per place. [2022-11-20 11:41:00,065 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-20 11:41:00,065 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 427 transitions, 1006 flow [2022-11-20 11:41:00,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:00,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1382 transitions. [2022-11-20 11:41:00,070 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9517906336088154 [2022-11-20 11:41:00,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1382 transitions. [2022-11-20 11:41:00,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1382 transitions. [2022-11-20 11:41:00,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:00,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1382 transitions. [2022-11-20 11:41:00,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 460.6666666666667) internal successors, (1382), 3 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,082 INFO L175 Difference]: Start difference. First operand has 430 places, 426 transitions, 963 flow. Second operand 3 states and 1382 transitions. [2022-11-20 11:41:00,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 427 transitions, 1006 flow [2022-11-20 11:41:00,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 427 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:41:00,094 INFO L231 Difference]: Finished difference. Result has 427 places, 424 transitions, 963 flow [2022-11-20 11:41:00,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=949, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=963, PETRI_PLACES=427, PETRI_TRANSITIONS=424} [2022-11-20 11:41:00,095 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -17 predicate places. [2022-11-20 11:41:00,095 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 424 transitions, 963 flow [2022-11-20 11:41:00,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:00,097 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] [2022-11-20 11:41:00,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:41:00,098 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:00,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1595628073, now seen corresponding path program 1 times [2022-11-20 11:41:00,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:00,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341685111] [2022-11-20 11:41:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:00,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:00,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:00,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341685111] [2022-11-20 11:41:00,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341685111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:00,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:00,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:41:00,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850934341] [2022-11-20 11:41:00,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:00,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:00,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:00,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 484 [2022-11-20 11:41:00,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 424 transitions, 963 flow. Second operand has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:00,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 484 [2022-11-20 11:41:00,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:00,636 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1301] thread2EXIT-->L100-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} OutVars{thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} AuxVars[] AssignedVars[][296], [486#(= |#race~n1~0| 0), 501#(= |#race~n2~0| 0), Black: 512#true, Black: 576#true, Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 398#L100-7true, 509#(= |#race~count1~0| 0), 581#true, Black: 534#true, Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), 578#(= |#race~get2~0| 0), Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 507#true, Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-11-20 11:41:00,637 INFO L383 tUnfolder$Statistics]: this new event has 251 ancestors and is cut-off event [2022-11-20 11:41:00,637 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-20 11:41:00,637 INFO L386 tUnfolder$Statistics]: existing Event has 221 ancestors and is cut-off event [2022-11-20 11:41:00,637 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-20 11:41:00,641 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L77-5-->L77-6: Formula: true InVars {} OutVars{thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~nondet17][252], [486#(= |#race~n1~0| 0), 501#(= |#race~n2~0| 0), Black: 576#true, Black: 512#true, Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), 405#L77-6true, 191#L99-7true, 514#(= |#race~count2~0| 0), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 509#(= |#race~count1~0| 0), 581#true, Black: 534#true, 578#(= |#race~get2~0| 0), Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 507#true, Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-11-20 11:41:00,641 INFO L383 tUnfolder$Statistics]: this new event has 231 ancestors and is cut-off event [2022-11-20 11:41:00,641 INFO L386 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-11-20 11:41:00,641 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-20 11:41:00,642 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-20 11:41:00,650 INFO L130 PetriNetUnfolder]: 148/1931 cut-off events. [2022-11-20 11:41:00,650 INFO L131 PetriNetUnfolder]: For 69/87 co-relation queries the response was YES. [2022-11-20 11:41:00,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2388 conditions, 1931 events. 148/1931 cut-off events. For 69/87 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13367 event pairs, 23 based on Foata normal form. 2/1735 useless extension candidates. Maximal degree in co-relation 2322. Up to 190 conditions per place. [2022-11-20 11:41:00,675 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 20 selfloop transitions, 2 changer transitions 0/424 dead transitions. [2022-11-20 11:41:00,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 424 transitions, 1008 flow [2022-11-20 11:41:00,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2022-11-20 11:41:00,681 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9414600550964187 [2022-11-20 11:41:00,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1367 transitions. [2022-11-20 11:41:00,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1367 transitions. [2022-11-20 11:41:00,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:00,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1367 transitions. [2022-11-20 11:41:00,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,691 INFO L175 Difference]: Start difference. First operand has 427 places, 424 transitions, 963 flow. Second operand 3 states and 1367 transitions. [2022-11-20 11:41:00,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 424 transitions, 1008 flow [2022-11-20 11:41:00,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 424 transitions, 1008 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:41:00,702 INFO L231 Difference]: Finished difference. Result has 428 places, 423 transitions, 965 flow [2022-11-20 11:41:00,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=965, PETRI_PLACES=428, PETRI_TRANSITIONS=423} [2022-11-20 11:41:00,703 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -16 predicate places. [2022-11-20 11:41:00,703 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 423 transitions, 965 flow [2022-11-20 11:41:00,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.6666666666667) internal successors, (1349), 3 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:00,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:00,705 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] [2022-11-20 11:41:00,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:41:00,705 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:00,706 INFO L85 PathProgramCache]: Analyzing trace with hash -704204307, now seen corresponding path program 1 times [2022-11-20 11:41:00,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:00,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070565683] [2022-11-20 11:41:00,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:00,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:00,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:00,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070565683] [2022-11-20 11:41:00,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070565683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:00,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:00,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:41:00,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528012705] [2022-11-20 11:41:00,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:00,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:41:01,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:01,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:41:01,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:41:01,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-20 11:41:01,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 423 transitions, 965 flow. Second operand has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:01,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-20 11:41:01,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:01,710 INFO L130 PetriNetUnfolder]: 359/2267 cut-off events. [2022-11-20 11:41:01,710 INFO L131 PetriNetUnfolder]: For 238/249 co-relation queries the response was YES. [2022-11-20 11:41:01,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3491 conditions, 2267 events. 359/2267 cut-off events. For 238/249 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17657 event pairs, 165 based on Foata normal form. 10/2066 useless extension candidates. Maximal degree in co-relation 3422. Up to 587 conditions per place. [2022-11-20 11:41:01,730 INFO L137 encePairwiseOnDemand]: 469/484 looper letters, 117 selfloop transitions, 18 changer transitions 0/470 dead transitions. [2022-11-20 11:41:01,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 470 transitions, 1355 flow [2022-11-20 11:41:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:41:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:41:01,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4791 transitions. [2022-11-20 11:41:01,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.824896694214876 [2022-11-20 11:41:01,743 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4791 transitions. [2022-11-20 11:41:01,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4791 transitions. [2022-11-20 11:41:01,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:01,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4791 transitions. [2022-11-20 11:41:01,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 399.25) internal successors, (4791), 12 states have internal predecessors, (4791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 484.0) internal successors, (6292), 13 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,769 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 484.0) internal successors, (6292), 13 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,770 INFO L175 Difference]: Start difference. First operand has 428 places, 423 transitions, 965 flow. Second operand 12 states and 4791 transitions. [2022-11-20 11:41:01,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 470 transitions, 1355 flow [2022-11-20 11:41:01,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 470 transitions, 1351 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:41:01,783 INFO L231 Difference]: Finished difference. Result has 441 places, 428 transitions, 1039 flow [2022-11-20 11:41:01,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=961, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1039, PETRI_PLACES=441, PETRI_TRANSITIONS=428} [2022-11-20 11:41:01,784 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -3 predicate places. [2022-11-20 11:41:01,785 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 428 transitions, 1039 flow [2022-11-20 11:41:01,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:01,787 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] [2022-11-20 11:41:01,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:41:01,787 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:01,788 INFO L85 PathProgramCache]: Analyzing trace with hash -13537954, now seen corresponding path program 1 times [2022-11-20 11:41:01,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:01,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496895772] [2022-11-20 11:41:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:01,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:01,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:01,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496895772] [2022-11-20 11:41:01,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496895772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:01,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:01,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:41:01,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805352769] [2022-11-20 11:41:01,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:01,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:01,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:01,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 464 out of 484 [2022-11-20 11:41:01,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 428 transitions, 1039 flow. Second operand has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:01,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:01,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 464 of 484 [2022-11-20 11:41:01,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:02,341 INFO L130 PetriNetUnfolder]: 81/1681 cut-off events. [2022-11-20 11:41:02,341 INFO L131 PetriNetUnfolder]: For 93/95 co-relation queries the response was YES. [2022-11-20 11:41:02,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2050 conditions, 1681 events. 81/1681 cut-off events. For 93/95 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10061 event pairs, 3 based on Foata normal form. 0/1545 useless extension candidates. Maximal degree in co-relation 1976. Up to 30 conditions per place. [2022-11-20 11:41:02,357 INFO L137 encePairwiseOnDemand]: 481/484 looper letters, 10 selfloop transitions, 2 changer transitions 0/432 dead transitions. [2022-11-20 11:41:02,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 432 transitions, 1074 flow [2022-11-20 11:41:02,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:02,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:02,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1405 transitions. [2022-11-20 11:41:02,362 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9676308539944903 [2022-11-20 11:41:02,362 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1405 transitions. [2022-11-20 11:41:02,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1405 transitions. [2022-11-20 11:41:02,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:02,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1405 transitions. [2022-11-20 11:41:02,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:02,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:02,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:02,370 INFO L175 Difference]: Start difference. First operand has 441 places, 428 transitions, 1039 flow. Second operand 3 states and 1405 transitions. [2022-11-20 11:41:02,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 432 transitions, 1074 flow [2022-11-20 11:41:02,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 432 transitions, 1059 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:41:02,382 INFO L231 Difference]: Finished difference. Result has 438 places, 428 transitions, 1032 flow [2022-11-20 11:41:02,383 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1032, PETRI_PLACES=438, PETRI_TRANSITIONS=428} [2022-11-20 11:41:02,384 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, -6 predicate places. [2022-11-20 11:41:02,384 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 428 transitions, 1032 flow [2022-11-20 11:41:02,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.6666666666667) internal successors, (1397), 3 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:02,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:02,385 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] [2022-11-20 11:41:02,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:41:02,385 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash -503367447, now seen corresponding path program 1 times [2022-11-20 11:41:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047423070] [2022-11-20 11:41:02,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:02,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:02,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:41:02,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:02,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047423070] [2022-11-20 11:41:02,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047423070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:02,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:02,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:41:02,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824961116] [2022-11-20 11:41:02,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:02,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:41:02,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:02,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:41:02,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:41:02,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-20 11:41:02,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 428 transitions, 1032 flow. Second operand has 8 states, 8 states have (on average 393.0) internal successors, (3144), 8 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:02,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:02,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-20 11:41:02,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:04,148 INFO L130 PetriNetUnfolder]: 534/4202 cut-off events. [2022-11-20 11:41:04,148 INFO L131 PetriNetUnfolder]: For 312/316 co-relation queries the response was YES. [2022-11-20 11:41:04,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5987 conditions, 4202 events. 534/4202 cut-off events. For 312/316 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 36803 event pairs, 205 based on Foata normal form. 0/3790 useless extension candidates. Maximal degree in co-relation 5909. Up to 689 conditions per place. [2022-11-20 11:41:04,183 INFO L137 encePairwiseOnDemand]: 472/484 looper letters, 112 selfloop transitions, 14 changer transitions 0/464 dead transitions. [2022-11-20 11:41:04,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 464 transitions, 1394 flow [2022-11-20 11:41:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:41:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:41:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3607 transitions. [2022-11-20 11:41:04,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8280532598714417 [2022-11-20 11:41:04,195 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3607 transitions. [2022-11-20 11:41:04,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3607 transitions. [2022-11-20 11:41:04,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:04,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3607 transitions. [2022-11-20 11:41:04,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 400.77777777777777) internal successors, (3607), 9 states have internal predecessors, (3607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 484.0) internal successors, (4840), 10 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,220 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 484.0) internal successors, (4840), 10 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,220 INFO L175 Difference]: Start difference. First operand has 438 places, 428 transitions, 1032 flow. Second operand 9 states and 3607 transitions. [2022-11-20 11:41:04,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 464 transitions, 1394 flow [2022-11-20 11:41:04,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 464 transitions, 1390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:41:04,238 INFO L231 Difference]: Finished difference. Result has 448 places, 436 transitions, 1124 flow [2022-11-20 11:41:04,239 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1028, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1124, PETRI_PLACES=448, PETRI_TRANSITIONS=436} [2022-11-20 11:41:04,240 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2022-11-20 11:41:04,240 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 436 transitions, 1124 flow [2022-11-20 11:41:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 393.0) internal successors, (3144), 8 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:04,241 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:04,242 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] [2022-11-20 11:41:04,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:41:04,242 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:04,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash 313720129, now seen corresponding path program 1 times [2022-11-20 11:41:04,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:04,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664941028] [2022-11-20 11:41:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:04,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:05,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664941028] [2022-11-20 11:41:05,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664941028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:05,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:05,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743361990] [2022-11-20 11:41:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:05,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:05,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:05,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 484 [2022-11-20 11:41:05,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 436 transitions, 1124 flow. Second operand has 6 states, 6 states have (on average 392.8333333333333) internal successors, (2357), 6 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:05,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:05,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 484 [2022-11-20 11:41:05,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:14,740 INFO L130 PetriNetUnfolder]: 9388/30544 cut-off events. [2022-11-20 11:41:14,740 INFO L131 PetriNetUnfolder]: For 908/972 co-relation queries the response was YES. [2022-11-20 11:41:14,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49238 conditions, 30544 events. 9388/30544 cut-off events. For 908/972 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 334854 event pairs, 7878 based on Foata normal form. 12/27956 useless extension candidates. Maximal degree in co-relation 49154. Up to 13310 conditions per place. [2022-11-20 11:41:15,074 INFO L137 encePairwiseOnDemand]: 479/484 looper letters, 168 selfloop transitions, 4 changer transitions 0/531 dead transitions. [2022-11-20 11:41:15,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 531 transitions, 1658 flow [2022-11-20 11:41:15,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:41:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:41:15,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2513 transitions. [2022-11-20 11:41:15,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.865358126721763 [2022-11-20 11:41:15,082 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2513 transitions. [2022-11-20 11:41:15,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2513 transitions. [2022-11-20 11:41:15,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:15,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2513 transitions. [2022-11-20 11:41:15,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 418.8333333333333) internal successors, (2513), 6 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:15,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:15,094 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:15,095 INFO L175 Difference]: Start difference. First operand has 448 places, 436 transitions, 1124 flow. Second operand 6 states and 2513 transitions. [2022-11-20 11:41:15,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 531 transitions, 1658 flow [2022-11-20 11:41:15,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 531 transitions, 1646 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:41:15,164 INFO L231 Difference]: Finished difference. Result has 448 places, 435 transitions, 1118 flow [2022-11-20 11:41:15,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1118, PETRI_PLACES=448, PETRI_TRANSITIONS=435} [2022-11-20 11:41:15,166 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 4 predicate places. [2022-11-20 11:41:15,166 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 435 transitions, 1118 flow [2022-11-20 11:41:15,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 392.8333333333333) internal successors, (2357), 6 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:15,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:15,167 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] [2022-11-20 11:41:15,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:41:15,168 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:15,168 INFO L85 PathProgramCache]: Analyzing trace with hash -102044001, now seen corresponding path program 1 times [2022-11-20 11:41:15,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:15,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852671728] [2022-11-20 11:41:15,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:15,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:15,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:41:15,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:15,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852671728] [2022-11-20 11:41:15,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852671728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:15,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:15,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:41:15,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303339907] [2022-11-20 11:41:15,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:15,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:41:15,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:15,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:41:15,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:41:15,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 388 out of 484 [2022-11-20 11:41:15,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 435 transitions, 1118 flow. Second operand has 8 states, 8 states have (on average 393.125) internal successors, (3145), 8 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:15,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:15,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 388 of 484 [2022-11-20 11:41:15,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:16,705 INFO L130 PetriNetUnfolder]: 599/3679 cut-off events. [2022-11-20 11:41:16,705 INFO L131 PetriNetUnfolder]: For 606/705 co-relation queries the response was YES. [2022-11-20 11:41:16,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 3679 events. 599/3679 cut-off events. For 606/705 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 33423 event pairs, 273 based on Foata normal form. 19/3264 useless extension candidates. Maximal degree in co-relation 5635. Up to 895 conditions per place. [2022-11-20 11:41:16,736 INFO L137 encePairwiseOnDemand]: 471/484 looper letters, 108 selfloop transitions, 19 changer transitions 0/467 dead transitions. [2022-11-20 11:41:16,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 467 transitions, 1484 flow [2022-11-20 11:41:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:41:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:41:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3996 transitions. [2022-11-20 11:41:16,743 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8256198347107438 [2022-11-20 11:41:16,743 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3996 transitions. [2022-11-20 11:41:16,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3996 transitions. [2022-11-20 11:41:16,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:16,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3996 transitions. [2022-11-20 11:41:16,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 399.6) internal successors, (3996), 10 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:16,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 484.0) internal successors, (5324), 11 states have internal predecessors, (5324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:16,762 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 484.0) internal successors, (5324), 11 states have internal predecessors, (5324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:16,763 INFO L175 Difference]: Start difference. First operand has 448 places, 435 transitions, 1118 flow. Second operand 10 states and 3996 transitions. [2022-11-20 11:41:16,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 467 transitions, 1484 flow [2022-11-20 11:41:16,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 467 transitions, 1477 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:41:16,780 INFO L231 Difference]: Finished difference. Result has 457 places, 442 transitions, 1223 flow [2022-11-20 11:41:16,781 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1223, PETRI_PLACES=457, PETRI_TRANSITIONS=442} [2022-11-20 11:41:16,781 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 13 predicate places. [2022-11-20 11:41:16,782 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 442 transitions, 1223 flow [2022-11-20 11:41:16,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 393.125) internal successors, (3145), 8 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:16,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:16,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:16,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:41:16,784 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:16,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1447354780, now seen corresponding path program 1 times [2022-11-20 11:41:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:16,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589593723] [2022-11-20 11:41:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:41:17,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:17,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589593723] [2022-11-20 11:41:17,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589593723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:17,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:17,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74359980] [2022-11-20 11:41:17,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:17,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:17,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-20 11:41:17,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 442 transitions, 1223 flow. Second operand has 6 states, 6 states have (on average 386.6666666666667) internal successors, (2320), 6 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:17,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:17,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-20 11:41:17,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:25,258 INFO L130 PetriNetUnfolder]: 11195/28844 cut-off events. [2022-11-20 11:41:25,258 INFO L131 PetriNetUnfolder]: For 2720/2960 co-relation queries the response was YES. [2022-11-20 11:41:25,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51037 conditions, 28844 events. 11195/28844 cut-off events. For 2720/2960 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 280745 event pairs, 2492 based on Foata normal form. 6/26766 useless extension candidates. Maximal degree in co-relation 50950. Up to 11076 conditions per place. [2022-11-20 11:41:25,564 INFO L137 encePairwiseOnDemand]: 477/484 looper letters, 218 selfloop transitions, 5 changer transitions 0/575 dead transitions. [2022-11-20 11:41:25,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 575 transitions, 1946 flow [2022-11-20 11:41:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:41:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:41:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2518 transitions. [2022-11-20 11:41:25,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670798898071626 [2022-11-20 11:41:25,570 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2518 transitions. [2022-11-20 11:41:25,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2518 transitions. [2022-11-20 11:41:25,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:25,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2518 transitions. [2022-11-20 11:41:25,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.6666666666667) internal successors, (2518), 6 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:25,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:25,582 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:25,582 INFO L175 Difference]: Start difference. First operand has 457 places, 442 transitions, 1223 flow. Second operand 6 states and 2518 transitions. [2022-11-20 11:41:25,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 575 transitions, 1946 flow [2022-11-20 11:41:25,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 575 transitions, 1934 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:41:25,615 INFO L231 Difference]: Finished difference. Result has 456 places, 440 transitions, 1217 flow [2022-11-20 11:41:25,616 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1217, PETRI_PLACES=456, PETRI_TRANSITIONS=440} [2022-11-20 11:41:25,617 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 12 predicate places. [2022-11-20 11:41:25,617 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 440 transitions, 1217 flow [2022-11-20 11:41:25,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.6666666666667) internal successors, (2320), 6 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:25,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:25,618 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] [2022-11-20 11:41:25,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:41:25,619 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:25,619 INFO L85 PathProgramCache]: Analyzing trace with hash 654674906, now seen corresponding path program 1 times [2022-11-20 11:41:25,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:25,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774864245] [2022-11-20 11:41:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:25,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:26,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:41:26,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:26,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774864245] [2022-11-20 11:41:26,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774864245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:26,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:26,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:26,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117953972] [2022-11-20 11:41:26,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:26,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:26,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:26,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:26,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:26,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-20 11:41:26,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 440 transitions, 1217 flow. Second operand has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:26,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:26,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-20 11:41:26,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:33,693 INFO L130 PetriNetUnfolder]: 10554/27953 cut-off events. [2022-11-20 11:41:33,694 INFO L131 PetriNetUnfolder]: For 3606/3834 co-relation queries the response was YES. [2022-11-20 11:41:34,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49741 conditions, 27953 events. 10554/27953 cut-off events. For 3606/3834 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 275304 event pairs, 2166 based on Foata normal form. 27/26298 useless extension candidates. Maximal degree in co-relation 49656. Up to 11053 conditions per place. [2022-11-20 11:41:34,219 INFO L137 encePairwiseOnDemand]: 477/484 looper letters, 222 selfloop transitions, 5 changer transitions 0/579 dead transitions. [2022-11-20 11:41:34,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 579 transitions, 1994 flow [2022-11-20 11:41:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:41:34,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:41:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2522 transitions. [2022-11-20 11:41:34,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8684573002754821 [2022-11-20 11:41:34,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2522 transitions. [2022-11-20 11:41:34,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2522 transitions. [2022-11-20 11:41:34,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:34,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2522 transitions. [2022-11-20 11:41:34,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.3333333333333) internal successors, (2522), 6 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,243 INFO L175 Difference]: Start difference. First operand has 456 places, 440 transitions, 1217 flow. Second operand 6 states and 2522 transitions. [2022-11-20 11:41:34,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 579 transitions, 1994 flow [2022-11-20 11:41:34,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 579 transitions, 1952 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:41:34,286 INFO L231 Difference]: Finished difference. Result has 454 places, 438 transitions, 1213 flow [2022-11-20 11:41:34,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1213, PETRI_PLACES=454, PETRI_TRANSITIONS=438} [2022-11-20 11:41:34,287 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 10 predicate places. [2022-11-20 11:41:34,288 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 438 transitions, 1213 flow [2022-11-20 11:41:34,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.8333333333333) internal successors, (2321), 6 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,289 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:34,289 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] [2022-11-20 11:41:34,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-20 11:41:34,290 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:34,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash -109975139, now seen corresponding path program 1 times [2022-11-20 11:41:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:34,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798372653] [2022-11-20 11:41:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:34,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:34,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798372653] [2022-11-20 11:41:34,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798372653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:34,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:34,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:41:34,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851739131] [2022-11-20 11:41:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:34,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:34,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 484 [2022-11-20 11:41:34,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 438 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:34,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:34,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 484 [2022-11-20 11:41:34,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:35,260 INFO L130 PetriNetUnfolder]: 188/3484 cut-off events. [2022-11-20 11:41:35,260 INFO L131 PetriNetUnfolder]: For 547/559 co-relation queries the response was YES. [2022-11-20 11:41:35,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4565 conditions, 3484 events. 188/3484 cut-off events. For 547/559 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 27745 event pairs, 35 based on Foata normal form. 2/3220 useless extension candidates. Maximal degree in co-relation 4477. Up to 158 conditions per place. [2022-11-20 11:41:35,292 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 17 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-20 11:41:35,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 443 transitions, 1264 flow [2022-11-20 11:41:35,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-20 11:41:35,295 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-20 11:41:35,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-20 11:41:35,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-20 11:41:35,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:35,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-20 11:41:35,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,301 INFO L175 Difference]: Start difference. First operand has 454 places, 438 transitions, 1213 flow. Second operand 3 states and 1395 transitions. [2022-11-20 11:41:35,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 443 transitions, 1264 flow [2022-11-20 11:41:35,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 443 transitions, 1254 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:41:35,320 INFO L231 Difference]: Finished difference. Result has 453 places, 440 transitions, 1223 flow [2022-11-20 11:41:35,321 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1203, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1223, PETRI_PLACES=453, PETRI_TRANSITIONS=440} [2022-11-20 11:41:35,322 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 9 predicate places. [2022-11-20 11:41:35,322 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 440 transitions, 1223 flow [2022-11-20 11:41:35,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:35,324 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] [2022-11-20 11:41:35,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-20 11:41:35,324 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:35,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:35,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1006570525, now seen corresponding path program 2 times [2022-11-20 11:41:35,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:35,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166404076] [2022-11-20 11:41:35,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:35,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:35,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166404076] [2022-11-20 11:41:35,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166404076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:35,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:35,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:41:35,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033498183] [2022-11-20 11:41:35,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:35,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:35,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:35,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:35,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 458 out of 484 [2022-11-20 11:41:35,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 440 transitions, 1223 flow. Second operand has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:35,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 458 of 484 [2022-11-20 11:41:35,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:36,242 INFO L130 PetriNetUnfolder]: 155/2913 cut-off events. [2022-11-20 11:41:36,242 INFO L131 PetriNetUnfolder]: For 698/714 co-relation queries the response was YES. [2022-11-20 11:41:36,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4070 conditions, 2913 events. 155/2913 cut-off events. For 698/714 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 21891 event pairs, 30 based on Foata normal form. 14/2782 useless extension candidates. Maximal degree in co-relation 3981. Up to 117 conditions per place. [2022-11-20 11:41:36,261 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 19 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2022-11-20 11:41:36,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 445 transitions, 1282 flow [2022-11-20 11:41:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:36,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:36,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1395 transitions. [2022-11-20 11:41:36,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9607438016528925 [2022-11-20 11:41:36,264 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1395 transitions. [2022-11-20 11:41:36,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1395 transitions. [2022-11-20 11:41:36,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:36,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1395 transitions. [2022-11-20 11:41:36,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:36,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:36,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:36,268 INFO L175 Difference]: Start difference. First operand has 453 places, 440 transitions, 1223 flow. Second operand 3 states and 1395 transitions. [2022-11-20 11:41:36,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 445 transitions, 1282 flow [2022-11-20 11:41:36,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 445 transitions, 1280 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:41:36,285 INFO L231 Difference]: Finished difference. Result has 456 places, 442 transitions, 1245 flow [2022-11-20 11:41:36,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1245, PETRI_PLACES=456, PETRI_TRANSITIONS=442} [2022-11-20 11:41:36,287 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 12 predicate places. [2022-11-20 11:41:36,287 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 442 transitions, 1245 flow [2022-11-20 11:41:36,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 461.6666666666667) internal successors, (1385), 3 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:36,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:36,288 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] [2022-11-20 11:41:36,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-20 11:41:36,289 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:36,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:36,289 INFO L85 PathProgramCache]: Analyzing trace with hash 673208165, now seen corresponding path program 1 times [2022-11-20 11:41:36,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:36,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253213198] [2022-11-20 11:41:36,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:36,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:36,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:36,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:36,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253213198] [2022-11-20 11:41:36,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253213198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:36,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:36,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:41:36,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571739259] [2022-11-20 11:41:36,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:36,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:36,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:36,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:36,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:41:36,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 442 transitions, 1245 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:36,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:36,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:41:36,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:37,011 INFO L130 PetriNetUnfolder]: 136/2712 cut-off events. [2022-11-20 11:41:37,012 INFO L131 PetriNetUnfolder]: For 577/610 co-relation queries the response was YES. [2022-11-20 11:41:37,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3846 conditions, 2712 events. 136/2712 cut-off events. For 577/610 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 19905 event pairs, 23 based on Foata normal form. 0/2600 useless extension candidates. Maximal degree in co-relation 3760. Up to 109 conditions per place. [2022-11-20 11:41:37,038 INFO L137 encePairwiseOnDemand]: 480/484 looper letters, 16 selfloop transitions, 1 changer transitions 0/439 dead transitions. [2022-11-20 11:41:37,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 439 transitions, 1273 flow [2022-11-20 11:41:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2022-11-20 11:41:37,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9435261707988981 [2022-11-20 11:41:37,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1370 transitions. [2022-11-20 11:41:37,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1370 transitions. [2022-11-20 11:41:37,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:37,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1370 transitions. [2022-11-20 11:41:37,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.6666666666667) internal successors, (1370), 3 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,048 INFO L175 Difference]: Start difference. First operand has 456 places, 442 transitions, 1245 flow. Second operand 3 states and 1370 transitions. [2022-11-20 11:41:37,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 439 transitions, 1273 flow [2022-11-20 11:41:37,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 439 transitions, 1267 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-20 11:41:37,065 INFO L231 Difference]: Finished difference. Result has 454 places, 439 transitions, 1235 flow [2022-11-20 11:41:37,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1233, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1235, PETRI_PLACES=454, PETRI_TRANSITIONS=439} [2022-11-20 11:41:37,067 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 10 predicate places. [2022-11-20 11:41:37,067 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 439 transitions, 1235 flow [2022-11-20 11:41:37,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:37,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:37,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-20 11:41:37,068 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:37,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:37,069 INFO L85 PathProgramCache]: Analyzing trace with hash -664097398, now seen corresponding path program 1 times [2022-11-20 11:41:37,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:37,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744436754] [2022-11-20 11:41:37,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:41:37,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:37,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744436754] [2022-11-20 11:41:37,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744436754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:37,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:37,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295439287] [2022-11-20 11:41:37,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:37,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:37,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:37,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:37,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:37,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-20 11:41:37,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 439 transitions, 1235 flow. Second operand has 6 states, 6 states have (on average 387.6666666666667) internal successors, (2326), 6 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:37,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:37,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-20 11:41:37,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:45,480 INFO L130 PetriNetUnfolder]: 10179/28778 cut-off events. [2022-11-20 11:41:45,480 INFO L131 PetriNetUnfolder]: For 3282/3516 co-relation queries the response was YES. [2022-11-20 11:41:45,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50094 conditions, 28778 events. 10179/28778 cut-off events. For 3282/3516 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 292453 event pairs, 4133 based on Foata normal form. 6/27490 useless extension candidates. Maximal degree in co-relation 50007. Up to 7401 conditions per place. [2022-11-20 11:41:45,822 INFO L137 encePairwiseOnDemand]: 477/484 looper letters, 206 selfloop transitions, 5 changer transitions 0/564 dead transitions. [2022-11-20 11:41:45,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 564 transitions, 1918 flow [2022-11-20 11:41:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:41:45,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:41:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2506 transitions. [2022-11-20 11:41:45,826 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8629476584022039 [2022-11-20 11:41:45,827 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2506 transitions. [2022-11-20 11:41:45,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2506 transitions. [2022-11-20 11:41:45,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:45,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2506 transitions. [2022-11-20 11:41:45,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 417.6666666666667) internal successors, (2506), 6 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:45,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:45,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 484.0) internal successors, (3388), 7 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:45,838 INFO L175 Difference]: Start difference. First operand has 454 places, 439 transitions, 1235 flow. Second operand 6 states and 2506 transitions. [2022-11-20 11:41:45,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 564 transitions, 1918 flow [2022-11-20 11:41:45,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 564 transitions, 1917 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:41:45,873 INFO L231 Difference]: Finished difference. Result has 456 places, 437 transitions, 1240 flow [2022-11-20 11:41:45,873 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1240, PETRI_PLACES=456, PETRI_TRANSITIONS=437} [2022-11-20 11:41:45,874 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 12 predicate places. [2022-11-20 11:41:45,874 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 437 transitions, 1240 flow [2022-11-20 11:41:45,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 387.6666666666667) internal successors, (2326), 6 states have internal predecessors, (2326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:45,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:45,875 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] [2022-11-20 11:41:45,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-20 11:41:45,875 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:45,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash -928663569, now seen corresponding path program 1 times [2022-11-20 11:41:45,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:45,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219199898] [2022-11-20 11:41:45,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:45,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:45,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:45,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219199898] [2022-11-20 11:41:45,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219199898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:45,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:45,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:41:45,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435217030] [2022-11-20 11:41:45,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:45,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:45,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:45,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:45,959 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 484 [2022-11-20 11:41:45,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 437 transitions, 1240 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:45,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:45,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 484 [2022-11-20 11:41:45,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:46,504 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1301] thread2EXIT-->L100-7: Formula: (and (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} OutVars{thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|} AuxVars[] AssignedVars[][289], [486#(= |#race~n1~0| 0), Black: 576#true, Black: 512#true, 690#(= ~count2~0 ~count1~0), 698#true, 514#(= |#race~count2~0| 0), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 585#true, 398#L100-7true, Black: 658#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 534#true, Black: 656#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 660#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (not |thread2Thread1of1ForFork0_#t~short11|)), 641#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 578#(= |#race~get2~0| 0), Black: 590#(<= ~n1~0 0), Black: 602#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (not |thread2Thread1of1ForFork0_#t~short11|)), Black: 591#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), 501#(= |#race~n2~0| 0), 652#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), Black: 684#(not (= ~count2~0 ~count1~0)), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 688#true, 705#true, Black: 630#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread1Thread1of1ForFork1_#t~short2|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 509#(= |#race~count1~0| 0), Black: 626#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 628#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 624#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 507#true]) [2022-11-20 11:41:46,504 INFO L383 tUnfolder$Statistics]: this new event has 252 ancestors and is cut-off event [2022-11-20 11:41:46,504 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-20 11:41:46,504 INFO L386 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-11-20 11:41:46,504 INFO L386 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-11-20 11:41:46,516 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1238] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet17_3| |v_#race~res2~0_7|) InVars {thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet17=|v_thread2Thread1of1ForFork0_#t~nondet17_3|, #race~res2~0=|v_#race~res2~0_7|} AuxVars[] AssignedVars[#race~res2~0][253], [486#(= |#race~n1~0| 0), Black: 512#true, 690#(= ~count2~0 ~count1~0), Black: 576#true, 698#true, 514#(= |#race~count2~0| 0), Black: 530#(not |thread1Thread1of1ForFork1_#t~short2|), 585#true, Black: 658#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 534#true, Black: 656#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 660#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (not |thread2Thread1of1ForFork0_#t~short11|)), 578#(= |#race~get2~0| 0), Black: 590#(<= ~n1~0 0), Black: 602#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (not |thread2Thread1of1ForFork0_#t~short11|)), Black: 591#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), 501#(= |#race~n2~0| 0), Black: 545#(not |thread2Thread1of1ForFork0_#t~short11|), 652#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 191#L99-7true, Black: 684#(not (= ~count2~0 ~count1~0)), 536#(= |#race~get1~0| 0), 526#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 688#true, 705#true, Black: 630#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread1Thread1of1ForFork1_#t~short2|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 509#(= |#race~count1~0| 0), Black: 626#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 628#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 624#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 570#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), 176#L77-7true, Black: 558#(<= ~n1~0 0), Black: 559#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 507#true, Black: 564#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|))]) [2022-11-20 11:41:46,516 INFO L383 tUnfolder$Statistics]: this new event has 255 ancestors and is cut-off event [2022-11-20 11:41:46,517 INFO L386 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-11-20 11:41:46,517 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-20 11:41:46,517 INFO L386 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-11-20 11:41:46,537 INFO L130 PetriNetUnfolder]: 158/2647 cut-off events. [2022-11-20 11:41:46,538 INFO L131 PetriNetUnfolder]: For 468/499 co-relation queries the response was YES. [2022-11-20 11:41:46,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3708 conditions, 2647 events. 158/2647 cut-off events. For 468/499 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 19642 event pairs, 26 based on Foata normal form. 10/2544 useless extension candidates. Maximal degree in co-relation 3622. Up to 196 conditions per place. [2022-11-20 11:41:46,560 INFO L137 encePairwiseOnDemand]: 478/484 looper letters, 10 selfloop transitions, 0 changer transitions 76/436 dead transitions. [2022-11-20 11:41:46,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 436 transitions, 1274 flow [2022-11-20 11:41:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2022-11-20 11:41:46,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9442148760330579 [2022-11-20 11:41:46,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2022-11-20 11:41:46,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2022-11-20 11:41:46,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:46,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2022-11-20 11:41:46,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:46,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:46,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:46,569 INFO L175 Difference]: Start difference. First operand has 456 places, 437 transitions, 1240 flow. Second operand 3 states and 1371 transitions. [2022-11-20 11:41:46,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 436 transitions, 1274 flow [2022-11-20 11:41:46,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 436 transitions, 1264 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:41:46,583 INFO L231 Difference]: Finished difference. Result has 450 places, 360 transitions, 902 flow [2022-11-20 11:41:46,584 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=484, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=902, PETRI_PLACES=450, PETRI_TRANSITIONS=360} [2022-11-20 11:41:46,585 INFO L288 CegarLoopForPetriNet]: 444 programPoint places, 6 predicate places. [2022-11-20 11:41:46,585 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 360 transitions, 902 flow [2022-11-20 11:41:46,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:46,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:46,586 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] [2022-11-20 11:41:46,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-20 11:41:46,587 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-20 11:41:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1531728768, now seen corresponding path program 1 times [2022-11-20 11:41:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:46,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64999520] [2022-11-20 11:41:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:41:47,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:47,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64999520] [2022-11-20 11:41:47,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64999520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:47,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:47,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:47,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787250789] [2022-11-20 11:41:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:47,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:47,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:47,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:47,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:47,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 484 [2022-11-20 11:41:47,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 360 transitions, 902 flow. Second operand has 6 states, 6 states have (on average 387.8333333333333) internal successors, (2327), 6 states have internal predecessors, (2327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:47,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:47,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 484 [2022-11-20 11:41:47,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand