./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/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_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/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_14579a2a-c058-4c72-8528-f49845ef4cbb/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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --- 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 12:47:20,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:47:20,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:47:20,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:47:20,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:47:20,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:47:20,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:47:20,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:47:20,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:47:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:47:20,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:47:20,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:47:20,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:47:20,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:47:20,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:47:20,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:47:20,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:47:20,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:47:20,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:47:20,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:47:20,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:47:20,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:47:20,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:47:20,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:47:20,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:47:20,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:47:20,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:47:20,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:47:20,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:47:20,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:47:20,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:47:20,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:47:20,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:47:20,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:47:20,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:47:20,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:47:20,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:47:20,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:47:20,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:47:20,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:47:20,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:47:20,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:47:20,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:47:20,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:47:20,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:47:20,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:47:20,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:47:20,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:47:20,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:47:20,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:47:20,450 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:47:20,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:47:20,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:47:20,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:47:20,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:47:20,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:47:20,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:47:20,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:47:20,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:47:20,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:47:20,454 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:47:20,454 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:47:20,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:47:20,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:47:20,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:47:20,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:47:20,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:47:20,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:47:20,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:47:20,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:47:20,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:47:20,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:47:20,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:47:20,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:47:20,459 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:47:20,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:47:20,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:47:20,460 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_14579a2a-c058-4c72-8528-f49845ef4cbb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc [2022-11-16 12:47:20,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:47:20,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:47:20,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:47:20,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:47:20,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:47:20,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-16 12:47:20,973 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/data/13b8c5aca/2b31fbf637444226974b48a0c6aa1023/FLAGba637945c [2022-11-16 12:47:21,701 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:47:21,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/sv-benchmarks/c/goblint-regression/09-regions_01-list_rc.i [2022-11-16 12:47:21,721 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/data/13b8c5aca/2b31fbf637444226974b48a0c6aa1023/FLAGba637945c [2022-11-16 12:47:21,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/data/13b8c5aca/2b31fbf637444226974b48a0c6aa1023 [2022-11-16 12:47:21,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:47:21,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:47:21,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:47:21,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:47:21,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:47:21,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:47:21" (1/1) ... [2022-11-16 12:47:21,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a724cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:21, skipping insertion in model container [2022-11-16 12:47:21,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:47:21" (1/1) ... [2022-11-16 12:47:21,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:47:22,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:47:22,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:47:22,744 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:47:22,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:47:22,907 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:47:22,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22 WrapperNode [2022-11-16 12:47:22,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:47:22,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:47:22,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:47:22,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:47:22,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:22,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,008 INFO L138 Inliner]: procedures = 368, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 176 [2022-11-16 12:47:23,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:47:23,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:47:23,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:47:23,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:47:23,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,048 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:47:23,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:47:23,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:47:23,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:47:23,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (1/1) ... [2022-11-16 12:47:23,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:47:23,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:47:23,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:47:23,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14579a2a-c058-4c72-8528-f49845ef4cbb/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:47:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:47:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:47:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:47:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:47:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:47:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:47:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:47:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:47:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:47:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:47:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:47:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:47:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:47:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:47:23,175 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 12:47:23,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:47:23,371 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:47:24,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:47:24,044 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:47:24,044 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:47:24,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:47:24 BoogieIcfgContainer [2022-11-16 12:47:24,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:47:24,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:47:24,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:47:24,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:47:24,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:47:21" (1/3) ... [2022-11-16 12:47:24,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5d3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:47:24, skipping insertion in model container [2022-11-16 12:47:24,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:47:22" (2/3) ... [2022-11-16 12:47:24,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5d3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:47:24, skipping insertion in model container [2022-11-16 12:47:24,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:47:24" (3/3) ... [2022-11-16 12:47:24,058 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2022-11-16 12:47:24,069 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:47:24,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:47:24,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 12:47:24,082 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:47:24,200 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:47:24,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 207 transitions, 419 flow [2022-11-16 12:47:24,370 INFO L130 PetriNetUnfolder]: 0/206 cut-off events. [2022-11-16 12:47:24,370 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:47:24,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 206 events. 0/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 12:47:24,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 207 transitions, 419 flow [2022-11-16 12:47:24,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 206 transitions, 415 flow [2022-11-16 12:47:24,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:47:24,417 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;@18342fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:47:24,418 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-16 12:47:24,428 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-11-16 12:47:24,429 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:47:24,429 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:24,430 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] [2022-11-16 12:47:24,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:24,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:24,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1246807347, now seen corresponding path program 1 times [2022-11-16 12:47:24,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:24,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252041160] [2022-11-16 12:47:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:25,365 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 12:47:25,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:25,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252041160] [2022-11-16 12:47:25,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252041160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:25,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:25,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:25,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851716528] [2022-11-16 12:47:25,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:25,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:25,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:25,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:25,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 207 [2022-11-16 12:47:25,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 206 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states 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 12:47:25,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:25,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 207 [2022-11-16 12:47:25,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:26,197 INFO L130 PetriNetUnfolder]: 360/1269 cut-off events. [2022-11-16 12:47:26,198 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:47:26,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2077 conditions, 1269 events. 360/1269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6601 event pairs, 360 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 1926. Up to 794 conditions per place. [2022-11-16 12:47:26,218 INFO L137 encePairwiseOnDemand]: 195/207 looper letters, 73 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2022-11-16 12:47:26,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 204 transitions, 577 flow [2022-11-16 12:47:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:26,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2022-11-16 12:47:26,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6578099838969405 [2022-11-16 12:47:26,255 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 817 transitions. [2022-11-16 12:47:26,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 817 transitions. [2022-11-16 12:47:26,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:26,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 817 transitions. [2022-11-16 12:47:26,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states 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 12:47:26,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:26,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:26,288 INFO L175 Difference]: Start difference. First operand has 210 places, 206 transitions, 415 flow. Second operand 6 states and 817 transitions. [2022-11-16 12:47:26,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 204 transitions, 577 flow [2022-11-16 12:47:26,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 204 transitions, 576 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:47:26,312 INFO L231 Difference]: Finished difference. Result has 212 places, 204 transitions, 430 flow [2022-11-16 12:47:26,314 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=212, PETRI_TRANSITIONS=204} [2022-11-16 12:47:26,320 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 2 predicate places. [2022-11-16 12:47:26,321 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 204 transitions, 430 flow [2022-11-16 12:47:26,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states 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 12:47:26,323 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:26,323 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:47:26,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:47:26,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:26,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash -607585706, now seen corresponding path program 1 times [2022-11-16 12:47:26,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:26,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539513937] [2022-11-16 12:47:26,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:26,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:26,872 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 12:47:26,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:26,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539513937] [2022-11-16 12:47:26,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539513937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:26,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:26,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:26,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344264209] [2022-11-16 12:47:26,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:26,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:26,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:26,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:26,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:26,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 207 [2022-11-16 12:47:26,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 204 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states 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 12:47:26,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:26,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 207 [2022-11-16 12:47:26,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:27,541 INFO L130 PetriNetUnfolder]: 360/1267 cut-off events. [2022-11-16 12:47:27,542 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:47:27,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2083 conditions, 1267 events. 360/1267 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6542 event pairs, 360 based on Foata normal form. 0/1100 useless extension candidates. Maximal degree in co-relation 1968. Up to 792 conditions per place. [2022-11-16 12:47:27,552 INFO L137 encePairwiseOnDemand]: 195/207 looper letters, 71 selfloop transitions, 10 changer transitions 0/202 dead transitions. [2022-11-16 12:47:27,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 202 transitions, 588 flow [2022-11-16 12:47:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 815 transitions. [2022-11-16 12:47:27,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6561996779388084 [2022-11-16 12:47:27,556 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 815 transitions. [2022-11-16 12:47:27,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 815 transitions. [2022-11-16 12:47:27,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:27,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 815 transitions. [2022-11-16 12:47:27,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states 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 12:47:27,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:27,564 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:27,564 INFO L175 Difference]: Start difference. First operand has 212 places, 204 transitions, 430 flow. Second operand 6 states and 815 transitions. [2022-11-16 12:47:27,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 202 transitions, 588 flow [2022-11-16 12:47:27,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 202 transitions, 568 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:47:27,577 INFO L231 Difference]: Finished difference. Result has 210 places, 202 transitions, 426 flow [2022-11-16 12:47:27,578 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=210, PETRI_TRANSITIONS=202} [2022-11-16 12:47:27,579 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 0 predicate places. [2022-11-16 12:47:27,580 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 202 transitions, 426 flow [2022-11-16 12:47:27,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states 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 12:47:27,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:27,581 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] [2022-11-16 12:47:27,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:47:27,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:27,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1856806696, now seen corresponding path program 1 times [2022-11-16 12:47:27,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:27,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971828678] [2022-11-16 12:47:27,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,674 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 12:47:27,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971828678] [2022-11-16 12:47:27,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971828678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:27,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:27,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:47:27,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395522576] [2022-11-16 12:47:27,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:27,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:47:27,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:27,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:47:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:47:27,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 207 [2022-11-16 12:47:27,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 202 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 12:47:27,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:27,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 207 [2022-11-16 12:47:27,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:27,759 INFO L130 PetriNetUnfolder]: 18/352 cut-off events. [2022-11-16 12:47:27,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:47:27,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 352 events. 18/352 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 800 event pairs, 18 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2022-11-16 12:47:27,761 INFO L137 encePairwiseOnDemand]: 204/207 looper letters, 19 selfloop transitions, 2 changer transitions 0/201 dead transitions. [2022-11-16 12:47:27,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 201 transitions, 466 flow [2022-11-16 12:47:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:47:27,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:47:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 577 transitions. [2022-11-16 12:47:27,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.92914653784219 [2022-11-16 12:47:27,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 577 transitions. [2022-11-16 12:47:27,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 577 transitions. [2022-11-16 12:47:27,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:27,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 577 transitions. [2022-11-16 12:47:27,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states 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 12:47:27,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 12:47:27,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 12:47:27,769 INFO L175 Difference]: Start difference. First operand has 210 places, 202 transitions, 426 flow. Second operand 3 states and 577 transitions. [2022-11-16 12:47:27,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 201 transitions, 466 flow [2022-11-16 12:47:27,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 201 transitions, 446 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:47:27,774 INFO L231 Difference]: Finished difference. Result has 206 places, 201 transitions, 408 flow [2022-11-16 12:47:27,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=206, PETRI_TRANSITIONS=201} [2022-11-16 12:47:27,775 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, -4 predicate places. [2022-11-16 12:47:27,775 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 201 transitions, 408 flow [2022-11-16 12:47:27,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 12:47:27,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:27,777 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] [2022-11-16 12:47:27,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:47:27,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 85833681, now seen corresponding path program 1 times [2022-11-16 12:47:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041666002] [2022-11-16 12:47:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:27,832 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 12:47:27,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:27,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041666002] [2022-11-16 12:47:27,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041666002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:27,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:27,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:47:27,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386577465] [2022-11-16 12:47:27,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:27,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:47:27,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:27,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:47:27,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:47:27,837 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 207 [2022-11-16 12:47:27,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 201 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 12:47:27,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:27,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 207 [2022-11-16 12:47:27,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:27,900 INFO L130 PetriNetUnfolder]: 8/297 cut-off events. [2022-11-16 12:47:27,901 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:47:27,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 297 events. 8/297 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 485 event pairs, 8 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 265. Up to 27 conditions per place. [2022-11-16 12:47:27,902 INFO L137 encePairwiseOnDemand]: 201/207 looper letters, 12 selfloop transitions, 1 changer transitions 0/196 dead transitions. [2022-11-16 12:47:27,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 196 transitions, 424 flow [2022-11-16 12:47:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:47:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:47:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2022-11-16 12:47:27,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371980676328503 [2022-11-16 12:47:27,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2022-11-16 12:47:27,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2022-11-16 12:47:27,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:27,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2022-11-16 12:47:27,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states 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 12:47:27,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 12:47:27,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 12:47:27,911 INFO L175 Difference]: Start difference. First operand has 206 places, 201 transitions, 408 flow. Second operand 3 states and 582 transitions. [2022-11-16 12:47:27,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 196 transitions, 424 flow [2022-11-16 12:47:27,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 196 transitions, 420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:47:27,916 INFO L231 Difference]: Finished difference. Result has 201 places, 196 transitions, 396 flow [2022-11-16 12:47:27,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=201, PETRI_TRANSITIONS=196} [2022-11-16 12:47:27,918 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, -9 predicate places. [2022-11-16 12:47:27,918 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 196 transitions, 396 flow [2022-11-16 12:47:27,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 12:47:27,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:27,919 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] [2022-11-16 12:47:27,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:47:27,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:27,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:27,920 INFO L85 PathProgramCache]: Analyzing trace with hash -409921448, now seen corresponding path program 1 times [2022-11-16 12:47:27,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:27,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177768101] [2022-11-16 12:47:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:28,580 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 12:47:28,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:28,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177768101] [2022-11-16 12:47:28,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177768101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:28,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:28,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753778024] [2022-11-16 12:47:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:28,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:28,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:28,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:28,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:28,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 207 [2022-11-16 12:47:28,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 196 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 12:47:28,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:28,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 207 [2022-11-16 12:47:28,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:29,141 INFO L130 PetriNetUnfolder]: 416/1345 cut-off events. [2022-11-16 12:47:29,141 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:47:29,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2261 conditions, 1345 events. 416/1345 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6906 event pairs, 416 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 2182. Up to 906 conditions per place. [2022-11-16 12:47:29,149 INFO L137 encePairwiseOnDemand]: 201/207 looper letters, 73 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2022-11-16 12:47:29,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 195 transitions, 550 flow [2022-11-16 12:47:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 823 transitions. [2022-11-16 12:47:29,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6626409017713365 [2022-11-16 12:47:29,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 823 transitions. [2022-11-16 12:47:29,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 823 transitions. [2022-11-16 12:47:29,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:29,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 823 transitions. [2022-11-16 12:47:29,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states 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 12:47:29,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:29,162 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:29,162 INFO L175 Difference]: Start difference. First operand has 201 places, 196 transitions, 396 flow. Second operand 6 states and 823 transitions. [2022-11-16 12:47:29,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 195 transitions, 550 flow [2022-11-16 12:47:29,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 195 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:47:29,168 INFO L231 Difference]: Finished difference. Result has 204 places, 195 transitions, 403 flow [2022-11-16 12:47:29,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=204, PETRI_TRANSITIONS=195} [2022-11-16 12:47:29,172 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, -6 predicate places. [2022-11-16 12:47:29,173 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 195 transitions, 403 flow [2022-11-16 12:47:29,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 0 states have call successors, (0), 0 states 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 12:47:29,174 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:29,174 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] [2022-11-16 12:47:29,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:47:29,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash 999506412, now seen corresponding path program 1 times [2022-11-16 12:47:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:29,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260151161] [2022-11-16 12:47:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:29,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:30,022 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 12:47:30,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:30,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260151161] [2022-11-16 12:47:30,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260151161] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:30,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:30,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:30,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130386759] [2022-11-16 12:47:30,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:30,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:30,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:30,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:30,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:30,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 207 [2022-11-16 12:47:30,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 195 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 12:47:30,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:30,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 207 [2022-11-16 12:47:30,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:31,267 INFO L130 PetriNetUnfolder]: 748/2372 cut-off events. [2022-11-16 12:47:31,267 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:47:31,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4005 conditions, 2372 events. 748/2372 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15048 event pairs, 76 based on Foata normal form. 0/2127 useless extension candidates. Maximal degree in co-relation 3927. Up to 781 conditions per place. [2022-11-16 12:47:31,326 INFO L137 encePairwiseOnDemand]: 179/207 looper letters, 161 selfloop transitions, 70 changer transitions 0/351 dead transitions. [2022-11-16 12:47:31,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 351 transitions, 1177 flow [2022-11-16 12:47:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 995 transitions. [2022-11-16 12:47:31,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8011272141706924 [2022-11-16 12:47:31,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 995 transitions. [2022-11-16 12:47:31,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 995 transitions. [2022-11-16 12:47:31,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:31,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 995 transitions. [2022-11-16 12:47:31,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 165.83333333333334) internal successors, (995), 6 states have internal predecessors, (995), 0 states have call successors, (0), 0 states 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 12:47:31,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:31,337 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:31,337 INFO L175 Difference]: Start difference. First operand has 204 places, 195 transitions, 403 flow. Second operand 6 states and 995 transitions. [2022-11-16 12:47:31,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 351 transitions, 1177 flow [2022-11-16 12:47:31,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 351 transitions, 1167 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:47:31,345 INFO L231 Difference]: Finished difference. Result has 208 places, 265 transitions, 871 flow [2022-11-16 12:47:31,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=871, PETRI_PLACES=208, PETRI_TRANSITIONS=265} [2022-11-16 12:47:31,349 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, -2 predicate places. [2022-11-16 12:47:31,350 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 265 transitions, 871 flow [2022-11-16 12:47:31,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 12:47:31,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:31,351 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] [2022-11-16 12:47:31,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:47:31,351 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:31,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash 714264328, now seen corresponding path program 1 times [2022-11-16 12:47:31,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:31,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795506097] [2022-11-16 12:47:31,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:31,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:32,096 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 12:47:32,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:32,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795506097] [2022-11-16 12:47:32,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795506097] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:32,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:32,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:32,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618506943] [2022-11-16 12:47:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:32,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:32,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:32,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:32,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 207 [2022-11-16 12:47:32,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 265 transitions, 871 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states 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 12:47:32,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:32,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 207 [2022-11-16 12:47:32,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:33,042 INFO L130 PetriNetUnfolder]: 836/2669 cut-off events. [2022-11-16 12:47:33,042 INFO L131 PetriNetUnfolder]: For 869/869 co-relation queries the response was YES. [2022-11-16 12:47:33,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5902 conditions, 2669 events. 836/2669 cut-off events. For 869/869 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17275 event pairs, 379 based on Foata normal form. 0/2486 useless extension candidates. Maximal degree in co-relation 5822. Up to 1690 conditions per place. [2022-11-16 12:47:33,060 INFO L137 encePairwiseOnDemand]: 192/207 looper letters, 156 selfloop transitions, 48 changer transitions 0/325 dead transitions. [2022-11-16 12:47:33,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 325 transitions, 1495 flow [2022-11-16 12:47:33,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 895 transitions. [2022-11-16 12:47:33,064 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7206119162640902 [2022-11-16 12:47:33,064 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 895 transitions. [2022-11-16 12:47:33,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 895 transitions. [2022-11-16 12:47:33,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:33,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 895 transitions. [2022-11-16 12:47:33,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states 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 12:47:33,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:33,071 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:33,071 INFO L175 Difference]: Start difference. First operand has 208 places, 265 transitions, 871 flow. Second operand 6 states and 895 transitions. [2022-11-16 12:47:33,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 325 transitions, 1495 flow [2022-11-16 12:47:33,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 325 transitions, 1495 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:47:33,093 INFO L231 Difference]: Finished difference. Result has 218 places, 308 transitions, 1259 flow [2022-11-16 12:47:33,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1259, PETRI_PLACES=218, PETRI_TRANSITIONS=308} [2022-11-16 12:47:33,095 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 8 predicate places. [2022-11-16 12:47:33,095 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 308 transitions, 1259 flow [2022-11-16 12:47:33,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states 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 12:47:33,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:33,099 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] [2022-11-16 12:47:33,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:47:33,099 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:33,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1088143909, now seen corresponding path program 1 times [2022-11-16 12:47:33,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:33,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119054616] [2022-11-16 12:47:33,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:33,785 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 12:47:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:33,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119054616] [2022-11-16 12:47:33,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119054616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:33,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:33,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:47:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001220881] [2022-11-16 12:47:33,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:33,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:47:33,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:47:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:47:33,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 207 [2022-11-16 12:47:33,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 308 transitions, 1259 flow. Second operand has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 12:47:33,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:33,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 207 [2022-11-16 12:47:33,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:35,194 INFO L130 PetriNetUnfolder]: 1029/3400 cut-off events. [2022-11-16 12:47:35,195 INFO L131 PetriNetUnfolder]: For 2093/2128 co-relation queries the response was YES. [2022-11-16 12:47:35,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8414 conditions, 3400 events. 1029/3400 cut-off events. For 2093/2128 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 24299 event pairs, 193 based on Foata normal form. 0/3270 useless extension candidates. Maximal degree in co-relation 8326. Up to 1659 conditions per place. [2022-11-16 12:47:35,223 INFO L137 encePairwiseOnDemand]: 185/207 looper letters, 262 selfloop transitions, 135 changer transitions 4/523 dead transitions. [2022-11-16 12:47:35,224 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 523 transitions, 3153 flow [2022-11-16 12:47:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:47:35,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:47:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-16 12:47:35,228 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7745571658615137 [2022-11-16 12:47:35,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-16 12:47:35,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-16 12:47:35,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:35,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-16 12:47:35,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states 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 12:47:35,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:35,236 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:35,236 INFO L175 Difference]: Start difference. First operand has 218 places, 308 transitions, 1259 flow. Second operand 6 states and 962 transitions. [2022-11-16 12:47:35,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 523 transitions, 3153 flow [2022-11-16 12:47:35,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 523 transitions, 3135 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 12:47:35,269 INFO L231 Difference]: Finished difference. Result has 228 places, 438 transitions, 2599 flow [2022-11-16 12:47:35,269 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=1241, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2599, PETRI_PLACES=228, PETRI_TRANSITIONS=438} [2022-11-16 12:47:35,272 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 18 predicate places. [2022-11-16 12:47:35,272 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 438 transitions, 2599 flow [2022-11-16 12:47:35,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 12:47:35,273 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:35,273 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] [2022-11-16 12:47:35,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:47:35,274 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2037520121, now seen corresponding path program 1 times [2022-11-16 12:47:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:35,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876183914] [2022-11-16 12:47:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:36,602 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 12:47:36,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:36,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876183914] [2022-11-16 12:47:36,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876183914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:36,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:36,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:36,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198209572] [2022-11-16 12:47:36,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:36,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:36,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:36,606 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:47:36,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 438 transitions, 2599 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:36,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:36,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:47:36,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:39,870 INFO L130 PetriNetUnfolder]: 1672/5539 cut-off events. [2022-11-16 12:47:39,871 INFO L131 PetriNetUnfolder]: For 6159/6247 co-relation queries the response was YES. [2022-11-16 12:47:39,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15829 conditions, 5539 events. 1672/5539 cut-off events. For 6159/6247 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 45661 event pairs, 286 based on Foata normal form. 26/5419 useless extension candidates. Maximal degree in co-relation 15728. Up to 1193 conditions per place. [2022-11-16 12:47:39,931 INFO L137 encePairwiseOnDemand]: 170/207 looper letters, 621 selfloop transitions, 192 changer transitions 6/921 dead transitions. [2022-11-16 12:47:39,931 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 921 transitions, 7285 flow [2022-11-16 12:47:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:47:39,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:47:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2611 transitions. [2022-11-16 12:47:39,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6306763285024155 [2022-11-16 12:47:39,941 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2611 transitions. [2022-11-16 12:47:39,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2611 transitions. [2022-11-16 12:47:39,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:39,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2611 transitions. [2022-11-16 12:47:39,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 130.55) internal successors, (2611), 20 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states 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 12:47:39,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 207.0) internal successors, (4347), 21 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states 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 12:47:39,962 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 207.0) internal successors, (4347), 21 states have internal predecessors, (4347), 0 states have call successors, (0), 0 states 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 12:47:39,962 INFO L175 Difference]: Start difference. First operand has 228 places, 438 transitions, 2599 flow. Second operand 20 states and 2611 transitions. [2022-11-16 12:47:39,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 921 transitions, 7285 flow [2022-11-16 12:47:40,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 921 transitions, 7213 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 12:47:40,031 INFO L231 Difference]: Finished difference. Result has 263 places, 535 transitions, 4257 flow [2022-11-16 12:47:40,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=2563, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4257, PETRI_PLACES=263, PETRI_TRANSITIONS=535} [2022-11-16 12:47:40,034 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 53 predicate places. [2022-11-16 12:47:40,035 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 535 transitions, 4257 flow [2022-11-16 12:47:40,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:40,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:40,036 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] [2022-11-16 12:47:40,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:47:40,037 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:40,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:40,037 INFO L85 PathProgramCache]: Analyzing trace with hash 115484839, now seen corresponding path program 2 times [2022-11-16 12:47:40,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:40,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895597929] [2022-11-16 12:47:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:40,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:40,862 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 12:47:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:40,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895597929] [2022-11-16 12:47:40,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895597929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:40,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:40,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108986741] [2022-11-16 12:47:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:40,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:40,866 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:47:40,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 535 transitions, 4257 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:40,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:40,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:47:40,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:44,797 INFO L130 PetriNetUnfolder]: 1848/6135 cut-off events. [2022-11-16 12:47:44,797 INFO L131 PetriNetUnfolder]: For 10492/10657 co-relation queries the response was YES. [2022-11-16 12:47:44,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19666 conditions, 6135 events. 1848/6135 cut-off events. For 10492/10657 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 51214 event pairs, 277 based on Foata normal form. 48/5991 useless extension candidates. Maximal degree in co-relation 19545. Up to 2087 conditions per place. [2022-11-16 12:47:44,892 INFO L137 encePairwiseOnDemand]: 181/207 looper letters, 723 selfloop transitions, 141 changer transitions 6/972 dead transitions. [2022-11-16 12:47:44,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 972 transitions, 8885 flow [2022-11-16 12:47:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 12:47:44,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 12:47:44,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3564 transitions. [2022-11-16 12:47:44,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5937031484257871 [2022-11-16 12:47:44,905 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3564 transitions. [2022-11-16 12:47:44,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3564 transitions. [2022-11-16 12:47:44,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:44,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3564 transitions. [2022-11-16 12:47:44,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 122.89655172413794) internal successors, (3564), 29 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states 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 12:47:44,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states 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 12:47:44,933 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states 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 12:47:44,933 INFO L175 Difference]: Start difference. First operand has 263 places, 535 transitions, 4257 flow. Second operand 29 states and 3564 transitions. [2022-11-16 12:47:44,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 972 transitions, 8885 flow [2022-11-16 12:47:45,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 972 transitions, 8875 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-16 12:47:45,099 INFO L231 Difference]: Finished difference. Result has 297 places, 602 transitions, 5259 flow [2022-11-16 12:47:45,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=4247, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5259, PETRI_PLACES=297, PETRI_TRANSITIONS=602} [2022-11-16 12:47:45,102 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 87 predicate places. [2022-11-16 12:47:45,102 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 602 transitions, 5259 flow [2022-11-16 12:47:45,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:45,104 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:45,104 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:45,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:47:45,104 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:45,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1746453429, now seen corresponding path program 3 times [2022-11-16 12:47:45,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:45,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879849571] [2022-11-16 12:47:45,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:45,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:46,076 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 12:47:46,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:46,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879849571] [2022-11-16 12:47:46,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879849571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:46,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:46,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:46,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740340688] [2022-11-16 12:47:46,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:46,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:46,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:46,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:46,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:47:46,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 602 transitions, 5259 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:46,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:46,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:47:46,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:51,514 INFO L130 PetriNetUnfolder]: 2603/8767 cut-off events. [2022-11-16 12:47:51,514 INFO L131 PetriNetUnfolder]: For 21364/21561 co-relation queries the response was YES. [2022-11-16 12:47:51,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30120 conditions, 8767 events. 2603/8767 cut-off events. For 21364/21561 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 82099 event pairs, 464 based on Foata normal form. 71/8598 useless extension candidates. Maximal degree in co-relation 29989. Up to 1724 conditions per place. [2022-11-16 12:47:51,648 INFO L137 encePairwiseOnDemand]: 174/207 looper letters, 771 selfloop transitions, 305 changer transitions 6/1184 dead transitions. [2022-11-16 12:47:51,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1184 transitions, 12041 flow [2022-11-16 12:47:51,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:47:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:47:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3744 transitions. [2022-11-16 12:47:51,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6028985507246377 [2022-11-16 12:47:51,662 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3744 transitions. [2022-11-16 12:47:51,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3744 transitions. [2022-11-16 12:47:51,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:51,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3744 transitions. [2022-11-16 12:47:51,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 124.8) internal successors, (3744), 30 states have internal predecessors, (3744), 0 states have call successors, (0), 0 states 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 12:47:51,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 207.0) internal successors, (6417), 31 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states 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 12:47:51,695 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 207.0) internal successors, (6417), 31 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states 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 12:47:51,695 INFO L175 Difference]: Start difference. First operand has 297 places, 602 transitions, 5259 flow. Second operand 30 states and 3744 transitions. [2022-11-16 12:47:51,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1184 transitions, 12041 flow [2022-11-16 12:47:51,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1184 transitions, 11961 flow, removed 38 selfloop flow, removed 2 redundant places. [2022-11-16 12:47:51,955 INFO L231 Difference]: Finished difference. Result has 341 places, 739 transitions, 8336 flow [2022-11-16 12:47:51,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=5209, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8336, PETRI_PLACES=341, PETRI_TRANSITIONS=739} [2022-11-16 12:47:51,957 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 131 predicate places. [2022-11-16 12:47:51,957 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 739 transitions, 8336 flow [2022-11-16 12:47:51,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:51,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:51,958 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] [2022-11-16 12:47:51,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:47:51,959 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:51,960 INFO L85 PathProgramCache]: Analyzing trace with hash -345210710, now seen corresponding path program 1 times [2022-11-16 12:47:51,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:51,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341531382] [2022-11-16 12:47:51,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:51,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:53,000 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 12:47:53,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:53,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341531382] [2022-11-16 12:47:53,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341531382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:53,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:53,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753102298] [2022-11-16 12:47:53,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:53,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:53,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:53,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:53,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:53,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 207 [2022-11-16 12:47:53,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 739 transitions, 8336 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:53,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:53,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 207 [2022-11-16 12:47:53,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:47:57,212 INFO L130 PetriNetUnfolder]: 2692/8898 cut-off events. [2022-11-16 12:47:57,212 INFO L131 PetriNetUnfolder]: For 33279/33440 co-relation queries the response was YES. [2022-11-16 12:47:57,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33372 conditions, 8898 events. 2692/8898 cut-off events. For 33279/33440 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 83094 event pairs, 533 based on Foata normal form. 55/8684 useless extension candidates. Maximal degree in co-relation 33292. Up to 4333 conditions per place. [2022-11-16 12:47:57,336 INFO L137 encePairwiseOnDemand]: 187/207 looper letters, 694 selfloop transitions, 188 changer transitions 2/983 dead transitions. [2022-11-16 12:47:57,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 983 transitions, 12435 flow [2022-11-16 12:47:57,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:47:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 12:47:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2848 transitions. [2022-11-16 12:47:57,342 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573268921095008 [2022-11-16 12:47:57,342 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2848 transitions. [2022-11-16 12:47:57,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2848 transitions. [2022-11-16 12:47:57,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:47:57,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2848 transitions. [2022-11-16 12:47:57,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 118.66666666666667) internal successors, (2848), 24 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states 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 12:47:57,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 207.0) internal successors, (5175), 25 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states 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 12:47:57,360 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 207.0) internal successors, (5175), 25 states have internal predecessors, (5175), 0 states have call successors, (0), 0 states 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 12:47:57,360 INFO L175 Difference]: Start difference. First operand has 341 places, 739 transitions, 8336 flow. Second operand 24 states and 2848 transitions. [2022-11-16 12:47:57,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 983 transitions, 12435 flow [2022-11-16 12:47:57,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 983 transitions, 12317 flow, removed 39 selfloop flow, removed 10 redundant places. [2022-11-16 12:47:57,672 INFO L231 Difference]: Finished difference. Result has 359 places, 781 transitions, 9193 flow [2022-11-16 12:47:57,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=8218, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=739, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=9193, PETRI_PLACES=359, PETRI_TRANSITIONS=781} [2022-11-16 12:47:57,674 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 149 predicate places. [2022-11-16 12:47:57,675 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 781 transitions, 9193 flow [2022-11-16 12:47:57,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:57,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:47:57,676 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] [2022-11-16 12:47:57,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:47:57,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:47:57,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:47:57,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2141313003, now seen corresponding path program 4 times [2022-11-16 12:47:57,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:47:57,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666333104] [2022-11-16 12:47:57,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:47:57,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:47:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:47:58,549 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 12:47:58,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:47:58,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666333104] [2022-11-16 12:47:58,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666333104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:47:58,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:47:58,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:47:58,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671476711] [2022-11-16 12:47:58,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:47:58,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:47:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:47:58,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:47:58,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:47:58,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:47:58,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 781 transitions, 9193 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:47:58,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:47:58,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:47:58,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:48:04,634 INFO L130 PetriNetUnfolder]: 3053/10347 cut-off events. [2022-11-16 12:48:04,634 INFO L131 PetriNetUnfolder]: For 47042/47331 co-relation queries the response was YES. [2022-11-16 12:48:04,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41171 conditions, 10347 events. 3053/10347 cut-off events. For 47042/47331 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 101612 event pairs, 554 based on Foata normal form. 110/10186 useless extension candidates. Maximal degree in co-relation 41087. Up to 2020 conditions per place. [2022-11-16 12:48:04,771 INFO L137 encePairwiseOnDemand]: 174/207 looper letters, 849 selfloop transitions, 355 changer transitions 6/1315 dead transitions. [2022-11-16 12:48:04,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1315 transitions, 16436 flow [2022-11-16 12:48:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 12:48:04,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-16 12:48:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3858 transitions. [2022-11-16 12:48:04,778 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6012155212716223 [2022-11-16 12:48:04,778 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3858 transitions. [2022-11-16 12:48:04,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3858 transitions. [2022-11-16 12:48:04,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:48:04,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3858 transitions. [2022-11-16 12:48:04,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 124.45161290322581) internal successors, (3858), 31 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states 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 12:48:04,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states 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 12:48:04,799 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 0 states have call successors, (0), 0 states 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 12:48:04,799 INFO L175 Difference]: Start difference. First operand has 359 places, 781 transitions, 9193 flow. Second operand 31 states and 3858 transitions. [2022-11-16 12:48:04,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1315 transitions, 16436 flow [2022-11-16 12:48:05,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 1315 transitions, 16293 flow, removed 17 selfloop flow, removed 12 redundant places. [2022-11-16 12:48:05,254 INFO L231 Difference]: Finished difference. Result has 390 places, 876 transitions, 12247 flow [2022-11-16 12:48:05,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=9078, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=12247, PETRI_PLACES=390, PETRI_TRANSITIONS=876} [2022-11-16 12:48:05,256 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 180 predicate places. [2022-11-16 12:48:05,256 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 876 transitions, 12247 flow [2022-11-16 12:48:05,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:05,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:48:05,257 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] [2022-11-16 12:48:05,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:48:05,257 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:48:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash 454812119, now seen corresponding path program 5 times [2022-11-16 12:48:05,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:05,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662120912] [2022-11-16 12:48:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:05,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:06,205 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 12:48:06,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:06,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662120912] [2022-11-16 12:48:06,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662120912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:06,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:06,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:48:06,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202250618] [2022-11-16 12:48:06,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:06,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:48:06,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:06,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:48:06,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:06,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:48:06,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 876 transitions, 12247 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:06,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:48:06,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:48:06,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:48:13,372 INFO L130 PetriNetUnfolder]: 4172/14216 cut-off events. [2022-11-16 12:48:13,372 INFO L131 PetriNetUnfolder]: For 82474/82923 co-relation queries the response was YES. [2022-11-16 12:48:13,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59366 conditions, 14216 events. 4172/14216 cut-off events. For 82474/82923 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 151901 event pairs, 915 based on Foata normal form. 135/13995 useless extension candidates. Maximal degree in co-relation 59269. Up to 4305 conditions per place. [2022-11-16 12:48:13,598 INFO L137 encePairwiseOnDemand]: 175/207 looper letters, 744 selfloop transitions, 491 changer transitions 3/1343 dead transitions. [2022-11-16 12:48:13,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1343 transitions, 20603 flow [2022-11-16 12:48:13,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:48:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:48:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2588 transitions. [2022-11-16 12:48:13,606 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5953531170922475 [2022-11-16 12:48:13,607 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2588 transitions. [2022-11-16 12:48:13,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2588 transitions. [2022-11-16 12:48:13,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:48:13,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2588 transitions. [2022-11-16 12:48:13,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 123.23809523809524) internal successors, (2588), 21 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states 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 12:48:13,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 207.0) internal successors, (4554), 22 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states 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 12:48:13,623 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 207.0) internal successors, (4554), 22 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states 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 12:48:13,623 INFO L175 Difference]: Start difference. First operand has 390 places, 876 transitions, 12247 flow. Second operand 21 states and 2588 transitions. [2022-11-16 12:48:13,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1343 transitions, 20603 flow [2022-11-16 12:48:14,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1343 transitions, 20445 flow, removed 5 selfloop flow, removed 16 redundant places. [2022-11-16 12:48:14,520 INFO L231 Difference]: Finished difference. Result has 408 places, 1052 transitions, 17608 flow [2022-11-16 12:48:14,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=12145, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=876, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=315, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=17608, PETRI_PLACES=408, PETRI_TRANSITIONS=1052} [2022-11-16 12:48:14,522 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 198 predicate places. [2022-11-16 12:48:14,522 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 1052 transitions, 17608 flow [2022-11-16 12:48:14,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:14,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:48:14,522 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] [2022-11-16 12:48:14,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:48:14,523 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:48:14,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:14,523 INFO L85 PathProgramCache]: Analyzing trace with hash -830576203, now seen corresponding path program 6 times [2022-11-16 12:48:14,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:14,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766092166] [2022-11-16 12:48:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:14,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:15,218 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 12:48:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:15,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766092166] [2022-11-16 12:48:15,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766092166] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:15,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:15,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:48:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994997014] [2022-11-16 12:48:15,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:15,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:48:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:48:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:15,222 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:48:15,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 1052 transitions, 17608 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:15,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:48:15,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:48:15,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:48:26,464 INFO L130 PetriNetUnfolder]: 5959/20274 cut-off events. [2022-11-16 12:48:26,465 INFO L131 PetriNetUnfolder]: For 145855/146437 co-relation queries the response was YES. [2022-11-16 12:48:26,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88579 conditions, 20274 events. 5959/20274 cut-off events. For 145855/146437 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 234502 event pairs, 1069 based on Foata normal form. 203/19988 useless extension candidates. Maximal degree in co-relation 88469. Up to 4475 conditions per place. [2022-11-16 12:48:26,855 INFO L137 encePairwiseOnDemand]: 174/207 looper letters, 944 selfloop transitions, 711 changer transitions 4/1764 dead transitions. [2022-11-16 12:48:26,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1764 transitions, 30530 flow [2022-11-16 12:48:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 12:48:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-11-16 12:48:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 3385 transitions. [2022-11-16 12:48:26,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6056539631418858 [2022-11-16 12:48:26,871 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 3385 transitions. [2022-11-16 12:48:26,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 3385 transitions. [2022-11-16 12:48:26,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:48:26,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 3385 transitions. [2022-11-16 12:48:26,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 125.37037037037037) internal successors, (3385), 27 states have internal predecessors, (3385), 0 states have call successors, (0), 0 states 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 12:48:26,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 207.0) internal successors, (5796), 28 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states 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 12:48:26,899 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 207.0) internal successors, (5796), 28 states have internal predecessors, (5796), 0 states have call successors, (0), 0 states 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 12:48:26,899 INFO L175 Difference]: Start difference. First operand has 408 places, 1052 transitions, 17608 flow. Second operand 27 states and 3385 transitions. [2022-11-16 12:48:26,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1764 transitions, 30530 flow [2022-11-16 12:48:28,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1764 transitions, 30438 flow, removed 44 selfloop flow, removed 2 redundant places. [2022-11-16 12:48:28,994 INFO L231 Difference]: Finished difference. Result has 442 places, 1277 transitions, 25720 flow [2022-11-16 12:48:28,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=17562, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=25720, PETRI_PLACES=442, PETRI_TRANSITIONS=1277} [2022-11-16 12:48:28,995 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 232 predicate places. [2022-11-16 12:48:28,996 INFO L495 AbstractCegarLoop]: Abstraction has has 442 places, 1277 transitions, 25720 flow [2022-11-16 12:48:28,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:28,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:48:28,997 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:28,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:48:28,997 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:48:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash 871863925, now seen corresponding path program 7 times [2022-11-16 12:48:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:28,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229530013] [2022-11-16 12:48:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:28,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:29,711 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 12:48:29,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:29,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229530013] [2022-11-16 12:48:29,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229530013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:29,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:29,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:48:29,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561152216] [2022-11-16 12:48:29,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:29,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:48:29,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:29,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:48:29,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:29,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:48:29,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 1277 transitions, 25720 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:29,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:48:29,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:48:29,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:48:44,268 INFO L130 PetriNetUnfolder]: 6818/23092 cut-off events. [2022-11-16 12:48:44,268 INFO L131 PetriNetUnfolder]: For 215110/215849 co-relation queries the response was YES. [2022-11-16 12:48:44,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107447 conditions, 23092 events. 6818/23092 cut-off events. For 215110/215849 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 274307 event pairs, 1247 based on Foata normal form. 263/22785 useless extension candidates. Maximal degree in co-relation 107323. Up to 5448 conditions per place. [2022-11-16 12:48:44,933 INFO L137 encePairwiseOnDemand]: 174/207 looper letters, 1053 selfloop transitions, 739 changer transitions 5/1902 dead transitions. [2022-11-16 12:48:44,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 1902 transitions, 37156 flow [2022-11-16 12:48:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 12:48:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 12:48:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3743 transitions. [2022-11-16 12:48:44,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6027375201288244 [2022-11-16 12:48:44,941 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3743 transitions. [2022-11-16 12:48:44,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3743 transitions. [2022-11-16 12:48:44,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:48:44,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3743 transitions. [2022-11-16 12:48:44,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 124.76666666666667) internal successors, (3743), 30 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states 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 12:48:44,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 207.0) internal successors, (6417), 31 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states 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 12:48:44,962 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 207.0) internal successors, (6417), 31 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states 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 12:48:44,963 INFO L175 Difference]: Start difference. First operand has 442 places, 1277 transitions, 25720 flow. Second operand 30 states and 3743 transitions. [2022-11-16 12:48:44,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 1902 transitions, 37156 flow [2022-11-16 12:48:48,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 1902 transitions, 36985 flow, removed 22 selfloop flow, removed 15 redundant places. [2022-11-16 12:48:48,416 INFO L231 Difference]: Finished difference. Result has 470 places, 1425 transitions, 32431 flow [2022-11-16 12:48:48,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=25561, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=596, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=32431, PETRI_PLACES=470, PETRI_TRANSITIONS=1425} [2022-11-16 12:48:48,417 INFO L288 CegarLoopForPetriNet]: 210 programPoint places, 260 predicate places. [2022-11-16 12:48:48,417 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 1425 transitions, 32431 flow [2022-11-16 12:48:48,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:48,418 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:48:48,418 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] [2022-11-16 12:48:48,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:48:48,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 12:48:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:48:48,418 INFO L85 PathProgramCache]: Analyzing trace with hash 975783319, now seen corresponding path program 8 times [2022-11-16 12:48:48,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:48:48,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433129657] [2022-11-16 12:48:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:48:48,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:48:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:48:49,177 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 12:48:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:48:49,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433129657] [2022-11-16 12:48:49,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433129657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:48:49,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:48:49,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:48:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42526677] [2022-11-16 12:48:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:48:49,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:48:49,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:48:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:48:49,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:48:49,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 207 [2022-11-16 12:48:49,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 1425 transitions, 32431 flow. Second operand has 13 states, 13 states have (on average 112.07692307692308) internal successors, (1457), 13 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:48:49,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:48:49,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 207 [2022-11-16 12:48:49,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:49:08,009 INFO L130 PetriNetUnfolder]: 8195/28017 cut-off events. [2022-11-16 12:49:08,009 INFO L131 PetriNetUnfolder]: For 319316/320348 co-relation queries the response was YES. [2022-11-16 12:49:08,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135569 conditions, 28017 events. 8195/28017 cut-off events. For 319316/320348 co-relation queries the response was YES. Maximal size of possible extension queue 898. Compared 346168 event pairs, 1635 based on Foata normal form. 378/27726 useless extension candidates. Maximal degree in co-relation 135425. Up to 6012 conditions per place. [2022-11-16 12:49:08,679 INFO L137 encePairwiseOnDemand]: 170/207 looper letters, 916 selfloop transitions, 983 changer transitions 6/2010 dead transitions. [2022-11-16 12:49:08,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 2010 transitions, 45003 flow [2022-11-16 12:49:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:49:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 12:49:08,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2721 transitions. [2022-11-16 12:49:08,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6259489302967564 [2022-11-16 12:49:08,687 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2721 transitions. [2022-11-16 12:49:08,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2721 transitions. [2022-11-16 12:49:08,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:49:08,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2721 transitions. [2022-11-16 12:49:08,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.57142857142858) internal successors, (2721), 21 states have internal predecessors, (2721), 0 states have call successors, (0), 0 states 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 12:49:08,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 207.0) internal successors, (4554), 22 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states 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 12:49:08,701 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 207.0) internal successors, (4554), 22 states have internal predecessors, (4554), 0 states have call successors, (0), 0 states 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 12:49:08,701 INFO L175 Difference]: Start difference. First operand has 470 places, 1425 transitions, 32431 flow. Second operand 21 states and 2721 transitions. [2022-11-16 12:49:08,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 2010 transitions, 45003 flow