./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 13:16:37,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 13:16:37,961 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-01 13:16:37,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 13:16:37,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 13:16:37,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 13:16:37,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 13:16:37,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 13:16:37,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 13:16:37,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 13:16:37,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 13:16:37,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 13:16:37,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 13:16:37,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 13:16:37,989 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:16:37,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 13:16:37,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:16:37,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 13:16:37,990 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-12-01 13:16:38,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 13:16:38,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 13:16:38,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 13:16:38,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 13:16:38,220 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 13:16:38,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-12-01 13:16:40,859 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/data/9210927fb/b4070a07152f4049b7a214a7fc2bed60/FLAG469056aff [2024-12-01 13:16:41,090 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 13:16:41,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-12-01 13:16:41,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/data/9210927fb/b4070a07152f4049b7a214a7fc2bed60/FLAG469056aff [2024-12-01 13:16:41,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/data/9210927fb/b4070a07152f4049b7a214a7fc2bed60 [2024-12-01 13:16:41,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 13:16:41,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 13:16:41,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 13:16:41,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 13:16:41,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 13:16:41,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a57ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41, skipping insertion in model container [2024-12-01 13:16:41,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,439 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 13:16:41,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:16:41,759 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 13:16:41,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 13:16:41,842 INFO L204 MainTranslator]: Completed translation [2024-12-01 13:16:41,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41 WrapperNode [2024-12-01 13:16:41,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 13:16:41,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 13:16:41,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 13:16:41,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 13:16:41,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,886 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-12-01 13:16:41,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 13:16:41,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 13:16:41,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 13:16:41,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 13:16:41,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,909 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 13:16:41,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 13:16:41,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 13:16:41,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 13:16:41,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (1/1) ... [2024-12-01 13:16:41,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 13:16:41,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:16:41,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 13:16:41,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 13:16:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-01 13:16:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-01 13:16:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-01 13:16:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 13:16:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 13:16:41,971 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 13:16:42,072 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 13:16:42,074 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 13:16:42,352 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 13:16:42,352 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 13:16:42,374 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 13:16:42,374 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 13:16:42,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:16:42 BoogieIcfgContainer [2024-12-01 13:16:42,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 13:16:42,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 13:16:42,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 13:16:42,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 13:16:42,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 01:16:41" (1/3) ... [2024-12-01 13:16:42,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164e2701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:16:42, skipping insertion in model container [2024-12-01 13:16:42,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 01:16:41" (2/3) ... [2024-12-01 13:16:42,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164e2701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 01:16:42, skipping insertion in model container [2024-12-01 13:16:42,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 01:16:42" (3/3) ... [2024-12-01 13:16:42,382 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-12-01 13:16:42,397 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 13:16:42,398 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_06-tricky_address1.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-12-01 13:16:42,399 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 13:16:42,458 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-01 13:16:42,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 161 transitions, 326 flow [2024-12-01 13:16:42,548 INFO L124 PetriNetUnfolderBase]: 4/160 cut-off events. [2024-12-01 13:16:42,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 13:16:42,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 160 events. 4/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-12-01 13:16:42,556 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 161 transitions, 326 flow [2024-12-01 13:16:42,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 160 transitions, 323 flow [2024-12-01 13:16:42,568 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 13:16:42,577 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@42c06381, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 13:16:42,577 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-12-01 13:16:42,603 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 13:16:42,603 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-12-01 13:16:42,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 13:16:42,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:42,604 INFO L206 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] [2024-12-01 13:16:42,605 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:42,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:42,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1129090698, now seen corresponding path program 1 times [2024-12-01 13:16:42,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938866945] [2024-12-01 13:16:42,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:42,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:42,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:42,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:42,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938866945] [2024-12-01 13:16:42,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938866945] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:42,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:42,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 13:16:42,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683948261] [2024-12-01 13:16:42,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:42,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 13:16:42,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:42,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 13:16:42,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 13:16:42,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 161 [2024-12-01 13:16:42,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 160 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:42,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:42,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 161 [2024-12-01 13:16:42,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:43,055 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-12-01 13:16:43,055 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-01 13:16:43,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 321 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2024-12-01 13:16:43,058 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2024-12-01 13:16:43,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2024-12-01 13:16:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 13:16:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 13:16:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-12-01 13:16:43,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.94824016563147 [2024-12-01 13:16:43,071 INFO L175 Difference]: Start difference. First operand has 160 places, 160 transitions, 323 flow. Second operand 3 states and 458 transitions. [2024-12-01 13:16:43,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2024-12-01 13:16:43,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:16:43,080 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2024-12-01 13:16:43,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-12-01 13:16:43,085 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2024-12-01 13:16:43,085 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2024-12-01 13:16:43,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:43,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:43,086 INFO L206 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] [2024-12-01 13:16:43,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 13:16:43,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:43,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:43,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1376573233, now seen corresponding path program 1 times [2024-12-01 13:16:43,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:43,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64975744] [2024-12-01 13:16:43,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:43,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64975744] [2024-12-01 13:16:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64975744] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:16:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525961110] [2024-12-01 13:16:43,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:43,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:43,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:16:43,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:16:43,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 13:16:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:43,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 13:16:43,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:16:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:43,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:16:43,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:43,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525961110] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:16:43,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:16:43,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-12-01 13:16:43,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667552372] [2024-12-01 13:16:43,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:16:43,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:16:43,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:43,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:16:43,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:16:43,506 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-12-01 13:16:43,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:43,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:43,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-12-01 13:16:43,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:43,669 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2024-12-01 13:16:43,669 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-01 13:16:43,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2024-12-01 13:16:43,670 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-12-01 13:16:43,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2024-12-01 13:16:43,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 13:16:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-12-01 13:16:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-12-01 13:16:43,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.911663216011042 [2024-12-01 13:16:43,676 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2024-12-01 13:16:43,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2024-12-01 13:16:43,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 13:16:43,681 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2024-12-01 13:16:43,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2024-12-01 13:16:43,682 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2024-12-01 13:16:43,682 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2024-12-01 13:16:43,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:43,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:43,683 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:43,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 13:16:43,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:43,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:43,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:43,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1016235601, now seen corresponding path program 2 times [2024-12-01 13:16:43,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:43,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505565341] [2024-12-01 13:16:43,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:16:43,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:43,921 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:16:43,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:16:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-01 13:16:44,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:44,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505565341] [2024-12-01 13:16:44,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505565341] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:44,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:44,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:16:44,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779121814] [2024-12-01 13:16:44,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:44,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:16:44,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:44,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:16:44,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:16:45,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 161 [2024-12-01 13:16:45,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:45,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:45,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 161 [2024-12-01 13:16:45,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:45,327 INFO L124 PetriNetUnfolderBase]: 103/540 cut-off events. [2024-12-01 13:16:45,327 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-01 13:16:45,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 540 events. 103/540 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2330 event pairs, 40 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 693. Up to 184 conditions per place. [2024-12-01 13:16:45,330 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 31 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2024-12-01 13:16:45,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 192 transitions, 538 flow [2024-12-01 13:16:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:16:45,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:16:45,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 858 transitions. [2024-12-01 13:16:45,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8881987577639752 [2024-12-01 13:16:45,334 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 858 transitions. [2024-12-01 13:16:45,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 192 transitions, 538 flow [2024-12-01 13:16:45,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 192 transitions, 532 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-12-01 13:16:45,339 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 518 flow [2024-12-01 13:16:45,339 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-12-01 13:16:45,340 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 20 predicate places. [2024-12-01 13:16:45,340 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 518 flow [2024-12-01 13:16:45,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:45,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:45,341 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:45,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 13:16:45,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:45,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1659974846, now seen corresponding path program 1 times [2024-12-01 13:16:45,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622795317] [2024-12-01 13:16:45,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:45,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:45,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:45,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622795317] [2024-12-01 13:16:45,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622795317] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:16:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739729548] [2024-12-01 13:16:45,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:45,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:45,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:16:45,548 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:16:45,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 13:16:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:45,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-01 13:16:45,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:16:45,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:45,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:16:45,797 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:45,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739729548] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:16:45,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:16:45,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-12-01 13:16:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393124857] [2024-12-01 13:16:45,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:16:45,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-01 13:16:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:45,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-01 13:16:45,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-12-01 13:16:45,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-12-01 13:16:45,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 518 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:45,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:45,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-12-01 13:16:45,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:46,057 INFO L124 PetriNetUnfolderBase]: 47/408 cut-off events. [2024-12-01 13:16:46,057 INFO L125 PetriNetUnfolderBase]: For 54/57 co-relation queries the response was YES. [2024-12-01 13:16:46,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 408 events. 47/408 cut-off events. For 54/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1240 event pairs, 11 based on Foata normal form. 4/396 useless extension candidates. Maximal degree in co-relation 506. Up to 51 conditions per place. [2024-12-01 13:16:46,060 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 18 selfloop transitions, 21 changer transitions 0/202 dead transitions. [2024-12-01 13:16:46,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 202 transitions, 684 flow [2024-12-01 13:16:46,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:16:46,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-01 13:16:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2024-12-01 13:16:46,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9071280686187518 [2024-12-01 13:16:46,065 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 518 flow. Second operand 21 states and 3067 transitions. [2024-12-01 13:16:46,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 202 transitions, 684 flow [2024-12-01 13:16:46,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 202 transitions, 684 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 13:16:46,070 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 648 flow [2024-12-01 13:16:46,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=648, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2024-12-01 13:16:46,071 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 45 predicate places. [2024-12-01 13:16:46,071 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 648 flow [2024-12-01 13:16:46,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:46,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:46,072 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:46,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 13:16:46,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:46,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:46,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1722331522, now seen corresponding path program 2 times [2024-12-01 13:16:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199520711] [2024-12-01 13:16:46,274 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:16:46,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:46,297 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:16:46,297 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:16:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-01 13:16:46,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:46,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199520711] [2024-12-01 13:16:46,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199520711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:46,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:46,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:16:46,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856248657] [2024-12-01 13:16:46,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:46,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:16:46,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:46,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:16:46,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:16:47,137 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 161 [2024-12-01 13:16:47,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 648 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:47,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:47,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 161 [2024-12-01 13:16:47,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:47,383 INFO L124 PetriNetUnfolderBase]: 223/892 cut-off events. [2024-12-01 13:16:47,383 INFO L125 PetriNetUnfolderBase]: For 189/195 co-relation queries the response was YES. [2024-12-01 13:16:47,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1763 conditions, 892 events. 223/892 cut-off events. For 189/195 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4681 event pairs, 82 based on Foata normal form. 5/839 useless extension candidates. Maximal degree in co-relation 1566. Up to 407 conditions per place. [2024-12-01 13:16:47,388 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 53 selfloop transitions, 39 changer transitions 5/242 dead transitions. [2024-12-01 13:16:47,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 242 transitions, 962 flow [2024-12-01 13:16:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:16:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:16:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2024-12-01 13:16:47,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8737060041407867 [2024-12-01 13:16:47,390 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 648 flow. Second operand 6 states and 844 transitions. [2024-12-01 13:16:47,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 242 transitions, 962 flow [2024-12-01 13:16:47,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 242 transitions, 938 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-12-01 13:16:47,397 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 912 flow [2024-12-01 13:16:47,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=912, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2024-12-01 13:16:47,398 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 49 predicate places. [2024-12-01 13:16:47,398 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 912 flow [2024-12-01 13:16:47,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:47,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:47,399 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:47,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 13:16:47,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:47,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:47,400 INFO L85 PathProgramCache]: Analyzing trace with hash -633472428, now seen corresponding path program 1 times [2024-12-01 13:16:47,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:47,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751548018] [2024-12-01 13:16:47,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:47,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:47,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751548018] [2024-12-01 13:16:47,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751548018] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:16:47,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771151320] [2024-12-01 13:16:47,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:47,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:47,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:16:47,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:16:47,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 13:16:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:47,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-01 13:16:47,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:16:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:47,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:16:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:16:48,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771151320] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 13:16:48,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 13:16:48,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-12-01 13:16:48,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14138629] [2024-12-01 13:16:48,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 13:16:48,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-01 13:16:48,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:48,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-01 13:16:48,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-12-01 13:16:48,170 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 161 [2024-12-01 13:16:48,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 912 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:48,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:48,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 161 [2024-12-01 13:16:48,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:48,607 INFO L124 PetriNetUnfolderBase]: 117/655 cut-off events. [2024-12-01 13:16:48,607 INFO L125 PetriNetUnfolderBase]: For 327/332 co-relation queries the response was YES. [2024-12-01 13:16:48,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1391 conditions, 655 events. 117/655 cut-off events. For 327/332 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2894 event pairs, 15 based on Foata normal form. 3/630 useless extension candidates. Maximal degree in co-relation 1115. Up to 118 conditions per place. [2024-12-01 13:16:48,611 INFO L140 encePairwiseOnDemand]: 155/161 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-12-01 13:16:48,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 250 transitions, 1136 flow [2024-12-01 13:16:48,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-12-01 13:16:48,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-12-01 13:16:48,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2024-12-01 13:16:48,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9055900621118013 [2024-12-01 13:16:48,620 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 912 flow. Second operand 30 states and 4374 transitions. [2024-12-01 13:16:48,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 250 transitions, 1136 flow [2024-12-01 13:16:48,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 250 transitions, 1104 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-12-01 13:16:48,628 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 1032 flow [2024-12-01 13:16:48,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1032, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2024-12-01 13:16:48,629 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 81 predicate places. [2024-12-01 13:16:48,629 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 1032 flow [2024-12-01 13:16:48,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:48,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:48,631 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:48,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 13:16:48,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:16:48,832 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:48,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1687787697, now seen corresponding path program 2 times [2024-12-01 13:16:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:48,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557929851] [2024-12-01 13:16:48,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:16:48,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:48,855 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:16:48,855 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:16:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:16:49,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:49,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557929851] [2024-12-01 13:16:49,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557929851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:49,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:49,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:16:49,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666096158] [2024-12-01 13:16:49,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:49,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:16:49,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:49,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:16:49,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:16:49,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 161 [2024-12-01 13:16:49,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 1032 flow. Second operand has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:49,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:49,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 161 [2024-12-01 13:16:49,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:49,546 INFO L124 PetriNetUnfolderBase]: 212/925 cut-off events. [2024-12-01 13:16:49,546 INFO L125 PetriNetUnfolderBase]: For 576/620 co-relation queries the response was YES. [2024-12-01 13:16:49,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 925 events. 212/925 cut-off events. For 576/620 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4921 event pairs, 40 based on Foata normal form. 1/908 useless extension candidates. Maximal degree in co-relation 1908. Up to 338 conditions per place. [2024-12-01 13:16:49,551 INFO L140 encePairwiseOnDemand]: 150/161 looper letters, 72 selfloop transitions, 40 changer transitions 0/282 dead transitions. [2024-12-01 13:16:49,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 282 transitions, 1440 flow [2024-12-01 13:16:49,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:16:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:16:49,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2024-12-01 13:16:49,554 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9037267080745341 [2024-12-01 13:16:49,554 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 1032 flow. Second operand 6 states and 873 transitions. [2024-12-01 13:16:49,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 282 transitions, 1440 flow [2024-12-01 13:16:49,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 282 transitions, 1394 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-12-01 13:16:49,563 INFO L231 Difference]: Finished difference. Result has 233 places, 274 transitions, 1354 flow [2024-12-01 13:16:49,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=986, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1354, PETRI_PLACES=233, PETRI_TRANSITIONS=274} [2024-12-01 13:16:49,564 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 73 predicate places. [2024-12-01 13:16:49,564 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 274 transitions, 1354 flow [2024-12-01 13:16:49,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.33333333333334) internal successors, (830), 6 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:49,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:49,565 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:49,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 13:16:49,565 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:49,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 82185300, now seen corresponding path program 1 times [2024-12-01 13:16:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:49,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778840582] [2024-12-01 13:16:49,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:16:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:16:50,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:16:50,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778840582] [2024-12-01 13:16:50,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778840582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:16:50,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:16:50,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 13:16:50,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617616963] [2024-12-01 13:16:50,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:16:50,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 13:16:50,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:16:50,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 13:16:50,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 13:16:50,152 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-12-01 13:16:50,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 274 transitions, 1354 flow. Second operand has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:50,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:16:50,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-12-01 13:16:50,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:16:50,540 INFO L124 PetriNetUnfolderBase]: 361/1326 cut-off events. [2024-12-01 13:16:50,540 INFO L125 PetriNetUnfolderBase]: For 1444/1472 co-relation queries the response was YES. [2024-12-01 13:16:50,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3665 conditions, 1326 events. 361/1326 cut-off events. For 1444/1472 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7954 event pairs, 87 based on Foata normal form. 2/1292 useless extension candidates. Maximal degree in co-relation 3405. Up to 610 conditions per place. [2024-12-01 13:16:50,546 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 100 selfloop transitions, 64 changer transitions 10/335 dead transitions. [2024-12-01 13:16:50,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 335 transitions, 2042 flow [2024-12-01 13:16:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 13:16:50,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 13:16:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 859 transitions. [2024-12-01 13:16:50,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8892339544513458 [2024-12-01 13:16:50,549 INFO L175 Difference]: Start difference. First operand has 233 places, 274 transitions, 1354 flow. Second operand 6 states and 859 transitions. [2024-12-01 13:16:50,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 335 transitions, 2042 flow [2024-12-01 13:16:50,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 335 transitions, 2024 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-12-01 13:16:50,560 INFO L231 Difference]: Finished difference. Result has 243 places, 321 transitions, 1922 flow [2024-12-01 13:16:50,561 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1922, PETRI_PLACES=243, PETRI_TRANSITIONS=321} [2024-12-01 13:16:50,561 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 83 predicate places. [2024-12-01 13:16:50,561 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 321 transitions, 1922 flow [2024-12-01 13:16:50,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.33333333333334) internal successors, (800), 6 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:16:50,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:16:50,562 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:16:50,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 13:16:50,562 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:16:50,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:16:50,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1223242866, now seen corresponding path program 1 times [2024-12-01 13:16:50,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:16:50,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829491972] [2024-12-01 13:16:50,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:16:50,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:16:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:17:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829491972] [2024-12-01 13:17:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829491972] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-01 13:17:04,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485290845] [2024-12-01 13:17:04,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:04,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-01 13:17:04,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:04,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-01 13:17:04,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-12-01 13:17:08,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 161 [2024-12-01 13:17:08,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 321 transitions, 1922 flow. Second operand has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:08,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:08,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 161 [2024-12-01 13:17:08,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:10,767 INFO L124 PetriNetUnfolderBase]: 566/1804 cut-off events. [2024-12-01 13:17:10,767 INFO L125 PetriNetUnfolderBase]: For 3423/3503 co-relation queries the response was YES. [2024-12-01 13:17:10,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5866 conditions, 1804 events. 566/1804 cut-off events. For 3423/3503 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11264 event pairs, 32 based on Foata normal form. 37/1829 useless extension candidates. Maximal degree in co-relation 5589. Up to 562 conditions per place. [2024-12-01 13:17:10,783 INFO L140 encePairwiseOnDemand]: 131/161 looper letters, 227 selfloop transitions, 87 changer transitions 73/530 dead transitions. [2024-12-01 13:17:10,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 530 transitions, 4108 flow [2024-12-01 13:17:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-01 13:17:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-12-01 13:17:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2892 transitions. [2024-12-01 13:17:10,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-12-01 13:17:10,789 INFO L175 Difference]: Start difference. First operand has 243 places, 321 transitions, 1922 flow. Second operand 24 states and 2892 transitions. [2024-12-01 13:17:10,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 530 transitions, 4108 flow [2024-12-01 13:17:10,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 530 transitions, 4022 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-12-01 13:17:10,826 INFO L231 Difference]: Finished difference. Result has 274 places, 358 transitions, 2488 flow [2024-12-01 13:17:10,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1848, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2488, PETRI_PLACES=274, PETRI_TRANSITIONS=358} [2024-12-01 13:17:10,827 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 114 predicate places. [2024-12-01 13:17:10,827 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 358 transitions, 2488 flow [2024-12-01 13:17:10,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 113.94117647058823) internal successors, (1937), 17 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:10,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:10,829 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:10,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 13:17:10,829 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:10,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:10,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1348389900, now seen corresponding path program 2 times [2024-12-01 13:17:10,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:10,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140770775] [2024-12-01 13:17:10,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:17:10,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:10,875 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:17:10,876 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:17:15,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:15,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140770775] [2024-12-01 13:17:15,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140770775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:15,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:15,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-01 13:17:15,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869389984] [2024-12-01 13:17:15,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:15,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-01 13:17:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:15,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-01 13:17:15,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-12-01 13:17:18,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 161 [2024-12-01 13:17:18,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 358 transitions, 2488 flow. Second operand has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:18,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:18,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 161 [2024-12-01 13:17:18,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:19,321 INFO L124 PetriNetUnfolderBase]: 456/1552 cut-off events. [2024-12-01 13:17:19,321 INFO L125 PetriNetUnfolderBase]: For 4321/4450 co-relation queries the response was YES. [2024-12-01 13:17:19,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 1552 events. 456/1552 cut-off events. For 4321/4450 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9614 event pairs, 80 based on Foata normal form. 63/1598 useless extension candidates. Maximal degree in co-relation 5675. Up to 662 conditions per place. [2024-12-01 13:17:19,328 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 174 selfloop transitions, 89 changer transitions 32/441 dead transitions. [2024-12-01 13:17:19,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 441 transitions, 3707 flow [2024-12-01 13:17:19,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:17:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:17:19,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2024-12-01 13:17:19,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7923691215616682 [2024-12-01 13:17:19,331 INFO L175 Difference]: Start difference. First operand has 274 places, 358 transitions, 2488 flow. Second operand 14 states and 1786 transitions. [2024-12-01 13:17:19,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 441 transitions, 3707 flow [2024-12-01 13:17:19,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 441 transitions, 3661 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-12-01 13:17:19,357 INFO L231 Difference]: Finished difference. Result has 276 places, 362 transitions, 2698 flow [2024-12-01 13:17:19,357 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2447, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2698, PETRI_PLACES=276, PETRI_TRANSITIONS=362} [2024-12-01 13:17:19,358 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 116 predicate places. [2024-12-01 13:17:19,358 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 362 transitions, 2698 flow [2024-12-01 13:17:19,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 120.0) internal successors, (1560), 13 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:19,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:19,359 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:19,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 13:17:19,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:19,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash 563134084, now seen corresponding path program 3 times [2024-12-01 13:17:19,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:19,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228924440] [2024-12-01 13:17:19,360 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:17:19,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:19,378 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:17:19,378 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:17:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:20,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228924440] [2024-12-01 13:17:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228924440] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:17:20,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814772469] [2024-12-01 13:17:20,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:20,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:17:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:20,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:17:20,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:17:21,051 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:17:21,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 362 transitions, 2698 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:21,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:21,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:17:21,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:21,974 INFO L124 PetriNetUnfolderBase]: 780/2434 cut-off events. [2024-12-01 13:17:21,975 INFO L125 PetriNetUnfolderBase]: For 9350/9485 co-relation queries the response was YES. [2024-12-01 13:17:21,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10410 conditions, 2434 events. 780/2434 cut-off events. For 9350/9485 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 17650 event pairs, 58 based on Foata normal form. 59/2460 useless extension candidates. Maximal degree in co-relation 10120. Up to 632 conditions per place. [2024-12-01 13:17:21,990 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 348 selfloop transitions, 95 changer transitions 12/611 dead transitions. [2024-12-01 13:17:21,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 611 transitions, 6201 flow [2024-12-01 13:17:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:17:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:17:21,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1509 transitions. [2024-12-01 13:17:21,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8520609824957651 [2024-12-01 13:17:21,992 INFO L175 Difference]: Start difference. First operand has 276 places, 362 transitions, 2698 flow. Second operand 11 states and 1509 transitions. [2024-12-01 13:17:21,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 611 transitions, 6201 flow [2024-12-01 13:17:22,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 611 transitions, 6039 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-12-01 13:17:22,047 INFO L231 Difference]: Finished difference. Result has 284 places, 442 transitions, 4094 flow [2024-12-01 13:17:22,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=2616, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4094, PETRI_PLACES=284, PETRI_TRANSITIONS=442} [2024-12-01 13:17:22,047 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 124 predicate places. [2024-12-01 13:17:22,047 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 442 transitions, 4094 flow [2024-12-01 13:17:22,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:22,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:22,048 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:22,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 13:17:22,048 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:22,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:22,049 INFO L85 PathProgramCache]: Analyzing trace with hash -575987128, now seen corresponding path program 4 times [2024-12-01 13:17:22,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:22,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052215581] [2024-12-01 13:17:22,049 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:17:22,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:22,092 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:17:22,093 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:17:23,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:23,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052215581] [2024-12-01 13:17:23,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052215581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:23,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:23,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-01 13:17:23,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103664686] [2024-12-01 13:17:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:23,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:17:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:23,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:17:23,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-12-01 13:17:25,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 161 [2024-12-01 13:17:25,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 442 transitions, 4094 flow. Second operand has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:25,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:25,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 161 [2024-12-01 13:17:25,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:26,744 INFO L124 PetriNetUnfolderBase]: 860/2732 cut-off events. [2024-12-01 13:17:26,744 INFO L125 PetriNetUnfolderBase]: For 13436/13561 co-relation queries the response was YES. [2024-12-01 13:17:26,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11980 conditions, 2732 events. 860/2732 cut-off events. For 13436/13561 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20286 event pairs, 73 based on Foata normal form. 48/2755 useless extension candidates. Maximal degree in co-relation 11683. Up to 658 conditions per place. [2024-12-01 13:17:26,762 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 406 selfloop transitions, 115 changer transitions 21/691 dead transitions. [2024-12-01 13:17:26,762 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 691 transitions, 7540 flow [2024-12-01 13:17:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:17:26,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-01 13:17:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2108 transitions. [2024-12-01 13:17:26,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8183229813664596 [2024-12-01 13:17:26,765 INFO L175 Difference]: Start difference. First operand has 284 places, 442 transitions, 4094 flow. Second operand 16 states and 2108 transitions. [2024-12-01 13:17:26,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 691 transitions, 7540 flow [2024-12-01 13:17:26,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 691 transitions, 7492 flow, removed 24 selfloop flow, removed 0 redundant places. [2024-12-01 13:17:26,846 INFO L231 Difference]: Finished difference. Result has 305 places, 472 transitions, 4855 flow [2024-12-01 13:17:26,847 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4046, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4855, PETRI_PLACES=305, PETRI_TRANSITIONS=472} [2024-12-01 13:17:26,847 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 145 predicate places. [2024-12-01 13:17:26,847 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 472 transitions, 4855 flow [2024-12-01 13:17:26,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 120.8) internal successors, (1812), 15 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:26,848 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:26,848 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:26,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 13:17:26,849 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:26,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:26,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1952030626, now seen corresponding path program 5 times [2024-12-01 13:17:26,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:26,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007644181] [2024-12-01 13:17:26,849 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:17:26,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:26,947 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:17:26,947 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 13:17:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007644181] [2024-12-01 13:17:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007644181] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646995652] [2024-12-01 13:17:32,147 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:17:32,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:32,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:32,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:32,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 13:17:32,298 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:17:32,298 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:32,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-01 13:17:32,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:32,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:17:32,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:17:32,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-01 13:17:32,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-01 13:17:32,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-01 13:17:32,917 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:17:32,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:17:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:33,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:33,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:33,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:17:33,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-01 13:17:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-01 13:17:33,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:34,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-12-01 13:17:34,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2024-12-01 13:17:34,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2024-12-01 13:17:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:17:34,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646995652] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:34,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:17:34,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [31, 25] total 47 [2024-12-01 13:17:34,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957477721] [2024-12-01 13:17:34,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:34,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:17:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:34,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:17:34,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=2079, Unknown=0, NotChecked=0, Total=2256 [2024-12-01 13:17:36,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-12-01 13:17:36,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 472 transitions, 4855 flow. Second operand has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:36,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:36,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-12-01 13:17:36,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:38,946 INFO L124 PetriNetUnfolderBase]: 1329/4017 cut-off events. [2024-12-01 13:17:38,946 INFO L125 PetriNetUnfolderBase]: For 26849/27145 co-relation queries the response was YES. [2024-12-01 13:17:38,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19932 conditions, 4017 events. 1329/4017 cut-off events. For 26849/27145 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32960 event pairs, 134 based on Foata normal form. 117/4094 useless extension candidates. Maximal degree in co-relation 19627. Up to 1142 conditions per place. [2024-12-01 13:17:38,979 INFO L140 encePairwiseOnDemand]: 133/161 looper letters, 359 selfloop transitions, 278 changer transitions 14/804 dead transitions. [2024-12-01 13:17:38,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 804 transitions, 10376 flow [2024-12-01 13:17:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:17:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-01 13:17:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2779 transitions. [2024-12-01 13:17:38,982 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8219461697722568 [2024-12-01 13:17:38,982 INFO L175 Difference]: Start difference. First operand has 305 places, 472 transitions, 4855 flow. Second operand 21 states and 2779 transitions. [2024-12-01 13:17:38,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 804 transitions, 10376 flow [2024-12-01 13:17:39,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 804 transitions, 10156 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-12-01 13:17:39,095 INFO L231 Difference]: Finished difference. Result has 333 places, 646 transitions, 8562 flow [2024-12-01 13:17:39,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=4700, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8562, PETRI_PLACES=333, PETRI_TRANSITIONS=646} [2024-12-01 13:17:39,096 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 173 predicate places. [2024-12-01 13:17:39,096 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 646 transitions, 8562 flow [2024-12-01 13:17:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:39,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:39,097 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:39,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 13:17:39,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-01 13:17:39,297 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:39,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:39,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1555694604, now seen corresponding path program 1 times [2024-12-01 13:17:39,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:39,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53116726] [2024-12-01 13:17:39,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:39,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:17:44,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:44,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53116726] [2024-12-01 13:17:44,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53116726] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:44,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598131958] [2024-12-01 13:17:44,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:17:44,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:44,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:17:44,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:17:44,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 13:17:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:17:44,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-01 13:17:44,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:17:44,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:17:44,715 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:17:44,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:17:44,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-01 13:17:44,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-12-01 13:17:44,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-12-01 13:17:45,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-12-01 13:17:45,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:45,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:45,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:17:45,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:17:45,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 64 treesize of output 47 [2024-12-01 13:17:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-01 13:17:45,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:17:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:17:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598131958] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:17:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:17:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 25] total 43 [2024-12-01 13:17:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829183892] [2024-12-01 13:17:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:46,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:17:46,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:46,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:17:46,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1693, Unknown=0, NotChecked=0, Total=1892 [2024-12-01 13:17:53,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 161 [2024-12-01 13:17:53,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 646 transitions, 8562 flow. Second operand has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:53,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:53,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 161 [2024-12-01 13:17:53,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:56,074 INFO L124 PetriNetUnfolderBase]: 1063/3465 cut-off events. [2024-12-01 13:17:56,074 INFO L125 PetriNetUnfolderBase]: For 33914/34231 co-relation queries the response was YES. [2024-12-01 13:17:56,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19173 conditions, 3465 events. 1063/3465 cut-off events. For 33914/34231 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 28646 event pairs, 45 based on Foata normal form. 91/3534 useless extension candidates. Maximal degree in co-relation 18854. Up to 805 conditions per place. [2024-12-01 13:17:56,100 INFO L140 encePairwiseOnDemand]: 144/161 looper letters, 408 selfloop transitions, 149 changer transitions 39/821 dead transitions. [2024-12-01 13:17:56,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 821 transitions, 11688 flow [2024-12-01 13:17:56,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-01 13:17:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-01 13:17:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2491 transitions. [2024-12-01 13:17:56,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8595583160800552 [2024-12-01 13:17:56,102 INFO L175 Difference]: Start difference. First operand has 333 places, 646 transitions, 8562 flow. Second operand 18 states and 2491 transitions. [2024-12-01 13:17:56,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 821 transitions, 11688 flow [2024-12-01 13:17:56,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 821 transitions, 11522 flow, removed 83 selfloop flow, removed 0 redundant places. [2024-12-01 13:17:56,273 INFO L231 Difference]: Finished difference. Result has 358 places, 707 transitions, 9852 flow [2024-12-01 13:17:56,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=8444, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=9852, PETRI_PLACES=358, PETRI_TRANSITIONS=707} [2024-12-01 13:17:56,274 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 198 predicate places. [2024-12-01 13:17:56,274 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 707 transitions, 9852 flow [2024-12-01 13:17:56,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.36363636363637) internal successors, (1456), 11 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:56,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:56,275 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:56,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 13:17:56,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:17:56,475 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1950771942, now seen corresponding path program 6 times [2024-12-01 13:17:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368450683] [2024-12-01 13:17:56,477 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 13:17:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:56,491 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-01 13:17:56,491 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:17:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:17:56,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:17:56,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368450683] [2024-12-01 13:17:56,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368450683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:17:56,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:17:56,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:17:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988887147] [2024-12-01 13:17:56,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:17:56,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:17:56,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:17:56,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:17:56,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:17:58,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:17:58,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 707 transitions, 9852 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:58,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:17:58,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:17:58,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:17:59,327 INFO L124 PetriNetUnfolderBase]: 1277/3907 cut-off events. [2024-12-01 13:17:59,327 INFO L125 PetriNetUnfolderBase]: For 41665/42036 co-relation queries the response was YES. [2024-12-01 13:17:59,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23171 conditions, 3907 events. 1277/3907 cut-off events. For 41665/42036 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 32209 event pairs, 160 based on Foata normal form. 196/4042 useless extension candidates. Maximal degree in co-relation 22842. Up to 1814 conditions per place. [2024-12-01 13:17:59,355 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 283 selfloop transitions, 311 changer transitions 14/772 dead transitions. [2024-12-01 13:17:59,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 772 transitions, 12068 flow [2024-12-01 13:17:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 13:17:59,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-01 13:17:59,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1627 transitions. [2024-12-01 13:17:59,358 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421325051759835 [2024-12-01 13:17:59,358 INFO L175 Difference]: Start difference. First operand has 358 places, 707 transitions, 9852 flow. Second operand 12 states and 1627 transitions. [2024-12-01 13:17:59,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 772 transitions, 12068 flow [2024-12-01 13:17:59,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 772 transitions, 11952 flow, removed 58 selfloop flow, removed 2 redundant places. [2024-12-01 13:17:59,573 INFO L231 Difference]: Finished difference. Result has 367 places, 726 transitions, 10851 flow [2024-12-01 13:17:59,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=9744, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=292, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10851, PETRI_PLACES=367, PETRI_TRANSITIONS=726} [2024-12-01 13:17:59,574 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 207 predicate places. [2024-12-01 13:17:59,574 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 726 transitions, 10851 flow [2024-12-01 13:17:59,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:17:59,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:17:59,574 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:17:59,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 13:17:59,575 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:17:59,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:17:59,575 INFO L85 PathProgramCache]: Analyzing trace with hash -863028476, now seen corresponding path program 7 times [2024-12-01 13:17:59,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:17:59,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062248429] [2024-12-01 13:17:59,576 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:17:59,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:17:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:18:10,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062248429] [2024-12-01 13:18:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062248429] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:10,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404402381] [2024-12-01 13:18:10,949 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:18:10,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:10,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:10,951 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:18:10,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 13:18:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:18:11,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-12-01 13:18:11,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:18:11,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:18:11,296 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:18:11,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:18:11,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:18:11,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-01 13:18:11,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-01 13:18:11,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-01 13:18:11,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:11,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:11,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:11,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:11,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:18:11,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-01 13:18:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-12-01 13:18:11,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:18:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:12,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404402381] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:12,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:18:12,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 15] total 36 [2024-12-01 13:18:12,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278952588] [2024-12-01 13:18:12,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:12,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:18:12,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:12,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:18:12,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2024-12-01 13:18:19,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-12-01 13:18:19,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 726 transitions, 10851 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:19,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:19,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-12-01 13:18:19,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:22,797 INFO L124 PetriNetUnfolderBase]: 1264/3894 cut-off events. [2024-12-01 13:18:22,797 INFO L125 PetriNetUnfolderBase]: For 46013/46313 co-relation queries the response was YES. [2024-12-01 13:18:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23877 conditions, 3894 events. 1264/3894 cut-off events. For 46013/46313 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 31999 event pairs, 102 based on Foata normal form. 154/4003 useless extension candidates. Maximal degree in co-relation 23544. Up to 1228 conditions per place. [2024-12-01 13:18:22,822 INFO L140 encePairwiseOnDemand]: 142/161 looper letters, 494 selfloop transitions, 231 changer transitions 19/903 dead transitions. [2024-12-01 13:18:22,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 903 transitions, 14459 flow [2024-12-01 13:18:22,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 13:18:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-01 13:18:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1651 transitions. [2024-12-01 13:18:22,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8545548654244306 [2024-12-01 13:18:22,825 INFO L175 Difference]: Start difference. First operand has 367 places, 726 transitions, 10851 flow. Second operand 12 states and 1651 transitions. [2024-12-01 13:18:22,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 903 transitions, 14459 flow [2024-12-01 13:18:23,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 903 transitions, 13836 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-12-01 13:18:23,033 INFO L231 Difference]: Finished difference. Result has 376 places, 760 transitions, 11589 flow [2024-12-01 13:18:23,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=10289, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=11589, PETRI_PLACES=376, PETRI_TRANSITIONS=760} [2024-12-01 13:18:23,034 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 216 predicate places. [2024-12-01 13:18:23,034 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 760 transitions, 11589 flow [2024-12-01 13:18:23,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:23,035 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:23,035 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:23,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-01 13:18:23,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-01 13:18:23,235 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:23,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:23,236 INFO L85 PathProgramCache]: Analyzing trace with hash -96084428, now seen corresponding path program 8 times [2024-12-01 13:18:23,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:23,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409436951] [2024-12-01 13:18:23,237 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:18:23,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:23,251 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:18:23,251 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:23,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409436951] [2024-12-01 13:18:23,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409436951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:23,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:23,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:18:23,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581072168] [2024-12-01 13:18:23,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:23,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:18:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:23,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:18:23,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:18:25,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:18:25,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 760 transitions, 11589 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:25,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:25,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:18:25,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:26,992 INFO L124 PetriNetUnfolderBase]: 1284/3959 cut-off events. [2024-12-01 13:18:26,992 INFO L125 PetriNetUnfolderBase]: For 50399/50687 co-relation queries the response was YES. [2024-12-01 13:18:27,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24882 conditions, 3959 events. 1284/3959 cut-off events. For 50399/50687 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 32904 event pairs, 170 based on Foata normal form. 151/4050 useless extension candidates. Maximal degree in co-relation 24546. Up to 1813 conditions per place. [2024-12-01 13:18:27,039 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 327 selfloop transitions, 333 changer transitions 13/837 dead transitions. [2024-12-01 13:18:27,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 837 transitions, 14277 flow [2024-12-01 13:18:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:18:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:18:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1874 transitions. [2024-12-01 13:18:27,041 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.831410825199645 [2024-12-01 13:18:27,041 INFO L175 Difference]: Start difference. First operand has 376 places, 760 transitions, 11589 flow. Second operand 14 states and 1874 transitions. [2024-12-01 13:18:27,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 837 transitions, 14277 flow [2024-12-01 13:18:27,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 837 transitions, 14073 flow, removed 35 selfloop flow, removed 6 redundant places. [2024-12-01 13:18:27,350 INFO L231 Difference]: Finished difference. Result has 390 places, 796 transitions, 13056 flow [2024-12-01 13:18:27,350 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=11406, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13056, PETRI_PLACES=390, PETRI_TRANSITIONS=796} [2024-12-01 13:18:27,351 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 230 predicate places. [2024-12-01 13:18:27,351 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 796 transitions, 13056 flow [2024-12-01 13:18:27,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:27,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:27,351 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:27,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 13:18:27,351 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:27,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:27,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1826914000, now seen corresponding path program 9 times [2024-12-01 13:18:27,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:27,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594129023] [2024-12-01 13:18:27,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:18:27,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:27,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:18:27,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594129023] [2024-12-01 13:18:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594129023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:28,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:28,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:18:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668917730] [2024-12-01 13:18:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:28,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:18:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:28,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:18:28,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:18:29,229 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-12-01 13:18:29,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 796 transitions, 13056 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:29,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:29,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-12-01 13:18:29,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:30,830 INFO L124 PetriNetUnfolderBase]: 1361/4048 cut-off events. [2024-12-01 13:18:30,830 INFO L125 PetriNetUnfolderBase]: For 54512/54804 co-relation queries the response was YES. [2024-12-01 13:18:30,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26275 conditions, 4048 events. 1361/4048 cut-off events. For 54512/54804 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 33271 event pairs, 139 based on Foata normal form. 131/4129 useless extension candidates. Maximal degree in co-relation 25933. Up to 1354 conditions per place. [2024-12-01 13:18:30,877 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 502 selfloop transitions, 280 changer transitions 24/962 dead transitions. [2024-12-01 13:18:30,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 962 transitions, 16726 flow [2024-12-01 13:18:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:18:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:18:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1519 transitions. [2024-12-01 13:18:30,879 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.857707509881423 [2024-12-01 13:18:30,880 INFO L175 Difference]: Start difference. First operand has 390 places, 796 transitions, 13056 flow. Second operand 11 states and 1519 transitions. [2024-12-01 13:18:30,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 962 transitions, 16726 flow [2024-12-01 13:18:31,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 962 transitions, 16328 flow, removed 97 selfloop flow, removed 4 redundant places. [2024-12-01 13:18:31,153 INFO L231 Difference]: Finished difference. Result has 401 places, 818 transitions, 13954 flow [2024-12-01 13:18:31,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=12670, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13954, PETRI_PLACES=401, PETRI_TRANSITIONS=818} [2024-12-01 13:18:31,154 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 241 predicate places. [2024-12-01 13:18:31,155 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 818 transitions, 13954 flow [2024-12-01 13:18:31,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:31,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:31,155 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:31,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 13:18:31,155 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:31,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1609783948, now seen corresponding path program 10 times [2024-12-01 13:18:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:31,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042067211] [2024-12-01 13:18:31,157 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:18:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:31,185 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:18:31,185 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:18:32,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042067211] [2024-12-01 13:18:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042067211] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361638007] [2024-12-01 13:18:32,191 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:18:32,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:32,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:18:32,192 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:18:32,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-01 13:18:32,339 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:18:32,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:32,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-01 13:18:32,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:18:32,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:18:32,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:18:32,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-01 13:18:32,890 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:18:32,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:18:32,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-01 13:18:33,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-01 13:18:33,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:33,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:33,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:33,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:18:33,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:18:33,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-01 13:18:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-01 13:18:33,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:18:34,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-12-01 13:18:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:34,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361638007] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:18:34,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:18:34,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-12-01 13:18:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346618918] [2024-12-01 13:18:34,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:34,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:18:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:34,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:18:34,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1884, Unknown=0, NotChecked=0, Total=2070 [2024-12-01 13:18:41,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-12-01 13:18:41,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 818 transitions, 13954 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:41,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:41,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-12-01 13:18:41,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:45,670 INFO L124 PetriNetUnfolderBase]: 1368/4207 cut-off events. [2024-12-01 13:18:45,670 INFO L125 PetriNetUnfolderBase]: For 64632/64974 co-relation queries the response was YES. [2024-12-01 13:18:45,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28190 conditions, 4207 events. 1368/4207 cut-off events. For 64632/64974 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 35362 event pairs, 143 based on Foata normal form. 128/4283 useless extension candidates. Maximal degree in co-relation 27845. Up to 1717 conditions per place. [2024-12-01 13:18:45,701 INFO L140 encePairwiseOnDemand]: 136/161 looper letters, 355 selfloop transitions, 443 changer transitions 10/968 dead transitions. [2024-12-01 13:18:45,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 968 transitions, 18369 flow [2024-12-01 13:18:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:18:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:18:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1876 transitions. [2024-12-01 13:18:45,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8322981366459627 [2024-12-01 13:18:45,703 INFO L175 Difference]: Start difference. First operand has 401 places, 818 transitions, 13954 flow. Second operand 14 states and 1876 transitions. [2024-12-01 13:18:45,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 968 transitions, 18369 flow [2024-12-01 13:18:46,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 968 transitions, 17738 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-12-01 13:18:46,018 INFO L231 Difference]: Finished difference. Result has 417 places, 884 transitions, 16230 flow [2024-12-01 13:18:46,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=13388, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=16230, PETRI_PLACES=417, PETRI_TRANSITIONS=884} [2024-12-01 13:18:46,018 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 257 predicate places. [2024-12-01 13:18:46,018 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 884 transitions, 16230 flow [2024-12-01 13:18:46,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:46,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:46,019 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:46,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-01 13:18:46,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:18:46,219 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:46,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1592873246, now seen corresponding path program 11 times [2024-12-01 13:18:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:46,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831795728] [2024-12-01 13:18:46,220 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:18:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:46,240 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:18:46,240 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:46,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831795728] [2024-12-01 13:18:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831795728] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:46,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:46,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:18:46,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219204560] [2024-12-01 13:18:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:46,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:18:46,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:46,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:18:46,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:18:47,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-12-01 13:18:47,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 884 transitions, 16230 flow. Second operand has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:47,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:47,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-12-01 13:18:47,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:49,610 INFO L124 PetriNetUnfolderBase]: 1450/4324 cut-off events. [2024-12-01 13:18:49,610 INFO L125 PetriNetUnfolderBase]: For 71823/72177 co-relation queries the response was YES. [2024-12-01 13:18:49,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30533 conditions, 4324 events. 1450/4324 cut-off events. For 71823/72177 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 36172 event pairs, 136 based on Foata normal form. 145/4418 useless extension candidates. Maximal degree in co-relation 30180. Up to 1506 conditions per place. [2024-12-01 13:18:49,643 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 566 selfloop transitions, 305 changer transitions 22/1049 dead transitions. [2024-12-01 13:18:49,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1049 transitions, 20284 flow [2024-12-01 13:18:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 13:18:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-12-01 13:18:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2024-12-01 13:18:49,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.848343685300207 [2024-12-01 13:18:49,645 INFO L175 Difference]: Start difference. First operand has 417 places, 884 transitions, 16230 flow. Second operand 12 states and 1639 transitions. [2024-12-01 13:18:49,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1049 transitions, 20284 flow [2024-12-01 13:18:50,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1049 transitions, 20063 flow, removed 89 selfloop flow, removed 2 redundant places. [2024-12-01 13:18:50,013 INFO L231 Difference]: Finished difference. Result has 431 places, 904 transitions, 17354 flow [2024-12-01 13:18:50,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16017, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=285, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17354, PETRI_PLACES=431, PETRI_TRANSITIONS=904} [2024-12-01 13:18:50,013 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 271 predicate places. [2024-12-01 13:18:50,013 INFO L471 AbstractCegarLoop]: Abstraction has has 431 places, 904 transitions, 17354 flow [2024-12-01 13:18:50,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 126.0) internal successors, (1260), 10 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:50,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:50,014 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:50,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 13:18:50,014 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:50,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1278085238, now seen corresponding path program 12 times [2024-12-01 13:18:50,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:50,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568679859] [2024-12-01 13:18:50,015 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 13:18:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:50,034 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-01 13:18:50,034 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:18:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:18:51,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:18:51,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568679859] [2024-12-01 13:18:51,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568679859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:18:51,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:18:51,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:18:51,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674079492] [2024-12-01 13:18:51,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:18:51,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:18:51,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:18:51,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:18:51,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:18:53,005 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:18:53,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 904 transitions, 17354 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:53,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:18:53,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:18:53,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:18:54,677 INFO L124 PetriNetUnfolderBase]: 1366/4194 cut-off events. [2024-12-01 13:18:54,677 INFO L125 PetriNetUnfolderBase]: For 77795/78180 co-relation queries the response was YES. [2024-12-01 13:18:54,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30384 conditions, 4194 events. 1366/4194 cut-off events. For 77795/78180 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35356 event pairs, 115 based on Foata normal form. 146/4280 useless extension candidates. Maximal degree in co-relation 30026. Up to 1366 conditions per place. [2024-12-01 13:18:54,709 INFO L140 encePairwiseOnDemand]: 143/161 looper letters, 579 selfloop transitions, 288 changer transitions 9/1042 dead transitions. [2024-12-01 13:18:54,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1042 transitions, 20968 flow [2024-12-01 13:18:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:18:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:18:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1513 transitions. [2024-12-01 13:18:54,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8543195934500283 [2024-12-01 13:18:54,711 INFO L175 Difference]: Start difference. First operand has 431 places, 904 transitions, 17354 flow. Second operand 11 states and 1513 transitions. [2024-12-01 13:18:54,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1042 transitions, 20968 flow [2024-12-01 13:18:55,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 1042 transitions, 20508 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-12-01 13:18:55,149 INFO L231 Difference]: Finished difference. Result has 438 places, 911 transitions, 17849 flow [2024-12-01 13:18:55,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=16899, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=281, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=620, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17849, PETRI_PLACES=438, PETRI_TRANSITIONS=911} [2024-12-01 13:18:55,150 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 278 predicate places. [2024-12-01 13:18:55,150 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 911 transitions, 17849 flow [2024-12-01 13:18:55,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:18:55,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:18:55,150 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:18:55,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 13:18:55,150 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:18:55,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:18:55,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1438884652, now seen corresponding path program 13 times [2024-12-01 13:18:55,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:18:55,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011862228] [2024-12-01 13:18:55,151 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:18:55,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:18:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:06,908 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:19:06,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:06,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011862228] [2024-12-01 13:19:06,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011862228] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:06,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891493511] [2024-12-01 13:19:06,908 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:19:06,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:06,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:06,910 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:19:06,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-01 13:19:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:07,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-12-01 13:19:07,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:07,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:19:07,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:19:07,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-01 13:19:07,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-01 13:19:07,676 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:19:07,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:19:07,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-01 13:19:07,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:07,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:07,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:07,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:07,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:19:07,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 73 [2024-12-01 13:19:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-01 13:19:07,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:19:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:08,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891493511] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:19:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 23] total 45 [2024-12-01 13:19:08,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011934308] [2024-12-01 13:19:08,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:08,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:19:08,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:08,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:19:08,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1865, Unknown=0, NotChecked=0, Total=2070 [2024-12-01 13:19:12,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-12-01 13:19:12,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 911 transitions, 17849 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:12,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:12,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-12-01 13:19:12,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:15,451 INFO L124 PetriNetUnfolderBase]: 1396/4278 cut-off events. [2024-12-01 13:19:15,451 INFO L125 PetriNetUnfolderBase]: For 81218/81593 co-relation queries the response was YES. [2024-12-01 13:19:15,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31028 conditions, 4278 events. 1396/4278 cut-off events. For 81218/81593 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 36028 event pairs, 58 based on Foata normal form. 158/4397 useless extension candidates. Maximal degree in co-relation 30667. Up to 1725 conditions per place. [2024-12-01 13:19:15,490 INFO L140 encePairwiseOnDemand]: 137/161 looper letters, 367 selfloop transitions, 458 changer transitions 15/993 dead transitions. [2024-12-01 13:19:15,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 993 transitions, 20735 flow [2024-12-01 13:19:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 13:19:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-01 13:19:15,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1755 transitions. [2024-12-01 13:19:15,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8385093167701864 [2024-12-01 13:19:15,493 INFO L175 Difference]: Start difference. First operand has 438 places, 911 transitions, 17849 flow. Second operand 13 states and 1755 transitions. [2024-12-01 13:19:15,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 993 transitions, 20735 flow [2024-12-01 13:19:15,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 993 transitions, 20329 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-12-01 13:19:16,000 INFO L231 Difference]: Finished difference. Result has 448 places, 924 transitions, 18803 flow [2024-12-01 13:19:16,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=17446, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=445, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18803, PETRI_PLACES=448, PETRI_TRANSITIONS=924} [2024-12-01 13:19:16,001 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 288 predicate places. [2024-12-01 13:19:16,001 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 924 transitions, 18803 flow [2024-12-01 13:19:16,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:16,001 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:16,002 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:16,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-01 13:19:16,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-01 13:19:16,202 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:16,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1043715076, now seen corresponding path program 14 times [2024-12-01 13:19:16,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:16,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928112760] [2024-12-01 13:19:16,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:19:16,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:16,217 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:19:16,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:16,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:16,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928112760] [2024-12-01 13:19:16,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928112760] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:16,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:16,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:19:16,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875842820] [2024-12-01 13:19:16,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:16,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:19:16,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:16,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:19:16,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:19:17,808 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:19:17,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 924 transitions, 18803 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:17,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:17,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:19:17,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:19,551 INFO L124 PetriNetUnfolderBase]: 1359/4177 cut-off events. [2024-12-01 13:19:19,552 INFO L125 PetriNetUnfolderBase]: For 88233/88632 co-relation queries the response was YES. [2024-12-01 13:19:19,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31327 conditions, 4177 events. 1359/4177 cut-off events. For 88233/88632 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 35198 event pairs, 179 based on Foata normal form. 230/4344 useless extension candidates. Maximal degree in co-relation 30963. Up to 1973 conditions per place. [2024-12-01 13:19:19,593 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 399 selfloop transitions, 391 changer transitions 9/965 dead transitions. [2024-12-01 13:19:19,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 965 transitions, 21069 flow [2024-12-01 13:19:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:19:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:19:19,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1495 transitions. [2024-12-01 13:19:19,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8441558441558441 [2024-12-01 13:19:19,594 INFO L175 Difference]: Start difference. First operand has 448 places, 924 transitions, 18803 flow. Second operand 11 states and 1495 transitions. [2024-12-01 13:19:19,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 965 transitions, 21069 flow [2024-12-01 13:19:20,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 965 transitions, 20698 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-12-01 13:19:20,115 INFO L231 Difference]: Finished difference. Result has 453 places, 927 transitions, 19333 flow [2024-12-01 13:19:20,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=388, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19333, PETRI_PLACES=453, PETRI_TRANSITIONS=927} [2024-12-01 13:19:20,116 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 293 predicate places. [2024-12-01 13:19:20,116 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 927 transitions, 19333 flow [2024-12-01 13:19:20,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:20,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:20,116 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:20,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 13:19:20,116 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:20,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:20,118 INFO L85 PathProgramCache]: Analyzing trace with hash -248605670, now seen corresponding path program 15 times [2024-12-01 13:19:20,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:20,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469178035] [2024-12-01 13:19:20,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:19:20,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:20,146 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:19:20,146 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:20,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:20,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469178035] [2024-12-01 13:19:20,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469178035] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:20,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:20,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:19:20,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928303752] [2024-12-01 13:19:20,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:20,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:19:20,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:20,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:19:20,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:19:21,877 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:19:21,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 927 transitions, 19333 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:21,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:21,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:19:21,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:23,576 INFO L124 PetriNetUnfolderBase]: 1366/4218 cut-off events. [2024-12-01 13:19:23,576 INFO L125 PetriNetUnfolderBase]: For 94160/94529 co-relation queries the response was YES. [2024-12-01 13:19:23,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32027 conditions, 4218 events. 1366/4218 cut-off events. For 94160/94529 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 35709 event pairs, 180 based on Foata normal form. 136/4292 useless extension candidates. Maximal degree in co-relation 31665. Up to 1912 conditions per place. [2024-12-01 13:19:23,619 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 450 selfloop transitions, 376 changer transitions 9/1001 dead transitions. [2024-12-01 13:19:23,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 1001 transitions, 22566 flow [2024-12-01 13:19:23,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:19:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-01 13:19:23,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1356 transitions. [2024-12-01 13:19:23,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8422360248447205 [2024-12-01 13:19:23,621 INFO L175 Difference]: Start difference. First operand has 453 places, 927 transitions, 19333 flow. Second operand 10 states and 1356 transitions. [2024-12-01 13:19:23,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 1001 transitions, 22566 flow [2024-12-01 13:19:24,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1001 transitions, 22057 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-12-01 13:19:24,192 INFO L231 Difference]: Finished difference. Result has 464 places, 962 transitions, 20935 flow [2024-12-01 13:19:24,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=343, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20935, PETRI_PLACES=464, PETRI_TRANSITIONS=962} [2024-12-01 13:19:24,193 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 304 predicate places. [2024-12-01 13:19:24,193 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 962 transitions, 20935 flow [2024-12-01 13:19:24,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:24,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:24,193 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:24,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 13:19:24,194 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:24,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash 108608602, now seen corresponding path program 16 times [2024-12-01 13:19:24,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:24,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652742180] [2024-12-01 13:19:24,196 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:19:24,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:24,229 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:19:24,229 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:19:25,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:25,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652742180] [2024-12-01 13:19:25,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652742180] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:25,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942581508] [2024-12-01 13:19:25,414 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:19:25,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:25,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:25,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:19:25,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-01 13:19:25,546 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:19:25,546 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:25,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-12-01 13:19:25,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:19:25,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2024-12-01 13:19:25,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:19:26,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-12-01 13:19:26,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-12-01 13:19:26,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-12-01 13:19:26,316 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-12-01 13:19:26,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 15 [2024-12-01 13:19:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:26,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:19:26,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:19:26,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 60 [2024-12-01 13:19:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-01 13:19:26,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:19:27,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-12-01 13:19:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:27,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942581508] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:27,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:19:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 25] total 45 [2024-12-01 13:19:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195024288] [2024-12-01 13:19:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:27,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:19:27,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:27,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:19:27,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1880, Unknown=0, NotChecked=0, Total=2070 [2024-12-01 13:19:35,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-12-01 13:19:35,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 962 transitions, 20935 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:35,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:35,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-12-01 13:19:35,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:39,690 INFO L124 PetriNetUnfolderBase]: 1377/4262 cut-off events. [2024-12-01 13:19:39,690 INFO L125 PetriNetUnfolderBase]: For 100352/100724 co-relation queries the response was YES. [2024-12-01 13:19:39,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32920 conditions, 4262 events. 1377/4262 cut-off events. For 100352/100724 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 36174 event pairs, 134 based on Foata normal form. 142/4358 useless extension candidates. Maximal degree in co-relation 32553. Up to 1740 conditions per place. [2024-12-01 13:19:39,738 INFO L140 encePairwiseOnDemand]: 134/161 looper letters, 355 selfloop transitions, 514 changer transitions 14/1044 dead transitions. [2024-12-01 13:19:39,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 1044 transitions, 24225 flow [2024-12-01 13:19:39,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:19:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-01 13:19:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2128 transitions. [2024-12-01 13:19:39,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8260869565217391 [2024-12-01 13:19:39,740 INFO L175 Difference]: Start difference. First operand has 464 places, 962 transitions, 20935 flow. Second operand 16 states and 2128 transitions. [2024-12-01 13:19:39,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 1044 transitions, 24225 flow [2024-12-01 13:19:40,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 1044 transitions, 23933 flow, removed 123 selfloop flow, removed 2 redundant places. [2024-12-01 13:19:40,407 INFO L231 Difference]: Finished difference. Result has 481 places, 974 transitions, 22177 flow [2024-12-01 13:19:40,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=20687, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=502, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22177, PETRI_PLACES=481, PETRI_TRANSITIONS=974} [2024-12-01 13:19:40,408 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 321 predicate places. [2024-12-01 13:19:40,408 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 974 transitions, 22177 flow [2024-12-01 13:19:40,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:40,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:40,409 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:40,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-01 13:19:40,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-01 13:19:40,609 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:40,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1066804320, now seen corresponding path program 17 times [2024-12-01 13:19:40,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:40,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915765332] [2024-12-01 13:19:40,610 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:19:40,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:40,629 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:19:40,630 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:41,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915765332] [2024-12-01 13:19:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915765332] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:41,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:41,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:19:41,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368829130] [2024-12-01 13:19:41,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:41,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:19:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:41,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:19:41,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:19:42,389 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:19:42,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 974 transitions, 22177 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:42,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:42,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:19:42,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:44,361 INFO L124 PetriNetUnfolderBase]: 1370/4243 cut-off events. [2024-12-01 13:19:44,361 INFO L125 PetriNetUnfolderBase]: For 110568/110960 co-relation queries the response was YES. [2024-12-01 13:19:44,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33808 conditions, 4243 events. 1370/4243 cut-off events. For 110568/110960 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36063 event pairs, 171 based on Foata normal form. 155/4335 useless extension candidates. Maximal degree in co-relation 33438. Up to 1922 conditions per place. [2024-12-01 13:19:44,409 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 424 selfloop transitions, 434 changer transitions 9/1033 dead transitions. [2024-12-01 13:19:44,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 1033 transitions, 25227 flow [2024-12-01 13:19:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:19:44,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:19:44,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1873 transitions. [2024-12-01 13:19:44,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8309671694764863 [2024-12-01 13:19:44,412 INFO L175 Difference]: Start difference. First operand has 481 places, 974 transitions, 22177 flow. Second operand 14 states and 1873 transitions. [2024-12-01 13:19:44,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 1033 transitions, 25227 flow [2024-12-01 13:19:45,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 1033 transitions, 24408 flow, removed 47 selfloop flow, removed 9 redundant places. [2024-12-01 13:19:45,050 INFO L231 Difference]: Finished difference. Result has 491 places, 1002 transitions, 23279 flow [2024-12-01 13:19:45,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=21393, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=974, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=23279, PETRI_PLACES=491, PETRI_TRANSITIONS=1002} [2024-12-01 13:19:45,052 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 331 predicate places. [2024-12-01 13:19:45,052 INFO L471 AbstractCegarLoop]: Abstraction has has 491 places, 1002 transitions, 23279 flow [2024-12-01 13:19:45,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:45,052 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:45,052 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:45,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 13:19:45,053 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:45,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:45,055 INFO L85 PathProgramCache]: Analyzing trace with hash -922842554, now seen corresponding path program 18 times [2024-12-01 13:19:45,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:45,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382787425] [2024-12-01 13:19:45,055 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 13:19:45,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:45,093 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-01 13:19:45,093 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:19:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:19:45,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:45,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382787425] [2024-12-01 13:19:45,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382787425] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:19:45,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:19:45,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:19:45,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285250905] [2024-12-01 13:19:45,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:19:45,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:19:45,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:19:45,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:19:45,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:19:47,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:19:47,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 1002 transitions, 23279 flow. Second operand has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:47,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:19:47,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:19:47,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:19:49,016 INFO L124 PetriNetUnfolderBase]: 1379/4283 cut-off events. [2024-12-01 13:19:49,017 INFO L125 PetriNetUnfolderBase]: For 114125/114505 co-relation queries the response was YES. [2024-12-01 13:19:49,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34278 conditions, 4283 events. 1379/4283 cut-off events. For 114125/114505 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 36528 event pairs, 169 based on Foata normal form. 179/4399 useless extension candidates. Maximal degree in co-relation 33902. Up to 1981 conditions per place. [2024-12-01 13:19:49,071 INFO L140 encePairwiseOnDemand]: 141/161 looper letters, 466 selfloop transitions, 410 changer transitions 9/1051 dead transitions. [2024-12-01 13:19:49,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 1051 transitions, 25978 flow [2024-12-01 13:19:49,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:19:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-01 13:19:49,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1361 transitions. [2024-12-01 13:19:49,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8453416149068324 [2024-12-01 13:19:49,072 INFO L175 Difference]: Start difference. First operand has 491 places, 1002 transitions, 23279 flow. Second operand 10 states and 1361 transitions. [2024-12-01 13:19:49,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 1051 transitions, 25978 flow [2024-12-01 13:19:49,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 1051 transitions, 24943 flow, removed 140 selfloop flow, removed 9 redundant places. [2024-12-01 13:19:49,774 INFO L231 Difference]: Finished difference. Result has 495 places, 1015 transitions, 23536 flow [2024-12-01 13:19:49,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22260, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1002, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23536, PETRI_PLACES=495, PETRI_TRANSITIONS=1015} [2024-12-01 13:19:49,775 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 335 predicate places. [2024-12-01 13:19:49,775 INFO L471 AbstractCegarLoop]: Abstraction has has 495 places, 1015 transitions, 23536 flow [2024-12-01 13:19:49,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.0) internal successors, (1280), 10 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:19:49,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:19:49,775 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:19:49,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 13:19:49,776 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:19:49,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:19:49,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1112223526, now seen corresponding path program 19 times [2024-12-01 13:19:49,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:19:49,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65374184] [2024-12-01 13:19:49,777 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:19:49,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:19:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:19:59,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:19:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65374184] [2024-12-01 13:19:59,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65374184] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:19:59,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139866941] [2024-12-01 13:19:59,499 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:19:59,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:19:59,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:19:59,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:19:59,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-01 13:19:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:19:59,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-12-01 13:19:59,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:00,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:20:00,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:20:00,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:20:00,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:20:00,451 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:20:00,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:20:00,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-01 13:20:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:00,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:00,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:20:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-01 13:20:00,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:20:01,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2024-12-01 13:20:01,403 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:20:01,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139866941] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:01,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:20:01,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 24] total 45 [2024-12-01 13:20:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001211403] [2024-12-01 13:20:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:01,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:20:01,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:01,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:20:01,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1838, Unknown=0, NotChecked=0, Total=2070 [2024-12-01 13:20:04,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 161 [2024-12-01 13:20:04,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 1015 transitions, 23536 flow. Second operand has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:20:04,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:04,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 161 [2024-12-01 13:20:04,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:20:07,378 INFO L124 PetriNetUnfolderBase]: 1424/4388 cut-off events. [2024-12-01 13:20:07,378 INFO L125 PetriNetUnfolderBase]: For 114418/114781 co-relation queries the response was YES. [2024-12-01 13:20:07,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34936 conditions, 4388 events. 1424/4388 cut-off events. For 114418/114781 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37427 event pairs, 157 based on Foata normal form. 183/4519 useless extension candidates. Maximal degree in co-relation 34561. Up to 1890 conditions per place. [2024-12-01 13:20:07,425 INFO L140 encePairwiseOnDemand]: 135/161 looper letters, 359 selfloop transitions, 578 changer transitions 12/1102 dead transitions. [2024-12-01 13:20:07,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1102 transitions, 27148 flow [2024-12-01 13:20:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:20:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-01 13:20:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2122 transitions. [2024-12-01 13:20:07,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8237577639751553 [2024-12-01 13:20:07,427 INFO L175 Difference]: Start difference. First operand has 495 places, 1015 transitions, 23536 flow. Second operand 16 states and 2122 transitions. [2024-12-01 13:20:07,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1102 transitions, 27148 flow [2024-12-01 13:20:08,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1102 transitions, 26392 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-12-01 13:20:08,112 INFO L231 Difference]: Finished difference. Result has 512 places, 1039 transitions, 25152 flow [2024-12-01 13:20:08,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=22794, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1015, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=554, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25152, PETRI_PLACES=512, PETRI_TRANSITIONS=1039} [2024-12-01 13:20:08,113 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 352 predicate places. [2024-12-01 13:20:08,113 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 1039 transitions, 25152 flow [2024-12-01 13:20:08,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 125.9090909090909) internal successors, (1385), 11 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:20:08,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:08,114 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:08,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-01 13:20:08,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-01 13:20:08,314 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:20:08,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:08,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1320217438, now seen corresponding path program 20 times [2024-12-01 13:20:08,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:08,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695975311] [2024-12-01 13:20:08,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:20:08,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:08,339 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:20:08,339 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:20:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:20:11,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:11,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695975311] [2024-12-01 13:20:11,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695975311] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:20:11,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:20:11,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 13:20:11,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948833743] [2024-12-01 13:20:11,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:20:11,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 13:20:11,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:20:11,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 13:20:11,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-12-01 13:20:13,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 161 [2024-12-01 13:20:13,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 1039 transitions, 25152 flow. Second operand has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:20:13,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:20:13,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 161 [2024-12-01 13:20:13,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:20:15,838 INFO L124 PetriNetUnfolderBase]: 1470/4447 cut-off events. [2024-12-01 13:20:15,838 INFO L125 PetriNetUnfolderBase]: For 121118/121488 co-relation queries the response was YES. [2024-12-01 13:20:15,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36172 conditions, 4447 events. 1470/4447 cut-off events. For 121118/121488 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 37744 event pairs, 211 based on Foata normal form. 237/4628 useless extension candidates. Maximal degree in co-relation 35790. Up to 2225 conditions per place. [2024-12-01 13:20:15,879 INFO L140 encePairwiseOnDemand]: 140/161 looper letters, 433 selfloop transitions, 490 changer transitions 18/1092 dead transitions. [2024-12-01 13:20:15,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 1092 transitions, 27929 flow [2024-12-01 13:20:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:20:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-01 13:20:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1986 transitions. [2024-12-01 13:20:15,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.822360248447205 [2024-12-01 13:20:15,881 INFO L175 Difference]: Start difference. First operand has 512 places, 1039 transitions, 25152 flow. Second operand 15 states and 1986 transitions. [2024-12-01 13:20:15,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 526 places, 1092 transitions, 27929 flow [2024-12-01 13:20:16,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1092 transitions, 27403 flow, removed 28 selfloop flow, removed 5 redundant places. [2024-12-01 13:20:16,563 INFO L231 Difference]: Finished difference. Result has 524 places, 1045 transitions, 25924 flow [2024-12-01 13:20:16,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24631, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=484, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25924, PETRI_PLACES=524, PETRI_TRANSITIONS=1045} [2024-12-01 13:20:16,564 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 364 predicate places. [2024-12-01 13:20:16,564 INFO L471 AbstractCegarLoop]: Abstraction has has 524 places, 1045 transitions, 25924 flow [2024-12-01 13:20:16,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 124.75) internal successors, (1497), 12 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:20:16,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:20:16,564 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:20:16,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-01 13:20:16,564 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:20:16,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:20:16,566 INFO L85 PathProgramCache]: Analyzing trace with hash 822304874, now seen corresponding path program 1 times [2024-12-01 13:20:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:20:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535087828] [2024-12-01 13:20:16,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:20:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-12-01 13:20:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:20:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535087828] [2024-12-01 13:20:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535087828] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:20:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224829911] [2024-12-01 13:20:41,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 13:20:41,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:20:41,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:20:41,948 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:20:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-01 13:20:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:20:42,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-12-01 13:20:42,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:20:42,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:20:42,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:20:43,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:20:43,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:20:43,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-01 13:20:43,457 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:20:43,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:20:43,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-12-01 13:20:43,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2024-12-01 13:20:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:20:43,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:43,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:20:44,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:44,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:44,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:20:44,084 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:20:44,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:21:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-01 13:21:00,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:21:03,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-12-01 13:21:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:21:03,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224829911] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:21:03,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:21:03,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19, 31] total 61 [2024-12-01 13:21:03,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633799136] [2024-12-01 13:21:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:03,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:21:03,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:03,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:21:03,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=3442, Unknown=4, NotChecked=0, Total=3782 [2024-12-01 13:21:33,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:21:33,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1045 transitions, 25924 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:21:33,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:21:33,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:21:33,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:21:46,077 INFO L124 PetriNetUnfolderBase]: 2124/7017 cut-off events. [2024-12-01 13:21:46,077 INFO L125 PetriNetUnfolderBase]: For 219492/220223 co-relation queries the response was YES. [2024-12-01 13:21:46,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56335 conditions, 7017 events. 2124/7017 cut-off events. For 219492/220223 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 69970 event pairs, 132 based on Foata normal form. 209/7186 useless extension candidates. Maximal degree in co-relation 55949. Up to 1792 conditions per place. [2024-12-01 13:21:46,134 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 853 selfloop transitions, 312 changer transitions 49/1482 dead transitions. [2024-12-01 13:21:46,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 1482 transitions, 36954 flow [2024-12-01 13:21:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-01 13:21:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-12-01 13:21:46,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2840 transitions. [2024-12-01 13:21:46,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8399881691807157 [2024-12-01 13:21:46,137 INFO L175 Difference]: Start difference. First operand has 524 places, 1045 transitions, 25924 flow. Second operand 21 states and 2840 transitions. [2024-12-01 13:21:46,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 1482 transitions, 36954 flow [2024-12-01 13:21:47,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1482 transitions, 35755 flow, removed 31 selfloop flow, removed 9 redundant places. [2024-12-01 13:21:47,208 INFO L231 Difference]: Finished difference. Result has 544 places, 1186 transitions, 28931 flow [2024-12-01 13:21:47,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=24942, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=820, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=28931, PETRI_PLACES=544, PETRI_TRANSITIONS=1186} [2024-12-01 13:21:47,209 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 384 predicate places. [2024-12-01 13:21:47,209 INFO L471 AbstractCegarLoop]: Abstraction has has 544 places, 1186 transitions, 28931 flow [2024-12-01 13:21:47,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:21:47,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:21:47,210 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:47,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-01 13:21:47,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:21:47,410 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:21:47,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash -90737924, now seen corresponding path program 2 times [2024-12-01 13:21:47,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:47,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061024529] [2024-12-01 13:21:47,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:21:47,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:47,431 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:21:47,431 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:21:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:21:48,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:48,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061024529] [2024-12-01 13:21:48,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061024529] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:48,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:48,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:21:48,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800275686] [2024-12-01 13:21:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:48,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:21:48,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:48,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:21:48,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:21:49,634 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:21:49,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 1186 transitions, 28931 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:21:49,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:21:49,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:21:49,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:21:52,137 INFO L124 PetriNetUnfolderBase]: 1960/6853 cut-off events. [2024-12-01 13:21:52,137 INFO L125 PetriNetUnfolderBase]: For 227581/228332 co-relation queries the response was YES. [2024-12-01 13:21:52,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55850 conditions, 6853 events. 1960/6853 cut-off events. For 227581/228332 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 70212 event pairs, 76 based on Foata normal form. 251/7074 useless extension candidates. Maximal degree in co-relation 55457. Up to 2307 conditions per place. [2024-12-01 13:21:52,205 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 529 selfloop transitions, 212 changer transitions 6/1293 dead transitions. [2024-12-01 13:21:52,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 1293 transitions, 33761 flow [2024-12-01 13:21:52,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 13:21:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-01 13:21:52,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1400 transitions. [2024-12-01 13:21:52,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8695652173913043 [2024-12-01 13:21:52,207 INFO L175 Difference]: Start difference. First operand has 544 places, 1186 transitions, 28931 flow. Second operand 10 states and 1400 transitions. [2024-12-01 13:21:52,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 1293 transitions, 33761 flow [2024-12-01 13:21:53,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 1293 transitions, 33377 flow, removed 174 selfloop flow, removed 2 redundant places. [2024-12-01 13:21:53,480 INFO L231 Difference]: Finished difference. Result has 554 places, 1250 transitions, 31920 flow [2024-12-01 13:21:53,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=28651, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1008, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31920, PETRI_PLACES=554, PETRI_TRANSITIONS=1250} [2024-12-01 13:21:53,481 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 394 predicate places. [2024-12-01 13:21:53,481 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 1250 transitions, 31920 flow [2024-12-01 13:21:53,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:21:53,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:21:53,481 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:21:53,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-01 13:21:53,481 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:21:53,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:21:53,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1780496292, now seen corresponding path program 3 times [2024-12-01 13:21:53,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:21:53,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610094590] [2024-12-01 13:21:53,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:21:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:21:53,497 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:21:53,497 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:21:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:21:54,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:21:54,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610094590] [2024-12-01 13:21:54,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610094590] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:21:54,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:21:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:21:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912428161] [2024-12-01 13:21:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:21:54,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:21:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:21:54,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:21:54,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:21:55,900 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:21:55,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 1250 transitions, 31920 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:21:55,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:21:55,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:21:55,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:21:59,250 INFO L124 PetriNetUnfolderBase]: 2283/7789 cut-off events. [2024-12-01 13:21:59,250 INFO L125 PetriNetUnfolderBase]: For 265561/266484 co-relation queries the response was YES. [2024-12-01 13:21:59,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62255 conditions, 7789 events. 2283/7789 cut-off events. For 265561/266484 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 81034 event pairs, 97 based on Foata normal form. 292/8044 useless extension candidates. Maximal degree in co-relation 61858. Up to 1975 conditions per place. [2024-12-01 13:21:59,317 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 670 selfloop transitions, 315 changer transitions 9/1540 dead transitions. [2024-12-01 13:21:59,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 1540 transitions, 39108 flow [2024-12-01 13:21:59,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:21:59,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:21:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1563 transitions. [2024-12-01 13:21:59,318 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8825522303783173 [2024-12-01 13:21:59,318 INFO L175 Difference]: Start difference. First operand has 554 places, 1250 transitions, 31920 flow. Second operand 11 states and 1563 transitions. [2024-12-01 13:21:59,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 1540 transitions, 39108 flow [2024-12-01 13:22:00,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 1540 transitions, 38885 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-12-01 13:22:00,603 INFO L231 Difference]: Finished difference. Result has 566 places, 1359 transitions, 35949 flow [2024-12-01 13:22:00,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=31751, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=35949, PETRI_PLACES=566, PETRI_TRANSITIONS=1359} [2024-12-01 13:22:00,604 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 406 predicate places. [2024-12-01 13:22:00,604 INFO L471 AbstractCegarLoop]: Abstraction has has 566 places, 1359 transitions, 35949 flow [2024-12-01 13:22:00,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:00,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:22:00,605 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:00,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-01 13:22:00,605 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:22:00,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 430544120, now seen corresponding path program 4 times [2024-12-01 13:22:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95026462] [2024-12-01 13:22:00,606 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:22:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:00,631 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:22:00,631 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:22:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:22:02,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:02,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95026462] [2024-12-01 13:22:02,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95026462] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:22:02,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004846797] [2024-12-01 13:22:02,424 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:22:02,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:22:02,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:22:02,426 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:22:02,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-01 13:22:02,597 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:22:02,597 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:22:02,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-12-01 13:22:02,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:22:03,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:22:03,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:22:03,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:22:03,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:22:03,316 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:22:03,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:22:03,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2024-12-01 13:22:03,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2024-12-01 13:22:03,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-12-01 13:22:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2024-12-01 13:22:03,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 88 [2024-12-01 13:22:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:22:03,965 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:22:03,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:22:04,055 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 214 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-01 13:22:04,055 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:22:06,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2024-12-01 13:22:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:22:06,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004846797] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:22:06,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:22:06,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 27] total 52 [2024-12-01 13:22:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040998729] [2024-12-01 13:22:06,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:06,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:22:06,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:06,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:22:06,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2473, Unknown=0, NotChecked=0, Total=2756 [2024-12-01 13:22:22,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:22:22,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 566 places, 1359 transitions, 35949 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:22,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:22:22,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:22:22,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:22:30,842 INFO L124 PetriNetUnfolderBase]: 2801/9100 cut-off events. [2024-12-01 13:22:30,842 INFO L125 PetriNetUnfolderBase]: For 340181/341332 co-relation queries the response was YES. [2024-12-01 13:22:30,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75647 conditions, 9100 events. 2801/9100 cut-off events. For 340181/341332 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 94902 event pairs, 161 based on Foata normal form. 448/9505 useless extension candidates. Maximal degree in co-relation 75244. Up to 2400 conditions per place. [2024-12-01 13:22:30,947 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 830 selfloop transitions, 610 changer transitions 18/1726 dead transitions. [2024-12-01 13:22:30,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1726 transitions, 48299 flow [2024-12-01 13:22:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-01 13:22:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-12-01 13:22:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2572 transitions. [2024-12-01 13:22:30,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407976462896372 [2024-12-01 13:22:30,949 INFO L175 Difference]: Start difference. First operand has 566 places, 1359 transitions, 35949 flow. Second operand 19 states and 2572 transitions. [2024-12-01 13:22:30,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1726 transitions, 48299 flow [2024-12-01 13:22:32,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 1726 transitions, 47714 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-12-01 13:22:32,828 INFO L231 Difference]: Finished difference. Result has 596 places, 1544 transitions, 43646 flow [2024-12-01 13:22:32,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=35478, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=429, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=43646, PETRI_PLACES=596, PETRI_TRANSITIONS=1544} [2024-12-01 13:22:32,829 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 436 predicate places. [2024-12-01 13:22:32,829 INFO L471 AbstractCegarLoop]: Abstraction has has 596 places, 1544 transitions, 43646 flow [2024-12-01 13:22:32,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:32,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:22:32,830 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:32,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-01 13:22:33,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:22:33,030 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:22:33,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -523346460, now seen corresponding path program 5 times [2024-12-01 13:22:33,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:33,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738263133] [2024-12-01 13:22:33,032 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:22:33,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:33,055 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:22:33,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:22:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:22:34,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:34,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738263133] [2024-12-01 13:22:34,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738263133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:34,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:34,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-01 13:22:34,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62456305] [2024-12-01 13:22:34,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:34,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 13:22:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:34,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 13:22:34,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-01 13:22:35,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 161 [2024-12-01 13:22:35,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1544 transitions, 43646 flow. Second operand has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:35,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:22:35,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 161 [2024-12-01 13:22:35,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:22:40,657 INFO L124 PetriNetUnfolderBase]: 2885/9596 cut-off events. [2024-12-01 13:22:40,658 INFO L125 PetriNetUnfolderBase]: For 419622/421248 co-relation queries the response was YES. [2024-12-01 13:22:40,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83135 conditions, 9596 events. 2885/9596 cut-off events. For 419622/421248 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 102736 event pairs, 154 based on Foata normal form. 605/10141 useless extension candidates. Maximal degree in co-relation 82719. Up to 3257 conditions per place. [2024-12-01 13:22:40,775 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 680 selfloop transitions, 600 changer transitions 12/1816 dead transitions. [2024-12-01 13:22:40,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 1816 transitions, 54649 flow [2024-12-01 13:22:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-01 13:22:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-01 13:22:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2215 transitions. [2024-12-01 13:22:40,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.859860248447205 [2024-12-01 13:22:40,777 INFO L175 Difference]: Start difference. First operand has 596 places, 1544 transitions, 43646 flow. Second operand 16 states and 2215 transitions. [2024-12-01 13:22:40,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 1816 transitions, 54649 flow [2024-12-01 13:22:43,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1816 transitions, 54404 flow, removed 94 selfloop flow, removed 2 redundant places. [2024-12-01 13:22:43,265 INFO L231 Difference]: Finished difference. Result has 621 places, 1726 transitions, 52821 flow [2024-12-01 13:22:43,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=43457, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=438, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1067, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=52821, PETRI_PLACES=621, PETRI_TRANSITIONS=1726} [2024-12-01 13:22:43,266 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 461 predicate places. [2024-12-01 13:22:43,266 INFO L471 AbstractCegarLoop]: Abstraction has has 621 places, 1726 transitions, 52821 flow [2024-12-01 13:22:43,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 131.45454545454547) internal successors, (1446), 11 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:43,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:22:43,266 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:43,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-01 13:22:43,266 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:22:43,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1496528486, now seen corresponding path program 6 times [2024-12-01 13:22:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458279502] [2024-12-01 13:22:43,268 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 13:22:43,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:43,301 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-01 13:22:43,301 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:22:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:22:44,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:22:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458279502] [2024-12-01 13:22:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458279502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:22:44,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:22:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:22:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000858221] [2024-12-01 13:22:44,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:22:44,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:22:44,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:22:44,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:22:44,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:22:46,350 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:22:46,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1726 transitions, 52821 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:46,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:22:46,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:22:46,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:22:51,405 INFO L124 PetriNetUnfolderBase]: 2889/9800 cut-off events. [2024-12-01 13:22:51,405 INFO L125 PetriNetUnfolderBase]: For 516182/518027 co-relation queries the response was YES. [2024-12-01 13:22:51,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89123 conditions, 9800 events. 2889/9800 cut-off events. For 516182/518027 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 106477 event pairs, 118 based on Foata normal form. 719/10452 useless extension candidates. Maximal degree in co-relation 88695. Up to 3297 conditions per place. [2024-12-01 13:22:51,531 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 731 selfloop transitions, 638 changer transitions 7/1931 dead transitions. [2024-12-01 13:22:51,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1931 transitions, 63306 flow [2024-12-01 13:22:51,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-01 13:22:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-01 13:22:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2084 transitions. [2024-12-01 13:22:51,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8629399585921325 [2024-12-01 13:22:51,533 INFO L175 Difference]: Start difference. First operand has 621 places, 1726 transitions, 52821 flow. Second operand 15 states and 2084 transitions. [2024-12-01 13:22:51,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1931 transitions, 63306 flow [2024-12-01 13:22:54,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1931 transitions, 63072 flow, removed 73 selfloop flow, removed 2 redundant places. [2024-12-01 13:22:54,298 INFO L231 Difference]: Finished difference. Result has 642 places, 1869 transitions, 61761 flow [2024-12-01 13:22:54,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=52622, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1726, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=507, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=61761, PETRI_PLACES=642, PETRI_TRANSITIONS=1869} [2024-12-01 13:22:54,300 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 482 predicate places. [2024-12-01 13:22:54,300 INFO L471 AbstractCegarLoop]: Abstraction has has 642 places, 1869 transitions, 61761 flow [2024-12-01 13:22:54,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:22:54,300 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:22:54,300 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:22:54,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-01 13:22:54,300 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:22:54,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:22:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1472051362, now seen corresponding path program 7 times [2024-12-01 13:22:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:22:54,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99819699] [2024-12-01 13:22:54,302 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:22:54,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:22:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:00,264 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:23:00,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:23:00,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99819699] [2024-12-01 13:23:00,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99819699] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:23:00,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720251077] [2024-12-01 13:23:00,264 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:23:00,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:23:00,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:23:00,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:23:00,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-01 13:23:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:23:00,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-12-01 13:23:00,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:23:01,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:23:01,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:23:01,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:23:01,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:23:01,355 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:23:01,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:23:01,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2024-12-01 13:23:01,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2024-12-01 13:23:01,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-01 13:23:01,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:23:01,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:01,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:23:02,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:02,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:02,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:02,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:23:02,048 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:23:02,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:23:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 233 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-01 13:23:14,179 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:23:17,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 122 [2024-12-01 13:23:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:23:17,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720251077] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:23:17,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:23:17,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12, 31] total 54 [2024-12-01 13:23:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563229087] [2024-12-01 13:23:17,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:23:17,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-01 13:23:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:23:17,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-01 13:23:17,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=2701, Unknown=3, NotChecked=0, Total=2970 [2024-12-01 13:23:46,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:23:46,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 1869 transitions, 61761 flow. Second operand has 14 states, 14 states have (on average 127.35714285714286) internal successors, (1783), 14 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:23:46,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:23:46,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:23:46,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:24:04,381 INFO L124 PetriNetUnfolderBase]: 3319/10730 cut-off events. [2024-12-01 13:24:04,381 INFO L125 PetriNetUnfolderBase]: For 592658/594627 co-relation queries the response was YES. [2024-12-01 13:24:04,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100799 conditions, 10730 events. 3319/10730 cut-off events. For 592658/594627 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 115622 event pairs, 215 based on Foata normal form. 823/11508 useless extension candidates. Maximal degree in co-relation 100361. Up to 2642 conditions per place. [2024-12-01 13:24:04,512 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 853 selfloop transitions, 958 changer transitions 21/2108 dead transitions. [2024-12-01 13:24:04,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 2108 transitions, 70312 flow [2024-12-01 13:24:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:24:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-12-01 13:24:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2702 transitions. [2024-12-01 13:24:04,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8391304347826087 [2024-12-01 13:24:04,515 INFO L175 Difference]: Start difference. First operand has 642 places, 1869 transitions, 61761 flow. Second operand 20 states and 2702 transitions. [2024-12-01 13:24:04,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 2108 transitions, 70312 flow [2024-12-01 13:24:07,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 2108 transitions, 69465 flow, removed 113 selfloop flow, removed 5 redundant places. [2024-12-01 13:24:07,773 INFO L231 Difference]: Finished difference. Result has 663 places, 1927 transitions, 64696 flow [2024-12-01 13:24:07,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=60982, PETRI_DIFFERENCE_MINUEND_PLACES=637, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=901, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=64696, PETRI_PLACES=663, PETRI_TRANSITIONS=1927} [2024-12-01 13:24:07,774 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 503 predicate places. [2024-12-01 13:24:07,774 INFO L471 AbstractCegarLoop]: Abstraction has has 663 places, 1927 transitions, 64696 flow [2024-12-01 13:24:07,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.35714285714286) internal successors, (1783), 14 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:07,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:24:07,775 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:07,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-01 13:24:07,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-01 13:24:07,975 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:24:07,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:07,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1206376278, now seen corresponding path program 8 times [2024-12-01 13:24:07,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:07,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235254859] [2024-12-01 13:24:07,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:24:07,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:08,002 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:24:08,003 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:24:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:24:09,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:09,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235254859] [2024-12-01 13:24:09,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235254859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:09,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:09,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:24:09,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598656223] [2024-12-01 13:24:09,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:09,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:24:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:09,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:24:09,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:24:10,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:24:10,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1927 transitions, 64696 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:10,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:24:10,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:24:10,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:24:15,724 INFO L124 PetriNetUnfolderBase]: 2902/9886 cut-off events. [2024-12-01 13:24:15,724 INFO L125 PetriNetUnfolderBase]: For 580786/582593 co-relation queries the response was YES. [2024-12-01 13:24:15,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95705 conditions, 9886 events. 2902/9886 cut-off events. For 580786/582593 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 107665 event pairs, 102 based on Foata normal form. 670/10493 useless extension candidates. Maximal degree in co-relation 95261. Up to 3299 conditions per place. [2024-12-01 13:24:15,974 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 757 selfloop transitions, 623 changer transitions 11/1959 dead transitions. [2024-12-01 13:24:15,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 673 places, 1959 transitions, 68033 flow [2024-12-01 13:24:15,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:24:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:24:15,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1539 transitions. [2024-12-01 13:24:15,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8690005646527386 [2024-12-01 13:24:15,975 INFO L175 Difference]: Start difference. First operand has 663 places, 1927 transitions, 64696 flow. Second operand 11 states and 1539 transitions. [2024-12-01 13:24:15,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 673 places, 1959 transitions, 68033 flow [2024-12-01 13:24:19,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 664 places, 1959 transitions, 66346 flow, removed 169 selfloop flow, removed 9 redundant places. [2024-12-01 13:24:19,126 INFO L231 Difference]: Finished difference. Result has 665 places, 1920 transitions, 64362 flow [2024-12-01 13:24:19,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=63017, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1927, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=623, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=64362, PETRI_PLACES=665, PETRI_TRANSITIONS=1920} [2024-12-01 13:24:19,128 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 505 predicate places. [2024-12-01 13:24:19,128 INFO L471 AbstractCegarLoop]: Abstraction has has 665 places, 1920 transitions, 64362 flow [2024-12-01 13:24:19,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:19,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:24:19,128 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:19,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-01 13:24:19,129 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:24:19,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:19,132 INFO L85 PathProgramCache]: Analyzing trace with hash 803040988, now seen corresponding path program 9 times [2024-12-01 13:24:19,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:19,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050543196] [2024-12-01 13:24:19,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:24:19,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:19,162 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:24:19,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:24:20,687 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:24:20,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:20,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050543196] [2024-12-01 13:24:20,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050543196] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:24:20,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:24:20,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:24:20,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388932149] [2024-12-01 13:24:20,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:20,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:24:20,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:20,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:24:20,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:24:22,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:24:22,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 665 places, 1920 transitions, 64362 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:22,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:24:22,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:24:22,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:24:27,689 INFO L124 PetriNetUnfolderBase]: 3007/10239 cut-off events. [2024-12-01 13:24:27,689 INFO L125 PetriNetUnfolderBase]: For 643564/645573 co-relation queries the response was YES. [2024-12-01 13:24:27,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99547 conditions, 10239 events. 3007/10239 cut-off events. For 643564/645573 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 112599 event pairs, 111 based on Foata normal form. 766/10939 useless extension candidates. Maximal degree in co-relation 99104. Up to 3218 conditions per place. [2024-12-01 13:24:27,843 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 677 selfloop transitions, 814 changer transitions 9/2068 dead transitions. [2024-12-01 13:24:27,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 678 places, 2068 transitions, 72930 flow [2024-12-01 13:24:27,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:24:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:24:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1961 transitions. [2024-12-01 13:24:27,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8700088731144632 [2024-12-01 13:24:27,845 INFO L175 Difference]: Start difference. First operand has 665 places, 1920 transitions, 64362 flow. Second operand 14 states and 1961 transitions. [2024-12-01 13:24:27,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 678 places, 2068 transitions, 72930 flow [2024-12-01 13:24:31,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 672 places, 2068 transitions, 71816 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-12-01 13:24:31,428 INFO L231 Difference]: Finished difference. Result has 677 places, 2010 transitions, 70060 flow [2024-12-01 13:24:31,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=63337, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1920, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=724, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=70060, PETRI_PLACES=677, PETRI_TRANSITIONS=2010} [2024-12-01 13:24:31,429 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 517 predicate places. [2024-12-01 13:24:31,429 INFO L471 AbstractCegarLoop]: Abstraction has has 677 places, 2010 transitions, 70060 flow [2024-12-01 13:24:31,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:24:31,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:24:31,430 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:24:31,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-01 13:24:31,430 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:24:31,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:24:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash -620405092, now seen corresponding path program 10 times [2024-12-01 13:24:31,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:24:31,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032583111] [2024-12-01 13:24:31,432 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:24:31,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:24:31,454 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:24:31,454 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:24:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:24:33,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:24:33,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032583111] [2024-12-01 13:24:33,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032583111] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:33,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947310372] [2024-12-01 13:24:33,225 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:24:33,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:24:33,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:24:33,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:24:33,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-01 13:24:33,400 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:24:33,400 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:24:33,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-12-01 13:24:33,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:24:34,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:24:34,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:24:34,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:24:34,352 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:24:34,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:24:34,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-12-01 13:24:34,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 27 [2024-12-01 13:24:34,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-12-01 13:24:34,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2024-12-01 13:24:34,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2024-12-01 13:24:34,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:34,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:24:35,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:35,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:35,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:24:35,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:24:35,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:24:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-01 13:24:39,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:24:46,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 138 [2024-12-01 13:24:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:24:46,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947310372] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:24:46,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:24:46,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 29] total 54 [2024-12-01 13:24:46,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928322532] [2024-12-01 13:24:46,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:24:46,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:24:46,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:24:46,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:24:46,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2684, Unknown=1, NotChecked=0, Total=2970 [2024-12-01 13:25:49,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-12-01 13:26:02,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 161 [2024-12-01 13:26:02,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 677 places, 2010 transitions, 70060 flow. Second operand has 15 states, 15 states have (on average 126.26666666666667) internal successors, (1894), 15 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:26:02,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:26:02,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 161 [2024-12-01 13:26:02,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:26:32,655 INFO L124 PetriNetUnfolderBase]: 3660/11883 cut-off events. [2024-12-01 13:26:32,655 INFO L125 PetriNetUnfolderBase]: For 773371/775783 co-relation queries the response was YES. [2024-12-01 13:26:32,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118032 conditions, 11883 events. 3660/11883 cut-off events. For 773371/775783 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 131891 event pairs, 229 based on Foata normal form. 1063/12881 useless extension candidates. Maximal degree in co-relation 117584. Up to 2609 conditions per place. [2024-12-01 13:26:32,818 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 997 selfloop transitions, 1106 changer transitions 23/2393 dead transitions. [2024-12-01 13:26:32,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 694 places, 2393 transitions, 85768 flow [2024-12-01 13:26:32,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-01 13:26:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-01 13:26:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2439 transitions. [2024-12-01 13:26:32,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8416149068322981 [2024-12-01 13:26:32,820 INFO L175 Difference]: Start difference. First operand has 677 places, 2010 transitions, 70060 flow. Second operand 18 states and 2439 transitions. [2024-12-01 13:26:32,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 694 places, 2393 transitions, 85768 flow [2024-12-01 13:26:37,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 687 places, 2393 transitions, 84625 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-12-01 13:26:37,685 INFO L231 Difference]: Finished difference. Result has 697 places, 2175 transitions, 79706 flow [2024-12-01 13:26:37,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=69043, PETRI_DIFFERENCE_MINUEND_PLACES=670, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2010, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=943, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=79706, PETRI_PLACES=697, PETRI_TRANSITIONS=2175} [2024-12-01 13:26:37,686 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 537 predicate places. [2024-12-01 13:26:37,686 INFO L471 AbstractCegarLoop]: Abstraction has has 697 places, 2175 transitions, 79706 flow [2024-12-01 13:26:37,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.26666666666667) internal successors, (1894), 15 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:26:37,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:26:37,687 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:26:37,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-12-01 13:26:37,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-01 13:26:37,888 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:26:37,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:26:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1306349732, now seen corresponding path program 11 times [2024-12-01 13:26:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:26:37,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561986002] [2024-12-01 13:26:37,892 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-01 13:26:37,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:26:37,925 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-12-01 13:26:37,925 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:26:39,220 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:26:39,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:26:39,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561986002] [2024-12-01 13:26:39,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561986002] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:26:39,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:26:39,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:26:39,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526360048] [2024-12-01 13:26:39,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:26:39,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:26:39,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:26:39,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:26:39,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:26:40,925 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:26:40,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 697 places, 2175 transitions, 79706 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:26:40,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:26:40,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:26:40,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:26:47,766 INFO L124 PetriNetUnfolderBase]: 3182/10902 cut-off events. [2024-12-01 13:26:47,766 INFO L125 PetriNetUnfolderBase]: For 779318/781568 co-relation queries the response was YES. [2024-12-01 13:26:47,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112188 conditions, 10902 events. 3182/10902 cut-off events. For 779318/781568 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 121881 event pairs, 113 based on Foata normal form. 664/11486 useless extension candidates. Maximal degree in co-relation 111730. Up to 3345 conditions per place. [2024-12-01 13:26:47,908 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 752 selfloop transitions, 875 changer transitions 17/2221 dead transitions. [2024-12-01 13:26:47,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 2221 transitions, 83848 flow [2024-12-01 13:26:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:26:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:26:47,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1543 transitions. [2024-12-01 13:26:47,909 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8712591756070017 [2024-12-01 13:26:47,909 INFO L175 Difference]: Start difference. First operand has 697 places, 2175 transitions, 79706 flow. Second operand 11 states and 1543 transitions. [2024-12-01 13:26:47,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 2221 transitions, 83848 flow [2024-12-01 13:26:52,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 706 places, 2221 transitions, 83485 flow, removed 159 selfloop flow, removed 1 redundant places. [2024-12-01 13:26:52,375 INFO L231 Difference]: Finished difference. Result has 709 places, 2165 transitions, 81524 flow [2024-12-01 13:26:52,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=79353, PETRI_DIFFERENCE_MINUEND_PLACES=696, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=874, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=81524, PETRI_PLACES=709, PETRI_TRANSITIONS=2165} [2024-12-01 13:26:52,377 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 549 predicate places. [2024-12-01 13:26:52,377 INFO L471 AbstractCegarLoop]: Abstraction has has 709 places, 2165 transitions, 81524 flow [2024-12-01 13:26:52,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:26:52,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:26:52,377 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:26:52,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-01 13:26:52,377 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:26:52,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:26:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1825753414, now seen corresponding path program 12 times [2024-12-01 13:26:52,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:26:52,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414863217] [2024-12-01 13:26:52,379 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-01 13:26:52,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:26:52,401 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-01 13:26:52,402 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:26:56,060 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:26:56,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:26:56,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414863217] [2024-12-01 13:26:56,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414863217] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:26:56,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:26:56,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:26:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478417879] [2024-12-01 13:26:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:26:56,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:26:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:26:56,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:26:56,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:26:57,462 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:26:57,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 709 places, 2165 transitions, 81524 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:26:57,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:26:57,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:26:57,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:27:04,844 INFO L124 PetriNetUnfolderBase]: 3325/11338 cut-off events. [2024-12-01 13:27:04,844 INFO L125 PetriNetUnfolderBase]: For 907454/910096 co-relation queries the response was YES. [2024-12-01 13:27:04,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120572 conditions, 11338 events. 3325/11338 cut-off events. For 907454/910096 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 128080 event pairs, 120 based on Foata normal form. 1018/12266 useless extension candidates. Maximal degree in co-relation 120111. Up to 3289 conditions per place. [2024-12-01 13:27:04,990 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 730 selfloop transitions, 1056 changer transitions 14/2377 dead transitions. [2024-12-01 13:27:04,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 2377 transitions, 93100 flow [2024-12-01 13:27:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-01 13:27:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-12-01 13:27:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1965 transitions. [2024-12-01 13:27:04,991 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8717834960070985 [2024-12-01 13:27:04,991 INFO L175 Difference]: Start difference. First operand has 709 places, 2165 transitions, 81524 flow. Second operand 14 states and 1965 transitions. [2024-12-01 13:27:04,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 2377 transitions, 93100 flow [2024-12-01 13:27:09,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 716 places, 2377 transitions, 91798 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-12-01 13:27:09,944 INFO L231 Difference]: Finished difference. Result has 724 places, 2298 transitions, 89593 flow [2024-12-01 13:27:09,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=80395, PETRI_DIFFERENCE_MINUEND_PLACES=703, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=942, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=89593, PETRI_PLACES=724, PETRI_TRANSITIONS=2298} [2024-12-01 13:27:09,945 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 564 predicate places. [2024-12-01 13:27:09,945 INFO L471 AbstractCegarLoop]: Abstraction has has 724 places, 2298 transitions, 89593 flow [2024-12-01 13:27:09,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:27:09,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:27:09,946 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:27:09,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-01 13:27:09,946 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:27:09,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:27:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash 108841926, now seen corresponding path program 13 times [2024-12-01 13:27:09,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:27:09,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473653616] [2024-12-01 13:27:09,948 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:27:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:27:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:27:17,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:27:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473653616] [2024-12-01 13:27:17,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473653616] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:27:17,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374418514] [2024-12-01 13:27:17,447 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-01 13:27:17,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:27:17,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:27:17,449 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:27:17,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-01 13:27:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 13:27:17,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-01 13:27:17,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:27:17,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:27:17,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:27:18,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:27:18,135 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:27:18,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:27:18,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2024-12-01 13:27:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 27 [2024-12-01 13:27:18,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:27:18,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-01 13:27:18,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:27:18,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:18,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:27:19,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:19,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:19,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:19,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:27:19,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:27:19,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:27:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-12-01 13:27:31,129 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:27:34,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 122 [2024-12-01 13:27:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:27:35,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374418514] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:27:35,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:27:35,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [12, 15] total 38 [2024-12-01 13:27:35,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478477737] [2024-12-01 13:27:35,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:27:35,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:27:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:27:35,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:27:35,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1221, Unknown=3, NotChecked=0, Total=1482 [2024-12-01 13:28:32,066 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 161 [2024-12-01 13:28:32,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 724 places, 2298 transitions, 89593 flow. Second operand has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:28:32,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:28:32,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 161 [2024-12-01 13:28:32,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:29:01,678 INFO L124 PetriNetUnfolderBase]: 4021/13174 cut-off events. [2024-12-01 13:29:01,678 INFO L125 PetriNetUnfolderBase]: For 1071299/1074156 co-relation queries the response was YES. [2024-12-01 13:29:01,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142835 conditions, 13174 events. 4021/13174 cut-off events. For 1071299/1074156 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 150248 event pairs, 244 based on Foata normal form. 1161/14275 useless extension candidates. Maximal degree in co-relation 142367. Up to 2773 conditions per place. [2024-12-01 13:29:02,152 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 1116 selfloop transitions, 1323 changer transitions 29/2736 dead transitions. [2024-12-01 13:29:02,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 743 places, 2736 transitions, 108036 flow [2024-12-01 13:29:02,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-01 13:29:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-12-01 13:29:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2024-12-01 13:29:02,153 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.84472049689441 [2024-12-01 13:29:02,153 INFO L175 Difference]: Start difference. First operand has 724 places, 2298 transitions, 89593 flow. Second operand 20 states and 2720 transitions. [2024-12-01 13:29:02,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 743 places, 2736 transitions, 108036 flow [2024-12-01 13:29:08,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 742 places, 2736 transitions, 107737 flow, removed 122 selfloop flow, removed 1 redundant places. [2024-12-01 13:29:08,571 INFO L231 Difference]: Finished difference. Result has 755 places, 2464 transitions, 101468 flow [2024-12-01 13:29:08,572 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=89400, PETRI_DIFFERENCE_MINUEND_PLACES=723, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=101468, PETRI_PLACES=755, PETRI_TRANSITIONS=2464} [2024-12-01 13:29:08,572 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 595 predicate places. [2024-12-01 13:29:08,572 INFO L471 AbstractCegarLoop]: Abstraction has has 755 places, 2464 transitions, 101468 flow [2024-12-01 13:29:08,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 127.26666666666667) internal successors, (1909), 15 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:29:08,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:29:08,572 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:08,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-12-01 13:29:08,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:29:08,773 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:29:08,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:08,775 INFO L85 PathProgramCache]: Analyzing trace with hash 115213814, now seen corresponding path program 14 times [2024-12-01 13:29:08,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:08,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775183421] [2024-12-01 13:29:08,775 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 13:29:08,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:08,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 13:29:08,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:29:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:29:09,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:09,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775183421] [2024-12-01 13:29:09,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775183421] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:29:09,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:29:09,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:29:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087335413] [2024-12-01 13:29:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:29:09,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:29:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:29:09,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:29:09,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:29:11,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:29:11,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 755 places, 2464 transitions, 101468 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:29:11,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:29:11,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:29:11,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:29:20,409 INFO L124 PetriNetUnfolderBase]: 3596/12279 cut-off events. [2024-12-01 13:29:20,409 INFO L125 PetriNetUnfolderBase]: For 1137148/1140147 co-relation queries the response was YES. [2024-12-01 13:29:20,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139857 conditions, 12279 events. 3596/12279 cut-off events. For 1137148/1140147 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 141299 event pairs, 120 based on Foata normal form. 1129/13313 useless extension candidates. Maximal degree in co-relation 139376. Up to 3442 conditions per place. [2024-12-01 13:29:20,593 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 804 selfloop transitions, 1180 changer transitions 15/2586 dead transitions. [2024-12-01 13:29:20,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 767 places, 2586 transitions, 109025 flow [2024-12-01 13:29:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-01 13:29:20,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-12-01 13:29:20,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1833 transitions. [2024-12-01 13:29:20,595 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8757763975155279 [2024-12-01 13:29:20,595 INFO L175 Difference]: Start difference. First operand has 755 places, 2464 transitions, 101468 flow. Second operand 13 states and 1833 transitions. [2024-12-01 13:29:20,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 767 places, 2586 transitions, 109025 flow [2024-12-01 13:29:27,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 2586 transitions, 108577 flow, removed 183 selfloop flow, removed 3 redundant places. [2024-12-01 13:29:27,693 INFO L231 Difference]: Finished difference. Result has 770 places, 2500 transitions, 106237 flow [2024-12-01 13:29:27,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=101045, PETRI_DIFFERENCE_MINUEND_PLACES=752, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=106237, PETRI_PLACES=770, PETRI_TRANSITIONS=2500} [2024-12-01 13:29:27,694 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 610 predicate places. [2024-12-01 13:29:27,694 INFO L471 AbstractCegarLoop]: Abstraction has has 770 places, 2500 transitions, 106237 flow [2024-12-01 13:29:27,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:29:27,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:29:27,695 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:27,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-01 13:29:27,695 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:29:27,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1342260498, now seen corresponding path program 15 times [2024-12-01 13:29:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:27,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725330881] [2024-12-01 13:29:27,697 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-01 13:29:27,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:27,724 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-01 13:29:27,725 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:29:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:29:28,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725330881] [2024-12-01 13:29:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725330881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 13:29:28,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 13:29:28,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-01 13:29:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640577816] [2024-12-01 13:29:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:29:28,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-01 13:29:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:29:28,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-01 13:29:28,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-01 13:29:30,444 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 161 [2024-12-01 13:29:30,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 770 places, 2500 transitions, 106237 flow. Second operand has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:29:30,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 13:29:30,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 161 [2024-12-01 13:29:30,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 13:29:39,311 INFO L124 PetriNetUnfolderBase]: 3571/12195 cut-off events. [2024-12-01 13:29:39,312 INFO L125 PetriNetUnfolderBase]: For 1190074/1193047 co-relation queries the response was YES. [2024-12-01 13:29:39,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141938 conditions, 12195 events. 3571/12195 cut-off events. For 1190074/1193047 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 140318 event pairs, 117 based on Foata normal form. 728/12828 useless extension candidates. Maximal degree in co-relation 141451. Up to 3439 conditions per place. [2024-12-01 13:29:39,495 INFO L140 encePairwiseOnDemand]: 145/161 looper letters, 875 selfloop transitions, 1085 changer transitions 14/2561 dead transitions. [2024-12-01 13:29:39,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 780 places, 2561 transitions, 111474 flow [2024-12-01 13:29:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 13:29:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 13:29:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1545 transitions. [2024-12-01 13:29:39,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8723884810841332 [2024-12-01 13:29:39,497 INFO L175 Difference]: Start difference. First operand has 770 places, 2500 transitions, 106237 flow. Second operand 11 states and 1545 transitions. [2024-12-01 13:29:39,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 780 places, 2561 transitions, 111474 flow [2024-12-01 13:29:46,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 773 places, 2561 transitions, 109954 flow, removed 68 selfloop flow, removed 7 redundant places. [2024-12-01 13:29:46,584 INFO L231 Difference]: Finished difference. Result has 777 places, 2500 transitions, 107846 flow [2024-12-01 13:29:46,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=104731, PETRI_DIFFERENCE_MINUEND_PLACES=763, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1079, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=107846, PETRI_PLACES=777, PETRI_TRANSITIONS=2500} [2024-12-01 13:29:46,585 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 617 predicate places. [2024-12-01 13:29:46,585 INFO L471 AbstractCegarLoop]: Abstraction has has 777 places, 2500 transitions, 107846 flow [2024-12-01 13:29:46,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 133.4) internal successors, (1334), 10 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 13:29:46,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 13:29:46,586 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 13:29:46,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-01 13:29:46,586 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-12-01 13:29:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 13:29:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1609901756, now seen corresponding path program 16 times [2024-12-01 13:29:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 13:29:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485628705] [2024-12-01 13:29:46,588 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:29:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 13:29:46,612 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:29:46,612 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:29:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2024-12-01 13:29:48,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 13:29:48,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485628705] [2024-12-01 13:29:48,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485628705] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 13:29:48,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915053940] [2024-12-01 13:29:48,227 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-01 13:29:48,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 13:29:48,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 13:29:48,229 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 13:29:48,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f370db6f-d3a9-4804-aa62-5aed169957b1/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-01 13:29:48,414 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-01 13:29:48,414 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 13:29:48,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-12-01 13:29:48,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 13:29:49,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-12-01 13:29:49,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-12-01 13:29:49,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-12-01 13:29:49,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-12-01 13:29:49,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2024-12-01 13:29:49,625 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2024-12-01 13:29:49,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-12-01 13:29:49,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 55 [2024-12-01 13:29:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2024-12-01 13:29:49,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 64 [2024-12-01 13:29:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:49,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 76 [2024-12-01 13:29:50,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:50,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:50,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-01 13:29:50,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-01 13:29:50,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 97 [2024-12-01 13:30:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-01 13:30:06,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 13:30:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2024-12-01 13:30:09,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915053940] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-01 13:30:09,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-01 13:30:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 29] total 54 [2024-12-01 13:30:09,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220480428] [2024-12-01 13:30:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 13:30:09,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-01 13:30:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 13:30:09,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-01 13:30:09,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2635, Unknown=4, NotChecked=0, Total=2970