./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/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_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/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_64076bcc-97f5-47e2-b442-6f13c1a121e7/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 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- 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 12:28:52,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:28:52,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:28:52,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:28:52,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:28:52,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:28:52,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:28:52,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:28:52,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:28:52,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:28:52,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:28:52,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:28:52,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:28:52,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:28:52,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:28:52,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:28:52,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:28:52,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:28:52,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:28:52,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:28:52,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:28:52,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:28:52,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:28:52,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:28:52,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:28:52,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:28:52,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:28:52,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:28:52,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:28:52,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:28:52,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:28:52,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:28:52,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:28:52,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:28:52,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:28:52,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:28:52,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:28:52,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:28:52,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:28:53,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:28:53,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:28:53,007 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:28:53,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:28:53,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:28:53,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:28:53,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:28:53,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:28:53,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:28:53,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:28:53,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:28:53,057 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:28:53,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:28:53,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:28:53,059 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:28:53,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:28:53,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:28:53,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:28:53,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:28:53,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:28:53,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:28:53,060 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:28:53,061 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:28:53,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:28:53,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:28:53,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:28:53,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:28:53,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:28:53,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:28:53,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:28:53,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:28:53,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:28:53,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:28:53,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:28:53,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:28:53,064 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:28:53,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:28:53,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:28:53,065 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_64076bcc-97f5-47e2-b442-6f13c1a121e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2022-11-20 12:28:53,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:28:53,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:28:53,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:28:53,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:28:53,415 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:28:53,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-20 12:28:56,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:28:56,929 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:28:56,930 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2022-11-20 12:28:56,948 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/data/962eaac7b/3f3568602335454b964f0adbb3d5fadc/FLAG9c3a41f06 [2022-11-20 12:28:56,964 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/data/962eaac7b/3f3568602335454b964f0adbb3d5fadc [2022-11-20 12:28:56,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:28:56,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:28:56,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:28:56,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:28:56,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:28:56,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:56" (1/1) ... [2022-11-20 12:28:56,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7012694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:56, skipping insertion in model container [2022-11-20 12:28:56,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:28:56" (1/1) ... [2022-11-20 12:28:56,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:28:57,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:28:57,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:28:57,836 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:28:57,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:28:58,045 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:28:58,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58 WrapperNode [2022-11-20 12:28:58,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:28:58,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:28:58,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:28:58,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:28:58,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,143 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 328 [2022-11-20 12:28:58,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:28:58,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:28:58,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:28:58,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:28:58,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,210 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:28:58,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:28:58,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:28:58,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:28:58,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (1/1) ... [2022-11-20 12:28:58,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:28:58,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:28:58,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:28:58,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:28:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:28:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:28:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:28:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:28:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:28:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:28:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:28:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:28:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:28:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 12:28:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 12:28:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:28:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:28:58,304 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 12:28:58,536 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:28:58,539 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:28:59,537 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:28:59,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:28:59,554 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:28:59,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:28:59 BoogieIcfgContainer [2022-11-20 12:28:59,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:28:59,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:28:59,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:28:59,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:28:59,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:28:56" (1/3) ... [2022-11-20 12:28:59,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312d81ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:28:59, skipping insertion in model container [2022-11-20 12:28:59,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:28:58" (2/3) ... [2022-11-20 12:28:59,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312d81ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:28:59, skipping insertion in model container [2022-11-20 12:28:59,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:28:59" (3/3) ... [2022-11-20 12:28:59,575 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2022-11-20 12:28:59,587 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:28:59,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:28:59,600 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-20 12:28:59,600 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:28:59,740 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 12:28:59,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 399 transitions, 803 flow [2022-11-20 12:29:00,081 INFO L130 PetriNetUnfolder]: 5/398 cut-off events. [2022-11-20 12:29:00,081 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:29:00,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 398 events. 5/398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 272. Up to 2 conditions per place. [2022-11-20 12:29:00,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 399 transitions, 803 flow [2022-11-20 12:29:00,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 397 places, 398 transitions, 799 flow [2022-11-20 12:29:00,106 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:29:00,117 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;@540acb33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:29:00,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-20 12:29:00,132 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-20 12:29:00,132 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:29:00,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:00,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:00,134 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash 521919878, now seen corresponding path program 1 times [2022-11-20 12:29:00,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:00,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586211023] [2022-11-20 12:29:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:01,023 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 12:29:01,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586211023] [2022-11-20 12:29:01,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586211023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:01,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:01,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625323927] [2022-11-20 12:29:01,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:01,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:01,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:01,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 399 [2022-11-20 12:29:01,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 398 transitions, 799 flow. Second operand has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 12:29:01,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:01,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 399 [2022-11-20 12:29:01,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:02,675 INFO L130 PetriNetUnfolder]: 649/2229 cut-off events. [2022-11-20 12:29:02,676 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:29:02,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3717 conditions, 2229 events. 649/2229 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11805 event pairs, 648 based on Foata normal form. 19/1986 useless extension candidates. Maximal degree in co-relation 3312. Up to 1469 conditions per place. [2022-11-20 12:29:02,692 INFO L137 encePairwiseOnDemand]: 377/399 looper letters, 172 selfloop transitions, 15 changer transitions 2/391 dead transitions. [2022-11-20 12:29:02,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 391 transitions, 1159 flow [2022-11-20 12:29:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:02,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2022-11-20 12:29:02,714 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5948203842940685 [2022-11-20 12:29:02,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1424 transitions. [2022-11-20 12:29:02,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1424 transitions. [2022-11-20 12:29:02,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:02,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1424 transitions. [2022-11-20 12:29:02,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 12:29:02,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:02,745 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:02,748 INFO L175 Difference]: Start difference. First operand has 397 places, 398 transitions, 799 flow. Second operand 6 states and 1424 transitions. [2022-11-20 12:29:02,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 391 transitions, 1159 flow [2022-11-20 12:29:02,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 391 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:29:02,828 INFO L231 Difference]: Finished difference. Result has 398 places, 389 transitions, 810 flow [2022-11-20 12:29:02,831 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=376, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=810, PETRI_PLACES=398, PETRI_TRANSITIONS=389} [2022-11-20 12:29:02,835 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 1 predicate places. [2022-11-20 12:29:02,835 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 389 transitions, 810 flow [2022-11-20 12:29:02,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states 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 12:29:02,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:02,837 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] [2022-11-20 12:29:02,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:29:02,838 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1419086595, now seen corresponding path program 1 times [2022-11-20 12:29:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:02,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15875207] [2022-11-20 12:29:02,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:02,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:03,315 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 12:29:03,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:03,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15875207] [2022-11-20 12:29:03,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15875207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:03,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:03,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447846403] [2022-11-20 12:29:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:03,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:03,331 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 399 [2022-11-20 12:29:03,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 389 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 12:29:03,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:03,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 399 [2022-11-20 12:29:03,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:04,411 INFO L130 PetriNetUnfolder]: 649/2224 cut-off events. [2022-11-20 12:29:04,412 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:29:04,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2224 events. 649/2224 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11735 event pairs, 648 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 3471. Up to 1466 conditions per place. [2022-11-20 12:29:04,425 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 169 selfloop transitions, 15 changer transitions 0/386 dead transitions. [2022-11-20 12:29:04,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 386 transitions, 1172 flow [2022-11-20 12:29:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:04,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1417 transitions. [2022-11-20 12:29:04,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5918964076858814 [2022-11-20 12:29:04,431 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1417 transitions. [2022-11-20 12:29:04,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1417 transitions. [2022-11-20 12:29:04,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:04,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1417 transitions. [2022-11-20 12:29:04,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.16666666666666) internal successors, (1417), 6 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:04,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:04,445 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:04,446 INFO L175 Difference]: Start difference. First operand has 398 places, 389 transitions, 810 flow. Second operand 6 states and 1417 transitions. [2022-11-20 12:29:04,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 386 transitions, 1172 flow [2022-11-20 12:29:04,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 386 transitions, 1142 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:04,457 INFO L231 Difference]: Finished difference. Result has 393 places, 386 transitions, 804 flow [2022-11-20 12:29:04,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=393, PETRI_TRANSITIONS=386} [2022-11-20 12:29:04,459 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -4 predicate places. [2022-11-20 12:29:04,459 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 386 transitions, 804 flow [2022-11-20 12:29:04,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states 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 12:29:04,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:04,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:29:04,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:29:04,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 697026111, now seen corresponding path program 1 times [2022-11-20 12:29:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:04,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518990978] [2022-11-20 12:29:04,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:04,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:04,984 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 12:29:04,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:04,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518990978] [2022-11-20 12:29:04,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518990978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:04,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:04,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:04,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292374956] [2022-11-20 12:29:04,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:04,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:04,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:04,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 399 [2022-11-20 12:29:05,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 386 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states 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 12:29:05,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:05,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 399 [2022-11-20 12:29:05,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:05,906 INFO L130 PetriNetUnfolder]: 704/2342 cut-off events. [2022-11-20 12:29:05,906 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:29:05,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 2342 events. 704/2342 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12444 event pairs, 703 based on Foata normal form. 0/2076 useless extension candidates. Maximal degree in co-relation 3687. Up to 1581 conditions per place. [2022-11-20 12:29:05,919 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 174 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2022-11-20 12:29:05,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 385 transitions, 1160 flow [2022-11-20 12:29:05,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:05,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1434 transitions. [2022-11-20 12:29:05,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5989974937343359 [2022-11-20 12:29:05,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1434 transitions. [2022-11-20 12:29:05,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1434 transitions. [2022-11-20 12:29:05,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:05,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1434 transitions. [2022-11-20 12:29:05,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states 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 12:29:05,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:05,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:05,936 INFO L175 Difference]: Start difference. First operand has 393 places, 386 transitions, 804 flow. Second operand 6 states and 1434 transitions. [2022-11-20 12:29:05,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 385 transitions, 1160 flow [2022-11-20 12:29:05,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 385 transitions, 1130 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:05,945 INFO L231 Difference]: Finished difference. Result has 392 places, 385 transitions, 782 flow [2022-11-20 12:29:05,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=782, PETRI_PLACES=392, PETRI_TRANSITIONS=385} [2022-11-20 12:29:05,947 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -5 predicate places. [2022-11-20 12:29:05,947 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 385 transitions, 782 flow [2022-11-20 12:29:05,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states 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 12:29:05,949 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:05,949 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] [2022-11-20 12:29:05,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:29:05,949 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:05,950 INFO L85 PathProgramCache]: Analyzing trace with hash 931409873, now seen corresponding path program 1 times [2022-11-20 12:29:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:05,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034552160] [2022-11-20 12:29:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:06,069 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 12:29:06,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:06,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034552160] [2022-11-20 12:29:06,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034552160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:06,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:06,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:29:06,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979686404] [2022-11-20 12:29:06,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:06,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:29:06,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:29:06,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:29:06,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 399 [2022-11-20 12:29:06,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 385 transitions, 782 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states 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 12:29:06,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:06,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 399 [2022-11-20 12:29:06,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:06,221 INFO L130 PetriNetUnfolder]: 1/494 cut-off events. [2022-11-20 12:29:06,222 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:29:06,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 494 events. 1/494 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 338 event pairs, 0 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-20 12:29:06,224 INFO L137 encePairwiseOnDemand]: 396/399 looper letters, 36 selfloop transitions, 2 changer transitions 0/402 dead transitions. [2022-11-20 12:29:06,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 402 transitions, 900 flow [2022-11-20 12:29:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:29:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:29:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-20 12:29:06,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9674185463659147 [2022-11-20 12:29:06,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-20 12:29:06,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-20 12:29:06,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:06,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-20 12:29:06,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states 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 12:29:06,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 399.0) internal successors, (1596), 4 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states 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 12:29:06,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 399.0) internal successors, (1596), 4 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states 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 12:29:06,290 INFO L175 Difference]: Start difference. First operand has 392 places, 385 transitions, 782 flow. Second operand 3 states and 1158 transitions. [2022-11-20 12:29:06,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 402 transitions, 900 flow [2022-11-20 12:29:06,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 402 transitions, 882 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:06,299 INFO L231 Difference]: Finished difference. Result has 390 places, 386 transitions, 784 flow [2022-11-20 12:29:06,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=390, PETRI_TRANSITIONS=386} [2022-11-20 12:29:06,302 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-20 12:29:06,302 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 386 transitions, 784 flow [2022-11-20 12:29:06,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states 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 12:29:06,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:06,306 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] [2022-11-20 12:29:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:29:06,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:06,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:06,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1590104516, now seen corresponding path program 1 times [2022-11-20 12:29:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:06,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131674340] [2022-11-20 12:29:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:07,084 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 12:29:07,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:07,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131674340] [2022-11-20 12:29:07,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131674340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:07,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:07,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:07,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640817149] [2022-11-20 12:29:07,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:07,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:07,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:07,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:07,093 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 399 [2022-11-20 12:29:07,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 386 transitions, 784 flow. Second operand has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states 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 12:29:07,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:07,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 399 [2022-11-20 12:29:07,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:08,643 INFO L130 PetriNetUnfolder]: 704/2449 cut-off events. [2022-11-20 12:29:08,643 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:29:08,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4096 conditions, 2449 events. 704/2449 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12448 event pairs, 703 based on Foata normal form. 0/2182 useless extension candidates. Maximal degree in co-relation 3908. Up to 1615 conditions per place. [2022-11-20 12:29:08,657 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 172 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2022-11-20 12:29:08,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 385 transitions, 1136 flow [2022-11-20 12:29:08,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:08,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1443 transitions. [2022-11-20 12:29:08,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6027568922305765 [2022-11-20 12:29:08,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1443 transitions. [2022-11-20 12:29:08,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1443 transitions. [2022-11-20 12:29:08,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:08,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1443 transitions. [2022-11-20 12:29:08,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.5) internal successors, (1443), 6 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states 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 12:29:08,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:08,673 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:08,674 INFO L175 Difference]: Start difference. First operand has 390 places, 386 transitions, 784 flow. Second operand 6 states and 1443 transitions. [2022-11-20 12:29:08,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 385 transitions, 1136 flow [2022-11-20 12:29:08,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 385 transitions, 1134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:29:08,683 INFO L231 Difference]: Finished difference. Result has 393 places, 385 transitions, 790 flow [2022-11-20 12:29:08,684 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=790, PETRI_PLACES=393, PETRI_TRANSITIONS=385} [2022-11-20 12:29:08,688 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -4 predicate places. [2022-11-20 12:29:08,688 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 385 transitions, 790 flow [2022-11-20 12:29:08,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states 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 12:29:08,689 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:08,690 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] [2022-11-20 12:29:08,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:29:08,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:08,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:08,692 INFO L85 PathProgramCache]: Analyzing trace with hash -4084474, now seen corresponding path program 1 times [2022-11-20 12:29:08,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:08,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453379546] [2022-11-20 12:29:08,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:08,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:09,290 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 12:29:09,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:09,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453379546] [2022-11-20 12:29:09,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453379546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:09,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:09,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377902227] [2022-11-20 12:29:09,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:09,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:09,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:09,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:09,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 399 [2022-11-20 12:29:09,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 385 transitions, 790 flow. Second operand has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states 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 12:29:09,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:09,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 399 [2022-11-20 12:29:09,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:10,407 INFO L130 PetriNetUnfolder]: 649/2326 cut-off events. [2022-11-20 12:29:10,407 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:29:10,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3863 conditions, 2326 events. 649/2326 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11719 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3638. Up to 1494 conditions per place. [2022-11-20 12:29:10,420 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 155 selfloop transitions, 15 changer transitions 0/382 dead transitions. [2022-11-20 12:29:10,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 382 transitions, 1124 flow [2022-11-20 12:29:10,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1457 transitions. [2022-11-20 12:29:10,425 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6086048454469507 [2022-11-20 12:29:10,426 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1457 transitions. [2022-11-20 12:29:10,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1457 transitions. [2022-11-20 12:29:10,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:10,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1457 transitions. [2022-11-20 12:29:10,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states 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 12:29:10,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:10,440 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:10,440 INFO L175 Difference]: Start difference. First operand has 393 places, 385 transitions, 790 flow. Second operand 6 states and 1457 transitions. [2022-11-20 12:29:10,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 382 transitions, 1124 flow [2022-11-20 12:29:10,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 382 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:10,448 INFO L231 Difference]: Finished difference. Result has 390 places, 382 transitions, 804 flow [2022-11-20 12:29:10,449 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=390, PETRI_TRANSITIONS=382} [2022-11-20 12:29:10,452 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-20 12:29:10,452 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 382 transitions, 804 flow [2022-11-20 12:29:10,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states 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 12:29:10,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:10,453 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] [2022-11-20 12:29:10,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:29:10,454 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2141407888, now seen corresponding path program 1 times [2022-11-20 12:29:10,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:10,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346504152] [2022-11-20 12:29:10,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:10,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:11,144 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 12:29:11,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:11,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346504152] [2022-11-20 12:29:11,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346504152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:11,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:11,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:11,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378309563] [2022-11-20 12:29:11,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:11,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:11,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:11,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:11,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 399 [2022-11-20 12:29:11,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 382 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:11,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:11,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 399 [2022-11-20 12:29:11,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:12,423 INFO L130 PetriNetUnfolder]: 649/2322 cut-off events. [2022-11-20 12:29:12,423 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:29:12,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 2322 events. 649/2322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11743 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3522. Up to 1502 conditions per place. [2022-11-20 12:29:12,440 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 158 selfloop transitions, 15 changer transitions 0/379 dead transitions. [2022-11-20 12:29:12,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 379 transitions, 1144 flow [2022-11-20 12:29:12,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1424 transitions. [2022-11-20 12:29:12,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5948203842940685 [2022-11-20 12:29:12,448 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1424 transitions. [2022-11-20 12:29:12,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1424 transitions. [2022-11-20 12:29:12,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:12,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1424 transitions. [2022-11-20 12:29:12,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.33333333333334) internal successors, (1424), 6 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states 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 12:29:12,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:12,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:12,462 INFO L175 Difference]: Start difference. First operand has 390 places, 382 transitions, 804 flow. Second operand 6 states and 1424 transitions. [2022-11-20 12:29:12,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 379 transitions, 1144 flow [2022-11-20 12:29:12,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 379 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:12,475 INFO L231 Difference]: Finished difference. Result has 387 places, 379 transitions, 798 flow [2022-11-20 12:29:12,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=798, PETRI_PLACES=387, PETRI_TRANSITIONS=379} [2022-11-20 12:29:12,477 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -10 predicate places. [2022-11-20 12:29:12,478 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 379 transitions, 798 flow [2022-11-20 12:29:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:12,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:12,479 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 12:29:12,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:29:12,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:12,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1590412246, now seen corresponding path program 1 times [2022-11-20 12:29:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:12,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819559222] [2022-11-20 12:29:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:13,173 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 12:29:13,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:13,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819559222] [2022-11-20 12:29:13,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819559222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:13,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:13,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:13,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002645015] [2022-11-20 12:29:13,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:13,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:13,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:13,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:13,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 399 [2022-11-20 12:29:13,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 379 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 12:29:13,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:13,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 399 [2022-11-20 12:29:13,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:14,095 INFO L130 PetriNetUnfolder]: 649/2318 cut-off events. [2022-11-20 12:29:14,095 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 12:29:14,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3865 conditions, 2318 events. 649/2318 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11727 event pairs, 648 based on Foata normal form. 0/2073 useless extension candidates. Maximal degree in co-relation 3518. Up to 1498 conditions per place. [2022-11-20 12:29:14,111 INFO L137 encePairwiseOnDemand]: 381/399 looper letters, 155 selfloop transitions, 15 changer transitions 0/376 dead transitions. [2022-11-20 12:29:14,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 376 transitions, 1132 flow [2022-11-20 12:29:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2022-11-20 12:29:14,117 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5935672514619883 [2022-11-20 12:29:14,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2022-11-20 12:29:14,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2022-11-20 12:29:14,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:14,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2022-11-20 12:29:14,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:14,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:14,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:14,205 INFO L175 Difference]: Start difference. First operand has 387 places, 379 transitions, 798 flow. Second operand 6 states and 1421 transitions. [2022-11-20 12:29:14,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 376 transitions, 1132 flow [2022-11-20 12:29:14,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 376 transitions, 1102 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:14,228 INFO L231 Difference]: Finished difference. Result has 384 places, 376 transitions, 792 flow [2022-11-20 12:29:14,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=792, PETRI_PLACES=384, PETRI_TRANSITIONS=376} [2022-11-20 12:29:14,232 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -13 predicate places. [2022-11-20 12:29:14,232 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 376 transitions, 792 flow [2022-11-20 12:29:14,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 12:29:14,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:14,235 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] [2022-11-20 12:29:14,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:29:14,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:14,236 INFO L85 PathProgramCache]: Analyzing trace with hash -437765646, now seen corresponding path program 1 times [2022-11-20 12:29:14,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:14,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499917153] [2022-11-20 12:29:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:14,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:14,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:14,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499917153] [2022-11-20 12:29:14,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499917153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:14,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792101181] [2022-11-20 12:29:14,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:14,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:14,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:14,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:14,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:29:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:14,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 12:29:14,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:15,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:15,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792101181] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:15,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:29:15,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-20 12:29:15,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229084803] [2022-11-20 12:29:15,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:15,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:29:15,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:15,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:29:15,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:29:15,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-20 12:29:15,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 376 transitions, 792 flow. Second operand has 10 states, 10 states have (on average 377.6) internal successors, (3776), 10 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states 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 12:29:15,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:15,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-20 12:29:15,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:15,663 INFO L130 PetriNetUnfolder]: 1/588 cut-off events. [2022-11-20 12:29:15,663 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:29:15,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 588 events. 1/588 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 2/578 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-20 12:29:15,665 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 47 selfloop transitions, 9 changer transitions 0/410 dead transitions. [2022-11-20 12:29:15,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 410 transitions, 974 flow [2022-11-20 12:29:15,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:29:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 12:29:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3406 transitions. [2022-11-20 12:29:15,673 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9484823169033695 [2022-11-20 12:29:15,673 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3406 transitions. [2022-11-20 12:29:15,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3406 transitions. [2022-11-20 12:29:15,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:15,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3406 transitions. [2022-11-20 12:29:15,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 378.44444444444446) internal successors, (3406), 9 states have internal predecessors, (3406), 0 states have call successors, (0), 0 states 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 12:29:15,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 399.0) internal successors, (3990), 10 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states 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 12:29:15,690 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 399.0) internal successors, (3990), 10 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states 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 12:29:15,690 INFO L175 Difference]: Start difference. First operand has 384 places, 376 transitions, 792 flow. Second operand 9 states and 3406 transitions. [2022-11-20 12:29:15,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 410 transitions, 974 flow [2022-11-20 12:29:15,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 410 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:15,699 INFO L231 Difference]: Finished difference. Result has 390 places, 382 transitions, 812 flow [2022-11-20 12:29:15,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=812, PETRI_PLACES=390, PETRI_TRANSITIONS=382} [2022-11-20 12:29:15,701 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, -7 predicate places. [2022-11-20 12:29:15,702 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 382 transitions, 812 flow [2022-11-20 12:29:15,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 377.6) internal successors, (3776), 10 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states 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 12:29:15,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:15,706 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:15,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:15,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:15,923 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:15,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:15,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1851680140, now seen corresponding path program 2 times [2022-11-20 12:29:15,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:15,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118701212] [2022-11-20 12:29:15,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:15,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:16,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118701212] [2022-11-20 12:29:16,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118701212] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:16,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389960994] [2022-11-20 12:29:16,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:29:16,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:16,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:16,816 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:16,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:29:17,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:29:17,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:29:17,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:29:17,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:17,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 12:29:17,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-20 12:29:17,244 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:29:17,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-20 12:29:17,281 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:29:17,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-20 12:29:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-20 12:29:17,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:17,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389960994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:17,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:17,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-20 12:29:17,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043072332] [2022-11-20 12:29:17,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:17,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:17,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:17,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:17,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:29:17,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 399 [2022-11-20 12:29:17,330 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 382 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states 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 12:29:17,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:17,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 399 [2022-11-20 12:29:17,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:20,396 INFO L130 PetriNetUnfolder]: 1388/4462 cut-off events. [2022-11-20 12:29:20,396 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-20 12:29:20,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7582 conditions, 4462 events. 1388/4462 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28724 event pairs, 95 based on Foata normal form. 0/4014 useless extension candidates. Maximal degree in co-relation 7076. Up to 1979 conditions per place. [2022-11-20 12:29:20,431 INFO L137 encePairwiseOnDemand]: 371/399 looper letters, 255 selfloop transitions, 74 changer transitions 0/546 dead transitions. [2022-11-20 12:29:20,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 546 transitions, 1798 flow [2022-11-20 12:29:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:20,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2022-11-20 12:29:20,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6720969089390142 [2022-11-20 12:29:20,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2022-11-20 12:29:20,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2022-11-20 12:29:20,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:20,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2022-11-20 12:29:20,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 268.1666666666667) internal successors, (1609), 6 states have internal predecessors, (1609), 0 states have call successors, (0), 0 states 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 12:29:20,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:20,446 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:20,446 INFO L175 Difference]: Start difference. First operand has 390 places, 382 transitions, 812 flow. Second operand 6 states and 1609 transitions. [2022-11-20 12:29:20,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 546 transitions, 1798 flow [2022-11-20 12:29:20,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 546 transitions, 1792 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-20 12:29:20,457 INFO L231 Difference]: Finished difference. Result has 398 places, 449 transitions, 1278 flow [2022-11-20 12:29:20,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=398, PETRI_TRANSITIONS=449} [2022-11-20 12:29:20,459 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 1 predicate places. [2022-11-20 12:29:20,459 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 449 transitions, 1278 flow [2022-11-20 12:29:20,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states 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 12:29:20,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:20,461 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:20,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:20,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-20 12:29:20,667 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1247089820, now seen corresponding path program 1 times [2022-11-20 12:29:20,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:20,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351288801] [2022-11-20 12:29:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:20,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:21,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:21,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351288801] [2022-11-20 12:29:21,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351288801] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:21,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31166500] [2022-11-20 12:29:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:21,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:21,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:21,494 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:21,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:29:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:22,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:29:22,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:22,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:23,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31166500] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:23,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:29:23,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 12:29:23,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020046737] [2022-11-20 12:29:23,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:23,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 12:29:23,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:23,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 12:29:23,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-20 12:29:23,286 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-20 12:29:23,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 449 transitions, 1278 flow. Second operand has 18 states, 18 states have (on average 378.8888888888889) internal successors, (6820), 18 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states 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 12:29:23,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:23,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-20 12:29:23,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:24,521 INFO L130 PetriNetUnfolder]: 119/1960 cut-off events. [2022-11-20 12:29:24,521 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-20 12:29:24,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 1960 events. 119/1960 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6307 event pairs, 0 based on Foata normal form. 4/1890 useless extension candidates. Maximal degree in co-relation 1698. Up to 173 conditions per place. [2022-11-20 12:29:24,531 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 103 selfloop transitions, 21 changer transitions 0/545 dead transitions. [2022-11-20 12:29:24,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 545 transitions, 1770 flow [2022-11-20 12:29:24,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 12:29:24,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 12:29:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7940 transitions. [2022-11-20 12:29:24,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9476071130206468 [2022-11-20 12:29:24,547 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 7940 transitions. [2022-11-20 12:29:24,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 7940 transitions. [2022-11-20 12:29:24,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:24,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 7940 transitions. [2022-11-20 12:29:24,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 378.0952380952381) internal successors, (7940), 21 states have internal predecessors, (7940), 0 states have call successors, (0), 0 states 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 12:29:24,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 399.0) internal successors, (8778), 22 states have internal predecessors, (8778), 0 states have call successors, (0), 0 states 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 12:29:24,590 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 399.0) internal successors, (8778), 22 states have internal predecessors, (8778), 0 states have call successors, (0), 0 states 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 12:29:24,590 INFO L175 Difference]: Start difference. First operand has 398 places, 449 transitions, 1278 flow. Second operand 21 states and 7940 transitions. [2022-11-20 12:29:24,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 545 transitions, 1770 flow [2022-11-20 12:29:24,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 545 transitions, 1770 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:29:24,612 INFO L231 Difference]: Finished difference. Result has 423 places, 462 transitions, 1408 flow [2022-11-20 12:29:24,613 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1408, PETRI_PLACES=423, PETRI_TRANSITIONS=462} [2022-11-20 12:29:24,614 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 26 predicate places. [2022-11-20 12:29:24,614 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 462 transitions, 1408 flow [2022-11-20 12:29:24,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 378.8888888888889) internal successors, (6820), 18 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states 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 12:29:24,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:24,619 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:24,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 12:29:24,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-20 12:29:24,827 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:24,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:24,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1504504800, now seen corresponding path program 2 times [2022-11-20 12:29:24,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:24,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310654916] [2022-11-20 12:29:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:24,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:27,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:27,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310654916] [2022-11-20 12:29:27,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310654916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:27,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399228365] [2022-11-20 12:29:27,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:29:27,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:27,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:27,829 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:27,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 12:29:28,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-20 12:29:28,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:29:28,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-20 12:29:28,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:28,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-20 12:29:28,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-20 12:29:28,571 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:29:28,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-20 12:29:28,619 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:29:28,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-20 12:29:28,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-20 12:29:28,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:29:28,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399228365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:28,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:29:28,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-20 12:29:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274346403] [2022-11-20 12:29:28,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:28,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:28,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:28,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:28,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-20 12:29:28,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 399 [2022-11-20 12:29:28,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 462 transitions, 1408 flow. Second operand has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 12:29:28,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:28,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 399 [2022-11-20 12:29:28,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:31,949 INFO L130 PetriNetUnfolder]: 1278/4824 cut-off events. [2022-11-20 12:29:31,949 INFO L131 PetriNetUnfolder]: For 1279/1378 co-relation queries the response was YES. [2022-11-20 12:29:31,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9396 conditions, 4824 events. 1278/4824 cut-off events. For 1279/1378 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27881 event pairs, 859 based on Foata normal form. 0/4414 useless extension candidates. Maximal degree in co-relation 8214. Up to 3042 conditions per place. [2022-11-20 12:29:31,976 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 224 selfloop transitions, 5 changer transitions 0/461 dead transitions. [2022-11-20 12:29:31,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 461 transitions, 1864 flow [2022-11-20 12:29:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:31,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2022-11-20 12:29:31,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.606516290726817 [2022-11-20 12:29:31,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1452 transitions. [2022-11-20 12:29:31,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1452 transitions. [2022-11-20 12:29:31,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:31,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1452 transitions. [2022-11-20 12:29:31,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:31,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:31,991 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:31,992 INFO L175 Difference]: Start difference. First operand has 423 places, 462 transitions, 1408 flow. Second operand 6 states and 1452 transitions. [2022-11-20 12:29:31,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 461 transitions, 1864 flow [2022-11-20 12:29:31,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 461 transitions, 1840 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-20 12:29:32,005 INFO L231 Difference]: Finished difference. Result has 421 places, 461 transitions, 1392 flow [2022-11-20 12:29:32,006 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1392, PETRI_PLACES=421, PETRI_TRANSITIONS=461} [2022-11-20 12:29:32,006 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 24 predicate places. [2022-11-20 12:29:32,007 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 461 transitions, 1392 flow [2022-11-20 12:29:32,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states 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 12:29:32,007 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:32,008 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:32,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:32,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-20 12:29:32,215 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:32,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:32,216 INFO L85 PathProgramCache]: Analyzing trace with hash 569529520, now seen corresponding path program 1 times [2022-11-20 12:29:32,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:32,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926202440] [2022-11-20 12:29:32,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:32,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926202440] [2022-11-20 12:29:34,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926202440] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:29:34,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404972217] [2022-11-20 12:29:34,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:34,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:29:34,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:29:34,861 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:29:34,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 12:29:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:36,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 3565 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-20 12:29:36,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:29:37,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:37,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:29:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:29:38,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404972217] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:38,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 12:29:38,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-20 12:29:38,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986347380] [2022-11-20 12:29:38,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:38,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-20 12:29:38,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:38,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-20 12:29:38,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-20 12:29:38,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 399 [2022-11-20 12:29:38,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 461 transitions, 1392 flow. Second operand has 23 states, 23 states have (on average 379.6521739130435) internal successors, (8732), 23 states have internal predecessors, (8732), 0 states have call successors, (0), 0 states 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 12:29:38,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:38,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 399 [2022-11-20 12:29:38,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:40,301 INFO L130 PetriNetUnfolder]: 119/2277 cut-off events. [2022-11-20 12:29:40,301 INFO L131 PetriNetUnfolder]: For 225/231 co-relation queries the response was YES. [2022-11-20 12:29:40,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3069 conditions, 2277 events. 119/2277 cut-off events. For 225/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6308 event pairs, 0 based on Foata normal form. 3/2207 useless extension candidates. Maximal degree in co-relation 1709. Up to 173 conditions per place. [2022-11-20 12:29:40,309 INFO L137 encePairwiseOnDemand]: 393/399 looper letters, 145 selfloop transitions, 30 changer transitions 0/595 dead transitions. [2022-11-20 12:29:40,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 595 transitions, 2098 flow [2022-11-20 12:29:40,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-20 12:29:40,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-20 12:29:40,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11338 transitions. [2022-11-20 12:29:40,329 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472013366750209 [2022-11-20 12:29:40,330 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 11338 transitions. [2022-11-20 12:29:40,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 11338 transitions. [2022-11-20 12:29:40,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:40,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 11338 transitions. [2022-11-20 12:29:40,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 377.93333333333334) internal successors, (11338), 30 states have internal predecessors, (11338), 0 states have call successors, (0), 0 states 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 12:29:40,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 399.0) internal successors, (12369), 31 states have internal predecessors, (12369), 0 states have call successors, (0), 0 states 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 12:29:40,380 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 399.0) internal successors, (12369), 31 states have internal predecessors, (12369), 0 states have call successors, (0), 0 states 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 12:29:40,380 INFO L175 Difference]: Start difference. First operand has 421 places, 461 transitions, 1392 flow. Second operand 30 states and 11338 transitions. [2022-11-20 12:29:40,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 595 transitions, 2098 flow [2022-11-20 12:29:40,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 595 transitions, 2088 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:29:40,393 INFO L231 Difference]: Finished difference. Result has 449 places, 471 transitions, 1534 flow [2022-11-20 12:29:40,394 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1534, PETRI_PLACES=449, PETRI_TRANSITIONS=471} [2022-11-20 12:29:40,395 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 52 predicate places. [2022-11-20 12:29:40,395 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 471 transitions, 1534 flow [2022-11-20 12:29:40,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 379.6521739130435) internal successors, (8732), 23 states have internal predecessors, (8732), 0 states have call successors, (0), 0 states 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 12:29:40,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:40,398 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:40,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:29:40,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64076bcc-97f5-47e2-b442-6f13c1a121e7/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-20 12:29:40,620 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1327737837, now seen corresponding path program 2 times [2022-11-20 12:29:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554562288] [2022-11-20 12:29:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:45,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 12:29:45,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:45,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554562288] [2022-11-20 12:29:45,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554562288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:45,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:45,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:45,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116680406] [2022-11-20 12:29:45,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:45,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:45,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:45,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:45,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:45,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 399 [2022-11-20 12:29:45,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 471 transitions, 1534 flow. Second operand has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 12:29:45,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:45,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 399 [2022-11-20 12:29:45,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:29:50,105 INFO L130 PetriNetUnfolder]: 1524/5633 cut-off events. [2022-11-20 12:29:50,105 INFO L131 PetriNetUnfolder]: For 1482/1589 co-relation queries the response was YES. [2022-11-20 12:29:50,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11008 conditions, 5633 events. 1524/5633 cut-off events. For 1482/1589 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31594 event pairs, 624 based on Foata normal form. 16/5229 useless extension candidates. Maximal degree in co-relation 9327. Up to 3064 conditions per place. [2022-11-20 12:29:50,132 INFO L137 encePairwiseOnDemand]: 376/399 looper letters, 301 selfloop transitions, 130 changer transitions 0/680 dead transitions. [2022-11-20 12:29:50,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 680 transitions, 3190 flow [2022-11-20 12:29:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:29:50,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:29:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2022-11-20 12:29:50,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.683375104427736 [2022-11-20 12:29:50,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2022-11-20 12:29:50,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2022-11-20 12:29:50,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:29:50,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2022-11-20 12:29:50,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states 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 12:29:50,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:50,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:29:50,145 INFO L175 Difference]: Start difference. First operand has 449 places, 471 transitions, 1534 flow. Second operand 6 states and 1636 transitions. [2022-11-20 12:29:50,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 680 transitions, 3190 flow [2022-11-20 12:29:50,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 680 transitions, 3144 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-20 12:29:50,163 INFO L231 Difference]: Finished difference. Result has 441 places, 600 transitions, 2716 flow [2022-11-20 12:29:50,164 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2716, PETRI_PLACES=441, PETRI_TRANSITIONS=600} [2022-11-20 12:29:50,164 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 44 predicate places. [2022-11-20 12:29:50,164 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 600 transitions, 2716 flow [2022-11-20 12:29:50,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 240.16666666666666) internal successors, (1441), 6 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states 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 12:29:50,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:29:50,166 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:50,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:29:50,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:29:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:29:50,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1403161834, now seen corresponding path program 1 times [2022-11-20 12:29:50,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:29:50,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660033556] [2022-11-20 12:29:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:29:50,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:29:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:29:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 12:29:55,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:29:55,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660033556] [2022-11-20 12:29:55,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660033556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:29:55,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:29:55,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:29:55,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967871090] [2022-11-20 12:29:55,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:29:55,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:29:55,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:29:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:29:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:29:55,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 399 [2022-11-20 12:29:55,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 600 transitions, 2716 flow. Second operand has 6 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:55,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:29:55,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 399 [2022-11-20 12:29:55,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:00,554 INFO L130 PetriNetUnfolder]: 1637/6434 cut-off events. [2022-11-20 12:30:00,554 INFO L131 PetriNetUnfolder]: For 3879/4077 co-relation queries the response was YES. [2022-11-20 12:30:00,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14019 conditions, 6434 events. 1637/6434 cut-off events. For 3879/4077 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40636 event pairs, 508 based on Foata normal form. 0/6062 useless extension candidates. Maximal degree in co-relation 12355. Up to 3327 conditions per place. [2022-11-20 12:30:00,619 INFO L137 encePairwiseOnDemand]: 377/399 looper letters, 428 selfloop transitions, 129 changer transitions 5/808 dead transitions. [2022-11-20 12:30:00,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 808 transitions, 4878 flow [2022-11-20 12:30:00,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:30:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:30:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1620 transitions. [2022-11-20 12:30:00,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6766917293233082 [2022-11-20 12:30:00,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1620 transitions. [2022-11-20 12:30:00,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1620 transitions. [2022-11-20 12:30:00,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:00,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1620 transitions. [2022-11-20 12:30:00,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 270.0) internal successors, (1620), 6 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 12:30:00,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:30:00,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:30:00,644 INFO L175 Difference]: Start difference. First operand has 441 places, 600 transitions, 2716 flow. Second operand 6 states and 1620 transitions. [2022-11-20 12:30:00,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 808 transitions, 4878 flow [2022-11-20 12:30:00,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 808 transitions, 4878 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:30:00,687 INFO L231 Difference]: Finished difference. Result has 451 places, 727 transitions, 4182 flow [2022-11-20 12:30:00,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=2716, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4182, PETRI_PLACES=451, PETRI_TRANSITIONS=727} [2022-11-20 12:30:00,689 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 54 predicate places. [2022-11-20 12:30:00,690 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 727 transitions, 4182 flow [2022-11-20 12:30:00,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.66666666666666) internal successors, (1432), 6 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:30:00,691 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:00,692 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:00,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:30:00,692 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:30:00,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:00,697 INFO L85 PathProgramCache]: Analyzing trace with hash 413039998, now seen corresponding path program 1 times [2022-11-20 12:30:00,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:00,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144612626] [2022-11-20 12:30:00,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:00,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:30:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:30:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-20 12:30:05,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:30:05,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144612626] [2022-11-20 12:30:05,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144612626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:30:05,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:30:05,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:30:05,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745478033] [2022-11-20 12:30:05,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:30:05,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:30:05,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:30:05,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:30:05,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:30:05,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 399 [2022-11-20 12:30:05,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 727 transitions, 4182 flow. Second operand has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states 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 12:30:05,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:30:05,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 399 [2022-11-20 12:30:05,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:30:11,214 INFO L130 PetriNetUnfolder]: 1747/6592 cut-off events. [2022-11-20 12:30:11,214 INFO L131 PetriNetUnfolder]: For 5719/5747 co-relation queries the response was YES. [2022-11-20 12:30:11,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16383 conditions, 6592 events. 1747/6592 cut-off events. For 5719/5747 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 40950 event pairs, 657 based on Foata normal form. 0/6288 useless extension candidates. Maximal degree in co-relation 14715. Up to 3974 conditions per place. [2022-11-20 12:30:11,258 INFO L137 encePairwiseOnDemand]: 380/399 looper letters, 495 selfloop transitions, 84 changer transitions 0/825 dead transitions. [2022-11-20 12:30:11,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 825 transitions, 5854 flow [2022-11-20 12:30:11,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:30:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:30:11,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1549 transitions. [2022-11-20 12:30:11,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470342522974102 [2022-11-20 12:30:11,263 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1549 transitions. [2022-11-20 12:30:11,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1549 transitions. [2022-11-20 12:30:11,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:30:11,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1549 transitions. [2022-11-20 12:30:11,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.1666666666667) internal successors, (1549), 6 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states 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 12:30:11,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:30:11,273 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 399.0) internal successors, (2793), 7 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states 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 12:30:11,275 INFO L175 Difference]: Start difference. First operand has 451 places, 727 transitions, 4182 flow. Second operand 6 states and 1549 transitions. [2022-11-20 12:30:11,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 825 transitions, 5854 flow [2022-11-20 12:30:11,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 825 transitions, 5600 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-20 12:30:11,325 INFO L231 Difference]: Finished difference. Result has 460 places, 798 transitions, 4718 flow [2022-11-20 12:30:11,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=399, PETRI_DIFFERENCE_MINUEND_FLOW=3934, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4718, PETRI_PLACES=460, PETRI_TRANSITIONS=798} [2022-11-20 12:30:11,327 INFO L288 CegarLoopForPetriNet]: 397 programPoint places, 63 predicate places. [2022-11-20 12:30:11,328 INFO L495 AbstractCegarLoop]: Abstraction has has 460 places, 798 transitions, 4718 flow [2022-11-20 12:30:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.5) internal successors, (1419), 6 states have internal predecessors, (1419), 0 states have call successors, (0), 0 states 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 12:30:11,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:30:11,329 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:11,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:30:11,330 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-20 12:30:11,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:30:11,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1844784965, now seen corresponding path program 1 times [2022-11-20 12:30:11,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:30:11,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527549369] [2022-11-20 12:30:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:30:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:31:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat