./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:46:01,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:46:01,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:46:01,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:46:01,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:46:01,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:46:01,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:46:01,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:46:01,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:46:01,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:46:01,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:46:01,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:46:01,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:46:01,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:46:01,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:46:01,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:46:01,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:46:01,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:46:01,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:46:01,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:46:01,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:46:01,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:46:01,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:46:01,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:46:01,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:46:01,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:46:01,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:46:01,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:46:01,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:46:01,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:46:01,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:46:01,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:46:01,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:46:01,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:46:01,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:46:01,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:46:01,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:46:01,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:46:01,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:46:01,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:46:01,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:46:01,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:46:01,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:46:01,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:46:01,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:46:01,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:46:01,591 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:46:01,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:46:01,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:46:01,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:46:01,592 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:46:01,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:46:01,594 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:46:01,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:46:01,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:46:01,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:46:01,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:46:01,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:46:01,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:46:01,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:46:01,596 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:46:01,596 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:46:01,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:46:01,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:46:01,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:46:01,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:46:01,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:46:01,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:46:01,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:01,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:46:01,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:46:01,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:46:01,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:46:01,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:46:01,600 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:46:01,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:46:01,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:46:01,601 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_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2022-11-16 12:46:01,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:46:02,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:46:02,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:46:02,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:46:02,017 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:46:02,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-16 12:46:02,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/data/f83b12965/786692f76bab45999263b28743c4f005/FLAGab163a609 [2022-11-16 12:46:02,673 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:46:02,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-11-16 12:46:02,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/data/f83b12965/786692f76bab45999263b28743c4f005/FLAGab163a609 [2022-11-16 12:46:02,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/data/f83b12965/786692f76bab45999263b28743c4f005 [2022-11-16 12:46:02,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:46:02,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:46:02,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:02,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:46:02,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:46:02,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:02" (1/1) ... [2022-11-16 12:46:02,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188de934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:02, skipping insertion in model container [2022-11-16 12:46:02,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:46:02" (1/1) ... [2022-11-16 12:46:02,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:46:03,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:46:03,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:03,921 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:46:04,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:46:04,096 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:46:04,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04 WrapperNode [2022-11-16 12:46:04,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:46:04,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:04,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:46:04,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:46:04,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,200 INFO L138 Inliner]: procedures = 369, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 212 [2022-11-16 12:46:04,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:46:04,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:46:04,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:46:04,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:46:04,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,237 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:46:04,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:46:04,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:46:04,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:46:04,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (1/1) ... [2022-11-16 12:46:04,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:46:04,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:46:04,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:46:04,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96fe1185-a90d-44e1-a75e-80bd8138357f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:46:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:46:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:46:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:46:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:46:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:46:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:46:04,331 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:46:04,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:46:04,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:46:04,333 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:46:04,544 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:46:04,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:46:05,188 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:46:05,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:46:05,203 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:46:05,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:05 BoogieIcfgContainer [2022-11-16 12:46:05,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:46:05,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:46:05,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:46:05,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:46:05,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:46:02" (1/3) ... [2022-11-16 12:46:05,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4209fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:05, skipping insertion in model container [2022-11-16 12:46:05,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:46:04" (2/3) ... [2022-11-16 12:46:05,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4209fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:46:05, skipping insertion in model container [2022-11-16 12:46:05,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:46:05" (3/3) ... [2022-11-16 12:46:05,217 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2022-11-16 12:46:05,226 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:46:05,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:46:05,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-16 12:46:05,237 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:46:05,376 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:46:05,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 250 transitions, 505 flow [2022-11-16 12:46:05,530 INFO L130 PetriNetUnfolder]: 0/249 cut-off events. [2022-11-16 12:46:05,530 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:05,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 249 events. 0/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 12:46:05,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 250 transitions, 505 flow [2022-11-16 12:46:05,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 249 transitions, 501 flow [2022-11-16 12:46:05,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:46:05,556 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;@71ee0416, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:46:05,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-16 12:46:05,569 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-16 12:46:05,570 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:05,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:05,571 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] [2022-11-16 12:46:05,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:05,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 610496887, now seen corresponding path program 1 times [2022-11-16 12:46:05,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:05,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833549114] [2022-11-16 12:46:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:05,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:06,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:06,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:06,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833549114] [2022-11-16 12:46:06,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833549114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:06,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:06,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:06,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476030165] [2022-11-16 12:46:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:06,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:06,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:06,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:06,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:06,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2022-11-16 12:46:06,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 249 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:06,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:06,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2022-11-16 12:46:06,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:07,390 INFO L130 PetriNetUnfolder]: 360/1314 cut-off events. [2022-11-16 12:46:07,390 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:46:07,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 1314 events. 360/1314 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6673 event pairs, 360 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1934. Up to 806 conditions per place. [2022-11-16 12:46:07,407 INFO L137 encePairwiseOnDemand]: 232/250 looper letters, 85 selfloop transitions, 15 changer transitions 0/246 dead transitions. [2022-11-16 12:46:07,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 246 transitions, 695 flow [2022-11-16 12:46:07,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:07,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 985 transitions. [2022-11-16 12:46:07,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2022-11-16 12:46:07,436 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 985 transitions. [2022-11-16 12:46:07,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 985 transitions. [2022-11-16 12:46:07,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:07,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 985 transitions. [2022-11-16 12:46:07,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.16666666666666) internal successors, (985), 6 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:07,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:07,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:07,465 INFO L175 Difference]: Start difference. First operand has 253 places, 249 transitions, 501 flow. Second operand 6 states and 985 transitions. [2022-11-16 12:46:07,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 246 transitions, 695 flow [2022-11-16 12:46:07,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 246 transitions, 694 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:46:07,485 INFO L231 Difference]: Finished difference. Result has 254 places, 246 transitions, 524 flow [2022-11-16 12:46:07,488 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=254, PETRI_TRANSITIONS=246} [2022-11-16 12:46:07,492 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 1 predicate places. [2022-11-16 12:46:07,493 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 246 transitions, 524 flow [2022-11-16 12:46:07,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:07,495 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:07,495 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:46:07,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:46:07,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:07,497 INFO L85 PathProgramCache]: Analyzing trace with hash -2061078139, now seen corresponding path program 1 times [2022-11-16 12:46:07,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:07,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039518101] [2022-11-16 12:46:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:07,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:08,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:08,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039518101] [2022-11-16 12:46:08,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039518101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:08,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:08,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:08,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42747913] [2022-11-16 12:46:08,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:08,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:08,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:08,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:08,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2022-11-16 12:46:08,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 246 transitions, 524 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:08,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2022-11-16 12:46:08,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:08,599 INFO L130 PetriNetUnfolder]: 360/1311 cut-off events. [2022-11-16 12:46:08,600 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:46:08,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1311 events. 360/1311 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6668 event pairs, 360 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1958. Up to 803 conditions per place. [2022-11-16 12:46:08,608 INFO L137 encePairwiseOnDemand]: 232/250 looper letters, 82 selfloop transitions, 15 changer transitions 0/243 dead transitions. [2022-11-16 12:46:08,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 243 transitions, 712 flow [2022-11-16 12:46:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 982 transitions. [2022-11-16 12:46:08,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6546666666666666 [2022-11-16 12:46:08,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 982 transitions. [2022-11-16 12:46:08,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 982 transitions. [2022-11-16 12:46:08,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:08,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 982 transitions. [2022-11-16 12:46:08,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,620 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,620 INFO L175 Difference]: Start difference. First operand has 254 places, 246 transitions, 524 flow. Second operand 6 states and 982 transitions. [2022-11-16 12:46:08,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 243 transitions, 712 flow [2022-11-16 12:46:08,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 243 transitions, 682 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:46:08,632 INFO L231 Difference]: Finished difference. Result has 251 places, 243 transitions, 518 flow [2022-11-16 12:46:08,633 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=251, PETRI_TRANSITIONS=243} [2022-11-16 12:46:08,634 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -2 predicate places. [2022-11-16 12:46:08,634 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 243 transitions, 518 flow [2022-11-16 12:46:08,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:08,635 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] [2022-11-16 12:46:08,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:46:08,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:08,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:08,638 INFO L85 PathProgramCache]: Analyzing trace with hash -467481932, now seen corresponding path program 1 times [2022-11-16 12:46:08,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:08,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672205168] [2022-11-16 12:46:08,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:08,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:08,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:08,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:08,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672205168] [2022-11-16 12:46:08,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672205168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:08,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:08,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651598699] [2022-11-16 12:46:08,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:08,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:08,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:08,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:08,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:08,724 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 250 [2022-11-16 12:46:08,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 243 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:08,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 250 [2022-11-16 12:46:08,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:08,832 INFO L130 PetriNetUnfolder]: 18/393 cut-off events. [2022-11-16 12:46:08,833 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:08,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 393 events. 18/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 808 event pairs, 18 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 308. Up to 56 conditions per place. [2022-11-16 12:46:08,835 INFO L137 encePairwiseOnDemand]: 247/250 looper letters, 19 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-16 12:46:08,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 242 transitions, 558 flow [2022-11-16 12:46:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:08,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2022-11-16 12:46:08,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9413333333333334 [2022-11-16 12:46:08,839 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2022-11-16 12:46:08,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2022-11-16 12:46:08,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:08,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2022-11-16 12:46:08,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,845 INFO L175 Difference]: Start difference. First operand has 251 places, 243 transitions, 518 flow. Second operand 3 states and 706 transitions. [2022-11-16 12:46:08,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 242 transitions, 558 flow [2022-11-16 12:46:08,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 242 transitions, 528 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:46:08,852 INFO L231 Difference]: Finished difference. Result has 247 places, 242 transitions, 490 flow [2022-11-16 12:46:08,853 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-11-16 12:46:08,854 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -6 predicate places. [2022-11-16 12:46:08,854 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 490 flow [2022-11-16 12:46:08,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:08,855 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] [2022-11-16 12:46:08,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:46:08,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:08,857 INFO L85 PathProgramCache]: Analyzing trace with hash 741524576, now seen corresponding path program 1 times [2022-11-16 12:46:08,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:08,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726789793] [2022-11-16 12:46:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:08,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:08,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:08,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726789793] [2022-11-16 12:46:08,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726789793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:08,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:08,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:08,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966682772] [2022-11-16 12:46:08,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:08,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:08,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:08,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:08,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:08,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 250 [2022-11-16 12:46:08,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:08,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:08,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 250 [2022-11-16 12:46:08,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:09,015 INFO L130 PetriNetUnfolder]: 8/338 cut-off events. [2022-11-16 12:46:09,015 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:46:09,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 338 events. 8/338 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 492 event pairs, 8 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 303. Up to 27 conditions per place. [2022-11-16 12:46:09,017 INFO L137 encePairwiseOnDemand]: 244/250 looper letters, 12 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2022-11-16 12:46:09,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 506 flow [2022-11-16 12:46:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:09,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2022-11-16 12:46:09,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.948 [2022-11-16 12:46:09,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2022-11-16 12:46:09,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2022-11-16 12:46:09,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:09,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2022-11-16 12:46:09,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:09,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:09,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:09,028 INFO L175 Difference]: Start difference. First operand has 247 places, 242 transitions, 490 flow. Second operand 3 states and 711 transitions. [2022-11-16 12:46:09,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 506 flow [2022-11-16 12:46:09,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:09,035 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 478 flow [2022-11-16 12:46:09,036 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-11-16 12:46:09,037 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -11 predicate places. [2022-11-16 12:46:09,037 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 478 flow [2022-11-16 12:46:09,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:09,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:09,038 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] [2022-11-16 12:46:09,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:46:09,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:09,040 INFO L85 PathProgramCache]: Analyzing trace with hash 518088406, now seen corresponding path program 1 times [2022-11-16 12:46:09,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:09,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304822851] [2022-11-16 12:46:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:09,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:09,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:09,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304822851] [2022-11-16 12:46:09,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304822851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:09,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:09,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:09,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404124200] [2022-11-16 12:46:09,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:09,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:09,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:09,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:09,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:09,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 250 [2022-11-16 12:46:09,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:09,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:09,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 250 [2022-11-16 12:46:09,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:10,048 INFO L130 PetriNetUnfolder]: 416/1389 cut-off events. [2022-11-16 12:46:10,048 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:10,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 1389 events. 416/1389 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6926 event pairs, 416 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 2233. Up to 916 conditions per place. [2022-11-16 12:46:10,055 INFO L137 encePairwiseOnDemand]: 244/250 looper letters, 83 selfloop transitions, 5 changer transitions 0/236 dead transitions. [2022-11-16 12:46:10,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 236 transitions, 652 flow [2022-11-16 12:46:10,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions. [2022-11-16 12:46:10,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6793333333333333 [2022-11-16 12:46:10,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1019 transitions. [2022-11-16 12:46:10,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1019 transitions. [2022-11-16 12:46:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1019 transitions. [2022-11-16 12:46:10,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,065 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 478 flow. Second operand 6 states and 1019 transitions. [2022-11-16 12:46:10,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 236 transitions, 652 flow [2022-11-16 12:46:10,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 236 transitions, 651 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:46:10,071 INFO L231 Difference]: Finished difference. Result has 245 places, 236 transitions, 485 flow [2022-11-16 12:46:10,072 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=245, PETRI_TRANSITIONS=236} [2022-11-16 12:46:10,074 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -8 predicate places. [2022-11-16 12:46:10,074 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 236 transitions, 485 flow [2022-11-16 12:46:10,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:10,076 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] [2022-11-16 12:46:10,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:46:10,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash 563099613, now seen corresponding path program 1 times [2022-11-16 12:46:10,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:10,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440785426] [2022-11-16 12:46:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:10,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:10,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440785426] [2022-11-16 12:46:10,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440785426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:10,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:10,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329012814] [2022-11-16 12:46:10,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:10,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:10,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:10,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:10,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:10,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 250 [2022-11-16 12:46:10,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 236 transitions, 485 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:10,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 250 [2022-11-16 12:46:10,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:10,239 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2022-11-16 12:46:10,239 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:10,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-11-16 12:46:10,241 INFO L137 encePairwiseOnDemand]: 247/250 looper letters, 7 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2022-11-16 12:46:10,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 235 transitions, 501 flow [2022-11-16 12:46:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:10,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2022-11-16 12:46:10,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9733333333333334 [2022-11-16 12:46:10,244 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 730 transitions. [2022-11-16 12:46:10,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 730 transitions. [2022-11-16 12:46:10,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:10,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 730 transitions. [2022-11-16 12:46:10,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,249 INFO L175 Difference]: Start difference. First operand has 245 places, 236 transitions, 485 flow. Second operand 3 states and 730 transitions. [2022-11-16 12:46:10,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 235 transitions, 501 flow [2022-11-16 12:46:10,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 235 transitions, 491 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:46:10,254 INFO L231 Difference]: Finished difference. Result has 241 places, 235 transitions, 477 flow [2022-11-16 12:46:10,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=241, PETRI_TRANSITIONS=235} [2022-11-16 12:46:10,257 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -12 predicate places. [2022-11-16 12:46:10,258 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 235 transitions, 477 flow [2022-11-16 12:46:10,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:10,259 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] [2022-11-16 12:46:10,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:46:10,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:10,260 INFO L85 PathProgramCache]: Analyzing trace with hash -313359700, now seen corresponding path program 1 times [2022-11-16 12:46:10,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:10,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344987383] [2022-11-16 12:46:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:10,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:10,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344987383] [2022-11-16 12:46:10,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344987383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:10,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:10,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:46:10,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954262019] [2022-11-16 12:46:10,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:10,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:46:10,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:10,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:46:10,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:46:10,358 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 250 [2022-11-16 12:46:10,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 235 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:10,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 250 [2022-11-16 12:46:10,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:10,396 INFO L130 PetriNetUnfolder]: 0/234 cut-off events. [2022-11-16 12:46:10,396 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:46:10,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 234 events. 0/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-11-16 12:46:10,397 INFO L137 encePairwiseOnDemand]: 248/250 looper letters, 4 selfloop transitions, 1 changer transitions 0/234 dead transitions. [2022-11-16 12:46:10,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 234 transitions, 485 flow [2022-11-16 12:46:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:46:10,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:46:10,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2022-11-16 12:46:10,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.98 [2022-11-16 12:46:10,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2022-11-16 12:46:10,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2022-11-16 12:46:10,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:10,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2022-11-16 12:46:10,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,408 INFO L175 Difference]: Start difference. First operand has 241 places, 235 transitions, 477 flow. Second operand 3 states and 735 transitions. [2022-11-16 12:46:10,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 234 transitions, 485 flow [2022-11-16 12:46:10,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 234 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:10,413 INFO L231 Difference]: Finished difference. Result has 240 places, 234 transitions, 473 flow [2022-11-16 12:46:10,413 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=240, PETRI_TRANSITIONS=234} [2022-11-16 12:46:10,415 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -13 predicate places. [2022-11-16 12:46:10,415 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 234 transitions, 473 flow [2022-11-16 12:46:10,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:10,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:10,416 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] [2022-11-16 12:46:10,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:46:10,416 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:10,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:10,417 INFO L85 PathProgramCache]: Analyzing trace with hash 147558708, now seen corresponding path program 1 times [2022-11-16 12:46:10,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:10,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626442440] [2022-11-16 12:46:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:10,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:11,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:11,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626442440] [2022-11-16 12:46:11,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626442440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:11,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:11,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:11,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499841061] [2022-11-16 12:46:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:11,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:11,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:11,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:11,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 250 [2022-11-16 12:46:11,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 234 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:11,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:11,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 250 [2022-11-16 12:46:11,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:12,256 INFO L130 PetriNetUnfolder]: 748/2393 cut-off events. [2022-11-16 12:46:12,256 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:46:12,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4032 conditions, 2393 events. 748/2393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14939 event pairs, 75 based on Foata normal form. 0/2145 useless extension candidates. Maximal degree in co-relation 3951. Up to 791 conditions per place. [2022-11-16 12:46:12,270 INFO L137 encePairwiseOnDemand]: 222/250 looper letters, 171 selfloop transitions, 70 changer transitions 0/390 dead transitions. [2022-11-16 12:46:12,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 390 transitions, 1267 flow [2022-11-16 12:46:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:12,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-11-16 12:46:12,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.794 [2022-11-16 12:46:12,275 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-11-16 12:46:12,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-11-16 12:46:12,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:12,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-11-16 12:46:12,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:12,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:12,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:12,282 INFO L175 Difference]: Start difference. First operand has 240 places, 234 transitions, 473 flow. Second operand 6 states and 1191 transitions. [2022-11-16 12:46:12,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 390 transitions, 1267 flow [2022-11-16 12:46:12,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 390 transitions, 1266 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:46:12,292 INFO L231 Difference]: Finished difference. Result has 248 places, 304 transitions, 950 flow [2022-11-16 12:46:12,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=950, PETRI_PLACES=248, PETRI_TRANSITIONS=304} [2022-11-16 12:46:12,295 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, -5 predicate places. [2022-11-16 12:46:12,295 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 304 transitions, 950 flow [2022-11-16 12:46:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:12,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:12,296 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] [2022-11-16 12:46:12,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:46:12,297 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash 753120510, now seen corresponding path program 1 times [2022-11-16 12:46:12,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:12,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20314322] [2022-11-16 12:46:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:12,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:13,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:13,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:13,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20314322] [2022-11-16 12:46:13,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20314322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:13,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:13,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:13,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024107961] [2022-11-16 12:46:13,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:13,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:13,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:13,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 250 [2022-11-16 12:46:13,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 304 transitions, 950 flow. Second operand has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:13,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:13,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 250 [2022-11-16 12:46:13,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:13,955 INFO L130 PetriNetUnfolder]: 836/2701 cut-off events. [2022-11-16 12:46:13,955 INFO L131 PetriNetUnfolder]: For 881/881 co-relation queries the response was YES. [2022-11-16 12:46:13,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5945 conditions, 2701 events. 836/2701 cut-off events. For 881/881 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17244 event pairs, 379 based on Foata normal form. 0/2514 useless extension candidates. Maximal degree in co-relation 5862. Up to 1700 conditions per place. [2022-11-16 12:46:13,974 INFO L137 encePairwiseOnDemand]: 235/250 looper letters, 166 selfloop transitions, 48 changer transitions 0/364 dead transitions. [2022-11-16 12:46:13,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 364 transitions, 1594 flow [2022-11-16 12:46:13,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-11-16 12:46:13,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7273333333333334 [2022-11-16 12:46:13,980 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-11-16 12:46:13,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-11-16 12:46:13,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:13,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-11-16 12:46:13,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:13,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:13,988 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:13,988 INFO L175 Difference]: Start difference. First operand has 248 places, 304 transitions, 950 flow. Second operand 6 states and 1091 transitions. [2022-11-16 12:46:13,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 364 transitions, 1594 flow [2022-11-16 12:46:13,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 364 transitions, 1594 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:46:14,002 INFO L231 Difference]: Finished difference. Result has 258 places, 347 transitions, 1338 flow [2022-11-16 12:46:14,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1338, PETRI_PLACES=258, PETRI_TRANSITIONS=347} [2022-11-16 12:46:14,004 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 5 predicate places. [2022-11-16 12:46:14,004 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 347 transitions, 1338 flow [2022-11-16 12:46:14,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:14,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:14,005 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] [2022-11-16 12:46:14,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:46:14,005 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:14,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2099992973, now seen corresponding path program 1 times [2022-11-16 12:46:14,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:14,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115100294] [2022-11-16 12:46:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:14,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:14,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:14,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115100294] [2022-11-16 12:46:14,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115100294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:14,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:14,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:14,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787882128] [2022-11-16 12:46:14,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:14,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:14,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:14,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:14,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:14,783 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 250 [2022-11-16 12:46:14,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 347 transitions, 1338 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:14,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:14,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 250 [2022-11-16 12:46:14,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:15,993 INFO L130 PetriNetUnfolder]: 1057/3517 cut-off events. [2022-11-16 12:46:15,993 INFO L131 PetriNetUnfolder]: For 2239/2413 co-relation queries the response was YES. [2022-11-16 12:46:16,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8637 conditions, 3517 events. 1057/3517 cut-off events. For 2239/2413 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24833 event pairs, 217 based on Foata normal form. 0/3378 useless extension candidates. Maximal degree in co-relation 8546. Up to 1726 conditions per place. [2022-11-16 12:46:16,028 INFO L137 encePairwiseOnDemand]: 228/250 looper letters, 273 selfloop transitions, 135 changer transitions 4/562 dead transitions. [2022-11-16 12:46:16,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 562 transitions, 3254 flow [2022-11-16 12:46:16,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1153 transitions. [2022-11-16 12:46:16,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7686666666666667 [2022-11-16 12:46:16,125 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1153 transitions. [2022-11-16 12:46:16,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1153 transitions. [2022-11-16 12:46:16,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:16,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1153 transitions. [2022-11-16 12:46:16,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:16,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:16,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:16,132 INFO L175 Difference]: Start difference. First operand has 258 places, 347 transitions, 1338 flow. Second operand 6 states and 1153 transitions. [2022-11-16 12:46:16,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 562 transitions, 3254 flow [2022-11-16 12:46:16,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 562 transitions, 3236 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:46:16,152 INFO L231 Difference]: Finished difference. Result has 268 places, 477 transitions, 2678 flow [2022-11-16 12:46:16,153 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=1320, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=268, PETRI_TRANSITIONS=477} [2022-11-16 12:46:16,154 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 15 predicate places. [2022-11-16 12:46:16,154 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 477 transitions, 2678 flow [2022-11-16 12:46:16,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:16,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:16,155 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] [2022-11-16 12:46:16,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:46:16,156 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1018956669, now seen corresponding path program 1 times [2022-11-16 12:46:16,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:16,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721854927] [2022-11-16 12:46:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:16,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:16,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721854927] [2022-11-16 12:46:16,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721854927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:16,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:16,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:46:16,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735865173] [2022-11-16 12:46:16,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:16,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:46:16,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:46:16,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:46:16,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 250 [2022-11-16 12:46:16,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 477 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:16,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:16,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 250 [2022-11-16 12:46:16,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:18,035 INFO L130 PetriNetUnfolder]: 1055/3499 cut-off events. [2022-11-16 12:46:18,035 INFO L131 PetriNetUnfolder]: For 3986/4048 co-relation queries the response was YES. [2022-11-16 12:46:18,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10364 conditions, 3499 events. 1055/3499 cut-off events. For 3986/4048 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24756 event pairs, 258 based on Foata normal form. 0/3407 useless extension candidates. Maximal degree in co-relation 10271. Up to 2152 conditions per place. [2022-11-16 12:46:18,077 INFO L137 encePairwiseOnDemand]: 235/250 looper letters, 331 selfloop transitions, 62 changer transitions 0/544 dead transitions. [2022-11-16 12:46:18,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 544 transitions, 3878 flow [2022-11-16 12:46:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:46:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:46:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-11-16 12:46:18,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7273333333333334 [2022-11-16 12:46:18,082 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-11-16 12:46:18,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-11-16 12:46:18,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:18,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-11-16 12:46:18,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:18,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:18,090 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:18,090 INFO L175 Difference]: Start difference. First operand has 268 places, 477 transitions, 2678 flow. Second operand 6 states and 1091 transitions. [2022-11-16 12:46:18,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 544 transitions, 3878 flow [2022-11-16 12:46:18,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 544 transitions, 3842 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-11-16 12:46:18,132 INFO L231 Difference]: Finished difference. Result has 278 places, 526 transitions, 3268 flow [2022-11-16 12:46:18,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=2642, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3268, PETRI_PLACES=278, PETRI_TRANSITIONS=526} [2022-11-16 12:46:18,133 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 25 predicate places. [2022-11-16 12:46:18,133 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 526 transitions, 3268 flow [2022-11-16 12:46:18,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:18,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:18,134 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] [2022-11-16 12:46:18,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:46:18,135 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:18,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:18,135 INFO L85 PathProgramCache]: Analyzing trace with hash -138424030, now seen corresponding path program 1 times [2022-11-16 12:46:18,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:18,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989392393] [2022-11-16 12:46:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:18,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:19,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:19,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:19,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989392393] [2022-11-16 12:46:19,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989392393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:19,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:19,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:19,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789889688] [2022-11-16 12:46:19,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:19,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:19,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:19,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:19,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:19,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:46:19,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 526 transitions, 3268 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:19,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:19,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:46:19,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:23,430 INFO L130 PetriNetUnfolder]: 1795/6038 cut-off events. [2022-11-16 12:46:23,430 INFO L131 PetriNetUnfolder]: For 9616/9738 co-relation queries the response was YES. [2022-11-16 12:46:23,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18994 conditions, 6038 events. 1795/6038 cut-off events. For 9616/9738 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 50870 event pairs, 244 based on Foata normal form. 48/5975 useless extension candidates. Maximal degree in co-relation 18885. Up to 1271 conditions per place. [2022-11-16 12:46:23,491 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 760 selfloop transitions, 232 changer transitions 7/1131 dead transitions. [2022-11-16 12:46:23,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1131 transitions, 9732 flow [2022-11-16 12:46:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 12:46:23,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 12:46:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4547 transitions. [2022-11-16 12:46:23,514 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6271724137931034 [2022-11-16 12:46:23,515 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4547 transitions. [2022-11-16 12:46:23,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4547 transitions. [2022-11-16 12:46:23,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:23,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4547 transitions. [2022-11-16 12:46:23,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 156.79310344827587) internal successors, (4547), 29 states have internal predecessors, (4547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:23,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:23,564 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:23,564 INFO L175 Difference]: Start difference. First operand has 278 places, 526 transitions, 3268 flow. Second operand 29 states and 4547 transitions. [2022-11-16 12:46:23,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1131 transitions, 9732 flow [2022-11-16 12:46:23,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1131 transitions, 9536 flow, removed 98 selfloop flow, removed 0 redundant places. [2022-11-16 12:46:23,695 INFO L231 Difference]: Finished difference. Result has 319 places, 663 transitions, 5335 flow [2022-11-16 12:46:23,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=3156, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5335, PETRI_PLACES=319, PETRI_TRANSITIONS=663} [2022-11-16 12:46:23,697 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 66 predicate places. [2022-11-16 12:46:23,697 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 663 transitions, 5335 flow [2022-11-16 12:46:23,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:23,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:23,698 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] [2022-11-16 12:46:23,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:46:23,699 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:23,699 INFO L85 PathProgramCache]: Analyzing trace with hash 162009068, now seen corresponding path program 1 times [2022-11-16 12:46:23,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:23,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837971491] [2022-11-16 12:46:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:23,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:25,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837971491] [2022-11-16 12:46:25,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837971491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:25,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:25,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:25,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268487800] [2022-11-16 12:46:25,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:25,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:25,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:25,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:25,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:25,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 250 [2022-11-16 12:46:25,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 663 transitions, 5335 flow. Second operand has 13 states, 13 states have (on average 149.46153846153845) internal successors, (1943), 13 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:25,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:25,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 250 [2022-11-16 12:46:25,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:28,092 INFO L130 PetriNetUnfolder]: 1678/5539 cut-off events. [2022-11-16 12:46:28,093 INFO L131 PetriNetUnfolder]: For 13402/13529 co-relation queries the response was YES. [2022-11-16 12:46:28,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19880 conditions, 5539 events. 1678/5539 cut-off events. For 13402/13529 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 44771 event pairs, 346 based on Foata normal form. 30/5489 useless extension candidates. Maximal degree in co-relation 19760. Up to 3084 conditions per place. [2022-11-16 12:46:28,162 INFO L137 encePairwiseOnDemand]: 231/250 looper letters, 534 selfloop transitions, 98 changer transitions 0/778 dead transitions. [2022-11-16 12:46:28,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 778 transitions, 7635 flow [2022-11-16 12:46:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:46:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:46:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2095 transitions. [2022-11-16 12:46:28,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6446153846153846 [2022-11-16 12:46:28,170 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2095 transitions. [2022-11-16 12:46:28,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2095 transitions. [2022-11-16 12:46:28,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:28,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2095 transitions. [2022-11-16 12:46:28,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 161.15384615384616) internal successors, (2095), 13 states have internal predecessors, (2095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:28,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 250.0) internal successors, (3500), 14 states have internal predecessors, (3500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:28,186 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 250.0) internal successors, (3500), 14 states have internal predecessors, (3500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:28,186 INFO L175 Difference]: Start difference. First operand has 319 places, 663 transitions, 5335 flow. Second operand 13 states and 2095 transitions. [2022-11-16 12:46:28,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 778 transitions, 7635 flow [2022-11-16 12:46:28,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 778 transitions, 7625 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:28,327 INFO L231 Difference]: Finished difference. Result has 334 places, 672 transitions, 5771 flow [2022-11-16 12:46:28,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=5325, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5771, PETRI_PLACES=334, PETRI_TRANSITIONS=672} [2022-11-16 12:46:28,329 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 81 predicate places. [2022-11-16 12:46:28,330 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 672 transitions, 5771 flow [2022-11-16 12:46:28,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 149.46153846153845) internal successors, (1943), 13 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:28,331 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:28,331 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] [2022-11-16 12:46:28,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:46:28,331 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:28,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:28,332 INFO L85 PathProgramCache]: Analyzing trace with hash 411547818, now seen corresponding path program 2 times [2022-11-16 12:46:28,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:28,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679861037] [2022-11-16 12:46:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:28,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:29,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:29,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679861037] [2022-11-16 12:46:29,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679861037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:29,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:29,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:29,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190374598] [2022-11-16 12:46:29,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:29,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:29,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:29,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:29,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:29,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:46:29,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 672 transitions, 5771 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:29,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:29,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:46:29,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:34,522 INFO L130 PetriNetUnfolder]: 2615/8832 cut-off events. [2022-11-16 12:46:34,522 INFO L131 PetriNetUnfolder]: For 26940/27133 co-relation queries the response was YES. [2022-11-16 12:46:34,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32429 conditions, 8832 events. 2615/8832 cut-off events. For 26940/27133 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 83908 event pairs, 410 based on Foata normal form. 83/8776 useless extension candidates. Maximal degree in co-relation 32296. Up to 1830 conditions per place. [2022-11-16 12:46:34,606 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 782 selfloop transitions, 329 changer transitions 7/1251 dead transitions. [2022-11-16 12:46:34,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 1251 transitions, 13251 flow [2022-11-16 12:46:34,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:46:34,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:46:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4673 transitions. [2022-11-16 12:46:34,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6230666666666667 [2022-11-16 12:46:34,619 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 4673 transitions. [2022-11-16 12:46:34,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 4673 transitions. [2022-11-16 12:46:34,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:34,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 4673 transitions. [2022-11-16 12:46:34,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 155.76666666666668) internal successors, (4673), 30 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:34,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 250.0) internal successors, (7750), 31 states have internal predecessors, (7750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:34,649 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 250.0) internal successors, (7750), 31 states have internal predecessors, (7750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:34,649 INFO L175 Difference]: Start difference. First operand has 334 places, 672 transitions, 5771 flow. Second operand 30 states and 4673 transitions. [2022-11-16 12:46:34,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 1251 transitions, 13251 flow [2022-11-16 12:46:34,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1251 transitions, 13187 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 12:46:34,883 INFO L231 Difference]: Finished difference. Result has 373 places, 800 transitions, 8841 flow [2022-11-16 12:46:34,884 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=5731, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8841, PETRI_PLACES=373, PETRI_TRANSITIONS=800} [2022-11-16 12:46:34,885 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 120 predicate places. [2022-11-16 12:46:34,885 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 800 transitions, 8841 flow [2022-11-16 12:46:34,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:34,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:34,887 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] [2022-11-16 12:46:34,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:46:34,887 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:34,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:34,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1563366956, now seen corresponding path program 3 times [2022-11-16 12:46:34,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:34,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465702390] [2022-11-16 12:46:34,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:34,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:36,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:36,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465702390] [2022-11-16 12:46:36,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465702390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:36,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:36,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:36,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769870887] [2022-11-16 12:46:36,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:36,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:36,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:36,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:46:36,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 800 transitions, 8841 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:36,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:36,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:46:36,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:41,966 INFO L130 PetriNetUnfolder]: 3778/12857 cut-off events. [2022-11-16 12:46:41,966 INFO L131 PetriNetUnfolder]: For 50477/50806 co-relation queries the response was YES. [2022-11-16 12:46:42,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50588 conditions, 12857 events. 3778/12857 cut-off events. For 50477/50806 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 135552 event pairs, 630 based on Foata normal form. 138/12808 useless extension candidates. Maximal degree in co-relation 50450. Up to 2767 conditions per place. [2022-11-16 12:46:42,140 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 796 selfloop transitions, 426 changer transitions 6/1361 dead transitions. [2022-11-16 12:46:42,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1361 transitions, 16948 flow [2022-11-16 12:46:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:46:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:46:42,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3232 transitions. [2022-11-16 12:46:42,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6464 [2022-11-16 12:46:42,149 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3232 transitions. [2022-11-16 12:46:42,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3232 transitions. [2022-11-16 12:46:42,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:42,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3232 transitions. [2022-11-16 12:46:42,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 161.6) internal successors, (3232), 20 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:42,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 250.0) internal successors, (5250), 21 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:42,169 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 250.0) internal successors, (5250), 21 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:42,169 INFO L175 Difference]: Start difference. First operand has 373 places, 800 transitions, 8841 flow. Second operand 20 states and 3232 transitions. [2022-11-16 12:46:42,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1361 transitions, 16948 flow [2022-11-16 12:46:42,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 1361 transitions, 16810 flow, removed 43 selfloop flow, removed 10 redundant places. [2022-11-16 12:46:42,766 INFO L231 Difference]: Finished difference. Result has 398 places, 935 transitions, 12750 flow [2022-11-16 12:46:42,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=8743, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=12750, PETRI_PLACES=398, PETRI_TRANSITIONS=935} [2022-11-16 12:46:42,768 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 145 predicate places. [2022-11-16 12:46:42,768 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 935 transitions, 12750 flow [2022-11-16 12:46:42,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:42,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:42,769 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] [2022-11-16 12:46:42,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:46:42,770 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:42,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -786559120, now seen corresponding path program 4 times [2022-11-16 12:46:42,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:42,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750795289] [2022-11-16 12:46:42,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:42,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:44,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:44,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750795289] [2022-11-16 12:46:44,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750795289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:44,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:44,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:44,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937378169] [2022-11-16 12:46:44,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:44,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:44,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:44,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:44,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:44,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:46:44,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 935 transitions, 12750 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:44,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:44,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:46:44,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:46:50,774 INFO L130 PetriNetUnfolder]: 3877/13016 cut-off events. [2022-11-16 12:46:50,775 INFO L131 PetriNetUnfolder]: For 69046/69482 co-relation queries the response was YES. [2022-11-16 12:46:50,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55346 conditions, 13016 events. 3877/13016 cut-off events. For 69046/69482 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 136356 event pairs, 665 based on Foata normal form. 86/12918 useless extension candidates. Maximal degree in co-relation 55255. Up to 5370 conditions per place. [2022-11-16 12:46:50,956 INFO L137 encePairwiseOnDemand]: 220/250 looper letters, 912 selfloop transitions, 298 changer transitions 7/1350 dead transitions. [2022-11-16 12:46:50,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1350 transitions, 19202 flow [2022-11-16 12:46:50,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 12:46:50,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 12:46:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4461 transitions. [2022-11-16 12:46:50,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6153103448275862 [2022-11-16 12:46:50,964 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4461 transitions. [2022-11-16 12:46:50,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4461 transitions. [2022-11-16 12:46:50,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:46:50,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4461 transitions. [2022-11-16 12:46:50,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 153.82758620689654) internal successors, (4461), 29 states have internal predecessors, (4461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,986 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:50,986 INFO L175 Difference]: Start difference. First operand has 398 places, 935 transitions, 12750 flow. Second operand 29 states and 4461 transitions. [2022-11-16 12:46:50,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1350 transitions, 19202 flow [2022-11-16 12:46:51,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 1350 transitions, 19174 flow, removed 12 selfloop flow, removed 2 redundant places. [2022-11-16 12:46:51,788 INFO L231 Difference]: Finished difference. Result has 430 places, 999 transitions, 14611 flow [2022-11-16 12:46:51,788 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=12724, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=935, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=14611, PETRI_PLACES=430, PETRI_TRANSITIONS=999} [2022-11-16 12:46:51,789 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 177 predicate places. [2022-11-16 12:46:51,789 INFO L495 AbstractCegarLoop]: Abstraction has has 430 places, 999 transitions, 14611 flow [2022-11-16 12:46:51,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:51,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:46:51,790 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] [2022-11-16 12:46:51,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:46:51,791 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:46:51,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:46:51,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1987266542, now seen corresponding path program 5 times [2022-11-16 12:46:51,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:46:51,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116723361] [2022-11-16 12:46:51,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:46:51,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:46:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:46:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:46:52,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:46:52,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116723361] [2022-11-16 12:46:52,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116723361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:46:52,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:46:52,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:46:52,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138888325] [2022-11-16 12:46:52,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:46:52,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:46:52,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:46:52,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:46:52,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:46:52,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:46:52,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 999 transitions, 14611 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:46:52,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:46:52,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:46:52,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:01,964 INFO L130 PetriNetUnfolder]: 5052/17156 cut-off events. [2022-11-16 12:47:01,964 INFO L131 PetriNetUnfolder]: For 103550/103967 co-relation queries the response was YES. [2022-11-16 12:47:02,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75352 conditions, 17156 events. 5052/17156 cut-off events. For 103550/103967 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 192031 event pairs, 884 based on Foata normal form. 177/17098 useless extension candidates. Maximal degree in co-relation 75246. Up to 3920 conditions per place. [2022-11-16 12:47:02,227 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 918 selfloop transitions, 514 changer transitions 6/1571 dead transitions. [2022-11-16 12:47:02,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1571 transitions, 24100 flow [2022-11-16 12:47:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:47:02,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:47:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3376 transitions. [2022-11-16 12:47:02,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6430476190476191 [2022-11-16 12:47:02,233 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3376 transitions. [2022-11-16 12:47:02,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3376 transitions. [2022-11-16 12:47:02,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:02,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3376 transitions. [2022-11-16 12:47:02,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 160.76190476190476) internal successors, (3376), 21 states have internal predecessors, (3376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:02,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 250.0) internal successors, (5500), 22 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:02,248 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 250.0) internal successors, (5500), 22 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:02,248 INFO L175 Difference]: Start difference. First operand has 430 places, 999 transitions, 14611 flow. Second operand 21 states and 3376 transitions. [2022-11-16 12:47:02,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1571 transitions, 24100 flow [2022-11-16 12:47:03,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1571 transitions, 23938 flow, removed 6 selfloop flow, removed 15 redundant places. [2022-11-16 12:47:03,363 INFO L231 Difference]: Finished difference. Result has 451 places, 1142 transitions, 19641 flow [2022-11-16 12:47:03,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=14526, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=999, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=373, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=19641, PETRI_PLACES=451, PETRI_TRANSITIONS=1142} [2022-11-16 12:47:03,364 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 198 predicate places. [2022-11-16 12:47:03,365 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 1142 transitions, 19641 flow [2022-11-16 12:47:03,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:03,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:03,366 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] [2022-11-16 12:47:03,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:47:03,366 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:47:03,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash -200119488, now seen corresponding path program 6 times [2022-11-16 12:47:03,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:03,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815673574] [2022-11-16 12:47:03,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:03,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:04,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:04,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815673574] [2022-11-16 12:47:04,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815673574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:04,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:04,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750837082] [2022-11-16 12:47:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:04,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:04,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:04,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:47:04,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1142 transitions, 19641 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:04,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:04,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:47:04,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:15,065 INFO L130 PetriNetUnfolder]: 5750/19401 cut-off events. [2022-11-16 12:47:15,065 INFO L131 PetriNetUnfolder]: For 151510/151935 co-relation queries the response was YES. [2022-11-16 12:47:15,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90547 conditions, 19401 events. 5750/19401 cut-off events. For 151510/151935 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 222094 event pairs, 883 based on Foata normal form. 171/19309 useless extension candidates. Maximal degree in co-relation 90423. Up to 4679 conditions per place. [2022-11-16 12:47:15,433 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 1041 selfloop transitions, 619 changer transitions 5/1798 dead transitions. [2022-11-16 12:47:15,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1798 transitions, 31288 flow [2022-11-16 12:47:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 12:47:15,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-16 12:47:15,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4226 transitions. [2022-11-16 12:47:15,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6260740740740741 [2022-11-16 12:47:15,443 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4226 transitions. [2022-11-16 12:47:15,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4226 transitions. [2022-11-16 12:47:15,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:15,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4226 transitions. [2022-11-16 12:47:15,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 156.5185185185185) internal successors, (4226), 27 states have internal predecessors, (4226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:15,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 250.0) internal successors, (7000), 28 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:15,470 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 250.0) internal successors, (7000), 28 states have internal predecessors, (7000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:15,470 INFO L175 Difference]: Start difference. First operand has 451 places, 1142 transitions, 19641 flow. Second operand 27 states and 4226 transitions. [2022-11-16 12:47:15,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1798 transitions, 31288 flow [2022-11-16 12:47:17,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1798 transitions, 31172 flow, removed 41 selfloop flow, removed 3 redundant places. [2022-11-16 12:47:17,485 INFO L231 Difference]: Finished difference. Result has 484 places, 1285 transitions, 25335 flow [2022-11-16 12:47:17,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=19548, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=487, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=25335, PETRI_PLACES=484, PETRI_TRANSITIONS=1285} [2022-11-16 12:47:17,487 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 231 predicate places. [2022-11-16 12:47:17,487 INFO L495 AbstractCegarLoop]: Abstraction has has 484 places, 1285 transitions, 25335 flow [2022-11-16 12:47:17,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:17,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:17,487 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] [2022-11-16 12:47:17,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:47:17,488 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:47:17,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:17,488 INFO L85 PathProgramCache]: Analyzing trace with hash 257806004, now seen corresponding path program 7 times [2022-11-16 12:47:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:17,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200002778] [2022-11-16 12:47:17,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:17,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:18,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200002778] [2022-11-16 12:47:18,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200002778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:18,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:18,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:18,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823832617] [2022-11-16 12:47:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:18,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:18,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:18,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:47:18,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 1285 transitions, 25335 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:18,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:18,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:47:18,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:33,214 INFO L130 PetriNetUnfolder]: 6616/22381 cut-off events. [2022-11-16 12:47:33,214 INFO L131 PetriNetUnfolder]: For 214816/215307 co-relation queries the response was YES. [2022-11-16 12:47:33,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109452 conditions, 22381 events. 6616/22381 cut-off events. For 214816/215307 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 265112 event pairs, 1063 based on Foata normal form. 219/22299 useless extension candidates. Maximal degree in co-relation 109320. Up to 4650 conditions per place. [2022-11-16 12:47:33,635 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 1009 selfloop transitions, 755 changer transitions 7/1904 dead transitions. [2022-11-16 12:47:33,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 1904 transitions, 36832 flow [2022-11-16 12:47:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 12:47:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-16 12:47:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4973 transitions. [2022-11-16 12:47:33,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.621625 [2022-11-16 12:47:33,642 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4973 transitions. [2022-11-16 12:47:33,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4973 transitions. [2022-11-16 12:47:33,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:33,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4973 transitions. [2022-11-16 12:47:33,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 155.40625) internal successors, (4973), 32 states have internal predecessors, (4973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:33,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 250.0) internal successors, (8250), 33 states have internal predecessors, (8250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:33,663 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 250.0) internal successors, (8250), 33 states have internal predecessors, (8250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:33,663 INFO L175 Difference]: Start difference. First operand has 484 places, 1285 transitions, 25335 flow. Second operand 32 states and 4973 transitions. [2022-11-16 12:47:33,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 1904 transitions, 36832 flow [2022-11-16 12:47:36,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 1904 transitions, 36677 flow, removed 18 selfloop flow, removed 15 redundant places. [2022-11-16 12:47:36,375 INFO L231 Difference]: Finished difference. Result has 515 places, 1414 transitions, 31819 flow [2022-11-16 12:47:36,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=25193, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=627, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=31819, PETRI_PLACES=515, PETRI_TRANSITIONS=1414} [2022-11-16 12:47:36,376 INFO L288 CegarLoopForPetriNet]: 253 programPoint places, 262 predicate places. [2022-11-16 12:47:36,376 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 1414 transitions, 31819 flow [2022-11-16 12:47:36,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:36,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:36,377 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] [2022-11-16 12:47:36,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:47:36,378 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 12:47:36,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1793253010, now seen corresponding path program 8 times [2022-11-16 12:47:36,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:36,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302786325] [2022-11-16 12:47:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:47:37,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:37,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302786325] [2022-11-16 12:47:37,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302786325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:37,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:37,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847970278] [2022-11-16 12:47:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:37,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:37,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:37,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:37,346 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-11-16 12:47:37,347 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1414 transitions, 31819 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:37,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:37,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-11-16 12:47:37,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand