./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme --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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:44:36,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:44:36,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:44:36,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:44:36,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:44:36,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:44:36,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:44:36,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:44:36,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:44:36,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:44:36,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:44:36,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:44:36,452 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:44:36,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:44:36,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:44:36,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:44:36,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:44:36,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:44:36,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:44:36,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:44:36,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:44:36,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:44:36,458 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:44:36,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:44:36,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:44:36,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:44:36,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:44:36,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:44:36,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:44:36,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:44:36,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:36,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:44:36,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:44:36,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:44:36,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:44:36,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:44:36,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:44:36,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:44:36,467 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:44:36,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:44:36,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:44:36,472 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2023-11-26 11:44:36,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:44:36,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:44:36,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:44:36,782 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:44:36,782 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:44:36,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2023-11-26 11:44:40,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:44:40,367 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:44:40,370 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2023-11-26 11:44:40,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/data/940118478/8df95d05760f4233a375586be0cbdc59/FLAG0ea1013ce [2023-11-26 11:44:40,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/data/940118478/8df95d05760f4233a375586be0cbdc59 [2023-11-26 11:44:40,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:44:40,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:44:40,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:40,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:44:40,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:44:40,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:40" (1/1) ... [2023-11-26 11:44:40,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc2bcb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:40, skipping insertion in model container [2023-11-26 11:44:40,436 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:44:40" (1/1) ... [2023-11-26 11:44:40,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:44:41,020 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:41,037 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:44:41,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:44:41,156 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:44:41,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41 WrapperNode [2023-11-26 11:44:41,157 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:44:41,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:41,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:44:41,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:44:41,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,231 INFO L138 Inliner]: procedures = 244, calls = 55, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-26 11:44:41,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:44:41,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:44:41,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:44:41,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:44:41,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,254 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,350 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:44:41,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:44:41,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:44:41,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:44:41,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (1/1) ... [2023-11-26 11:44:41,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:44:41,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:41,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:44:41,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:44:41,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:44:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:44:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-26 11:44:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 11:44:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:44:41,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:44:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:44:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:44:41,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:44:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:44:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 11:44:41,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:44:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:44:41,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:44:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:44:41,481 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:44:41,678 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:44:41,681 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:44:42,054 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:44:42,097 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:44:42,097 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 11:44:42,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:42 BoogieIcfgContainer [2023-11-26 11:44:42,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:44:42,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:44:42,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:44:42,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:44:42,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:44:40" (1/3) ... [2023-11-26 11:44:42,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ff8634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:42, skipping insertion in model container [2023-11-26 11:44:42,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:44:41" (2/3) ... [2023-11-26 11:44:42,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ff8634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:44:42, skipping insertion in model container [2023-11-26 11:44:42,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:42" (3/3) ... [2023-11-26 11:44:42,109 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2023-11-26 11:44:42,117 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:44:42,128 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:44:42,133 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-26 11:44:42,133 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:44:42,222 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 11:44:42,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 210 transitions, 434 flow [2023-11-26 11:44:42,360 INFO L124 PetriNetUnfolderBase]: 11/208 cut-off events. [2023-11-26 11:44:42,360 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:44:42,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 208 events. 11/208 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2023-11-26 11:44:42,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 210 transitions, 434 flow [2023-11-26 11:44:42,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 189 transitions, 390 flow [2023-11-26 11:44:42,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:44:42,393 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@12b75e35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:44:42,393 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-26 11:44:42,406 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:44:42,407 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-26 11:44:42,407 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:44:42,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:42,408 INFO L208 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] [2023-11-26 11:44:42,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:42,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -474306195, now seen corresponding path program 1 times [2023-11-26 11:44:42,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:42,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921836749] [2023-11-26 11:44:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921836749] [2023-11-26 11:44:42,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921836749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:42,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:42,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:42,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030749229] [2023-11-26 11:44:42,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:42,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:42,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:42,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:42,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 210 [2023-11-26 11:44:42,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 189 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:42,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:42,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 210 [2023-11-26 11:44:42,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:43,252 INFO L124 PetriNetUnfolderBase]: 100/565 cut-off events. [2023-11-26 11:44:43,253 INFO L125 PetriNetUnfolderBase]: For 63/67 co-relation queries the response was YES. [2023-11-26 11:44:43,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 565 events. 100/565 cut-off events. For 63/67 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2920 event pairs, 63 based on Foata normal form. 26/517 useless extension candidates. Maximal degree in co-relation 623. Up to 173 conditions per place. [2023-11-26 11:44:43,266 INFO L140 encePairwiseOnDemand]: 203/210 looper letters, 21 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2023-11-26 11:44:43,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 184 transitions, 426 flow [2023-11-26 11:44:43,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:43,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2023-11-26 11:44:43,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8920634920634921 [2023-11-26 11:44:43,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2023-11-26 11:44:43,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2023-11-26 11:44:43,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:43,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2023-11-26 11:44:43,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,319 INFO L175 Difference]: Start difference. First operand has 188 places, 189 transitions, 390 flow. Second operand 3 states and 562 transitions. [2023-11-26 11:44:43,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 184 transitions, 426 flow [2023-11-26 11:44:43,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 184 transitions, 418 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:44:43,332 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 376 flow [2023-11-26 11:44:43,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2023-11-26 11:44:43,338 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2023-11-26 11:44:43,339 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 376 flow [2023-11-26 11:44:43,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:43,340 INFO L208 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] [2023-11-26 11:44:43,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:44:43,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:43,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:43,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1786965581, now seen corresponding path program 1 times [2023-11-26 11:44:43,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:43,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541555299] [2023-11-26 11:44:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:43,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:43,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:43,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541555299] [2023-11-26 11:44:43,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541555299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:43,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:43,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:43,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631170792] [2023-11-26 11:44:43,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:43,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:43,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:43,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:43,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:43,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 210 [2023-11-26 11:44:43,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 376 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:43,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 210 [2023-11-26 11:44:43,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:43,712 INFO L124 PetriNetUnfolderBase]: 85/590 cut-off events. [2023-11-26 11:44:43,712 INFO L125 PetriNetUnfolderBase]: For 19/20 co-relation queries the response was YES. [2023-11-26 11:44:43,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 590 events. 85/590 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3284 event pairs, 44 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 684. Up to 137 conditions per place. [2023-11-26 11:44:43,719 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 20 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2023-11-26 11:44:43,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 183 transitions, 418 flow [2023-11-26 11:44:43,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:43,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:43,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-11-26 11:44:43,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2023-11-26 11:44:43,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-11-26 11:44:43,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-11-26 11:44:43,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:43,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-11-26 11:44:43,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,732 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 376 flow. Second operand 3 states and 560 transitions. [2023-11-26 11:44:43,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 183 transitions, 418 flow [2023-11-26 11:44:43,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 183 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:43,742 INFO L231 Difference]: Finished difference. Result has 184 places, 183 transitions, 374 flow [2023-11-26 11:44:43,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=184, PETRI_TRANSITIONS=183} [2023-11-26 11:44:43,743 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -4 predicate places. [2023-11-26 11:44:43,743 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 183 transitions, 374 flow [2023-11-26 11:44:43,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:43,749 INFO L208 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] [2023-11-26 11:44:43,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:44:43,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:43,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash 32926186, now seen corresponding path program 1 times [2023-11-26 11:44:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:43,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787900310] [2023-11-26 11:44:43,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:43,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:43,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:43,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:43,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787900310] [2023-11-26 11:44:43,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787900310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:43,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:43,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805013578] [2023-11-26 11:44:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:43,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:43,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:43,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:43,904 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 210 [2023-11-26 11:44:43,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 183 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:43,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:43,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 210 [2023-11-26 11:44:43,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:44,199 INFO L124 PetriNetUnfolderBase]: 212/1184 cut-off events. [2023-11-26 11:44:44,200 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2023-11-26 11:44:44,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1184 events. 212/1184 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7920 event pairs, 58 based on Foata normal form. 0/1032 useless extension candidates. Maximal degree in co-relation 1552. Up to 270 conditions per place. [2023-11-26 11:44:44,215 INFO L140 encePairwiseOnDemand]: 196/210 looper letters, 37 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2023-11-26 11:44:44,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 203 transitions, 510 flow [2023-11-26 11:44:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:44,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 579 transitions. [2023-11-26 11:44:44,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.919047619047619 [2023-11-26 11:44:44,220 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 579 transitions. [2023-11-26 11:44:44,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 579 transitions. [2023-11-26 11:44:44,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:44,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 579 transitions. [2023-11-26 11:44:44,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,227 INFO L175 Difference]: Start difference. First operand has 184 places, 183 transitions, 374 flow. Second operand 3 states and 579 transitions. [2023-11-26 11:44:44,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 203 transitions, 510 flow [2023-11-26 11:44:44,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 203 transitions, 506 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:44,236 INFO L231 Difference]: Finished difference. Result has 186 places, 193 transitions, 458 flow [2023-11-26 11:44:44,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=186, PETRI_TRANSITIONS=193} [2023-11-26 11:44:44,239 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -2 predicate places. [2023-11-26 11:44:44,239 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 193 transitions, 458 flow [2023-11-26 11:44:44,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:44,240 INFO L208 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] [2023-11-26 11:44:44,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:44:44,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:44,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash -201451634, now seen corresponding path program 1 times [2023-11-26 11:44:44,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:44,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785914505] [2023-11-26 11:44:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:44,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:44,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:44,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785914505] [2023-11-26 11:44:44,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785914505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:44,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:44,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:44,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664151577] [2023-11-26 11:44:44,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:44,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:44,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:44,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-26 11:44:44,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 193 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:44,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-26 11:44:44,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:44,852 INFO L124 PetriNetUnfolderBase]: 271/1793 cut-off events. [2023-11-26 11:44:44,852 INFO L125 PetriNetUnfolderBase]: For 123/128 co-relation queries the response was YES. [2023-11-26 11:44:44,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 1793 events. 271/1793 cut-off events. For 123/128 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13268 event pairs, 91 based on Foata normal form. 6/1585 useless extension candidates. Maximal degree in co-relation 2117. Up to 260 conditions per place. [2023-11-26 11:44:44,874 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 24 selfloop transitions, 2 changer transitions 0/203 dead transitions. [2023-11-26 11:44:44,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 203 transitions, 531 flow [2023-11-26 11:44:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:44,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:44,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2023-11-26 11:44:44,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2023-11-26 11:44:44,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2023-11-26 11:44:44,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2023-11-26 11:44:44,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:44,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2023-11-26 11:44:44,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,886 INFO L175 Difference]: Start difference. First operand has 186 places, 193 transitions, 458 flow. Second operand 3 states and 588 transitions. [2023-11-26 11:44:44,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 203 transitions, 531 flow [2023-11-26 11:44:44,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 203 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:44,896 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 450 flow [2023-11-26 11:44:44,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2023-11-26 11:44:44,898 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-26 11:44:44,898 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 450 flow [2023-11-26 11:44:44,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:44,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:44,900 INFO L208 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] [2023-11-26 11:44:44,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:44,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:44,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:44,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1132928842, now seen corresponding path program 1 times [2023-11-26 11:44:44,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:44,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348752496] [2023-11-26 11:44:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:44,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:45,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:45,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348752496] [2023-11-26 11:44:45,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348752496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:45,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871217549] [2023-11-26 11:44:45,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:45,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:44:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:45,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:44:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:45,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-26 11:44:45,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 182.5) internal successors, (1095), 6 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:45,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:45,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-26 11:44:45,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:46,863 INFO L124 PetriNetUnfolderBase]: 1566/5452 cut-off events. [2023-11-26 11:44:46,863 INFO L125 PetriNetUnfolderBase]: For 16/110 co-relation queries the response was YES. [2023-11-26 11:44:46,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8316 conditions, 5452 events. 1566/5452 cut-off events. For 16/110 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 49569 event pairs, 152 based on Foata normal form. 22/4775 useless extension candidates. Maximal degree in co-relation 3645. Up to 803 conditions per place. [2023-11-26 11:44:46,922 INFO L140 encePairwiseOnDemand]: 205/210 looper letters, 47 selfloop transitions, 4 changer transitions 0/225 dead transitions. [2023-11-26 11:44:46,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 225 transitions, 614 flow [2023-11-26 11:44:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:44:46,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:44:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2023-11-26 11:44:46,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031746031746032 [2023-11-26 11:44:46,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1138 transitions. [2023-11-26 11:44:46,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1138 transitions. [2023-11-26 11:44:46,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:46,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1138 transitions. [2023-11-26 11:44:46,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.66666666666666) internal successors, (1138), 6 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:46,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:46,945 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 210.0) internal successors, (1470), 7 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:46,945 INFO L175 Difference]: Start difference. First operand has 187 places, 194 transitions, 450 flow. Second operand 6 states and 1138 transitions. [2023-11-26 11:44:46,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 225 transitions, 614 flow [2023-11-26 11:44:46,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 225 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:46,952 INFO L231 Difference]: Finished difference. Result has 190 places, 193 transitions, 454 flow [2023-11-26 11:44:46,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=190, PETRI_TRANSITIONS=193} [2023-11-26 11:44:46,956 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-26 11:44:46,957 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 193 transitions, 454 flow [2023-11-26 11:44:46,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.5) internal successors, (1095), 6 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:46,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:46,959 INFO L208 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] [2023-11-26 11:44:46,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:46,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:46,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:46,962 INFO L85 PathProgramCache]: Analyzing trace with hash -74971697, now seen corresponding path program 1 times [2023-11-26 11:44:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:46,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625646466] [2023-11-26 11:44:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:47,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625646466] [2023-11-26 11:44:47,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625646466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:47,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:47,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:47,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942696653] [2023-11-26 11:44:47,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:47,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:47,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:47,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:47,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:47,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 210 [2023-11-26 11:44:47,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 193 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:47,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 210 [2023-11-26 11:44:47,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:47,588 INFO L124 PetriNetUnfolderBase]: 461/2297 cut-off events. [2023-11-26 11:44:47,588 INFO L125 PetriNetUnfolderBase]: For 340/386 co-relation queries the response was YES. [2023-11-26 11:44:47,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 2297 events. 461/2297 cut-off events. For 340/386 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 17697 event pairs, 180 based on Foata normal form. 18/2043 useless extension candidates. Maximal degree in co-relation 3441. Up to 715 conditions per place. [2023-11-26 11:44:47,615 INFO L140 encePairwiseOnDemand]: 203/210 looper letters, 32 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2023-11-26 11:44:47,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 206 transitions, 577 flow [2023-11-26 11:44:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-11-26 11:44:47,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2023-11-26 11:44:47,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-11-26 11:44:47,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-11-26 11:44:47,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:47,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-11-26 11:44:47,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,626 INFO L175 Difference]: Start difference. First operand has 190 places, 193 transitions, 454 flow. Second operand 3 states and 574 transitions. [2023-11-26 11:44:47,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 206 transitions, 577 flow [2023-11-26 11:44:47,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 206 transitions, 570 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:44:47,634 INFO L231 Difference]: Finished difference. Result has 190 places, 201 transitions, 533 flow [2023-11-26 11:44:47,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=190, PETRI_TRANSITIONS=201} [2023-11-26 11:44:47,638 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-26 11:44:47,638 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 201 transitions, 533 flow [2023-11-26 11:44:47,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:47,639 INFO L208 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] [2023-11-26 11:44:47,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:44:47,640 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:47,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1927498116, now seen corresponding path program 1 times [2023-11-26 11:44:47,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:47,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447827608] [2023-11-26 11:44:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:47,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:47,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447827608] [2023-11-26 11:44:47,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447827608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:47,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:47,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778283502] [2023-11-26 11:44:47,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:47,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 210 [2023-11-26 11:44:47,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 201 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:47,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:47,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 210 [2023-11-26 11:44:47,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:47,985 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][106], [75#L914-4true, Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 235#true, 164#L880-1true, 243#(= ~num~0 0), Black: 217#true]) [2023-11-26 11:44:47,986 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2023-11-26 11:44:47,986 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2023-11-26 11:44:47,986 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-26 11:44:47,986 INFO L297 olderBase$Statistics]: existing Event has 80 ancestors and is cut-off event [2023-11-26 11:44:48,285 INFO L124 PetriNetUnfolderBase]: 516/2639 cut-off events. [2023-11-26 11:44:48,285 INFO L125 PetriNetUnfolderBase]: For 419/450 co-relation queries the response was YES. [2023-11-26 11:44:48,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 2639 events. 516/2639 cut-off events. For 419/450 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 20384 event pairs, 154 based on Foata normal form. 18/2340 useless extension candidates. Maximal degree in co-relation 4072. Up to 425 conditions per place. [2023-11-26 11:44:48,313 INFO L140 encePairwiseOnDemand]: 205/210 looper letters, 27 selfloop transitions, 3 changer transitions 0/212 dead transitions. [2023-11-26 11:44:48,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 212 transitions, 617 flow [2023-11-26 11:44:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 584 transitions. [2023-11-26 11:44:48,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926984126984127 [2023-11-26 11:44:48,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 584 transitions. [2023-11-26 11:44:48,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 584 transitions. [2023-11-26 11:44:48,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:48,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 584 transitions. [2023-11-26 11:44:48,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:48,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:48,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:48,323 INFO L175 Difference]: Start difference. First operand has 190 places, 201 transitions, 533 flow. Second operand 3 states and 584 transitions. [2023-11-26 11:44:48,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 212 transitions, 617 flow [2023-11-26 11:44:48,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 212 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:48,331 INFO L231 Difference]: Finished difference. Result has 192 places, 203 transitions, 537 flow [2023-11-26 11:44:48,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=537, PETRI_PLACES=192, PETRI_TRANSITIONS=203} [2023-11-26 11:44:48,333 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 4 predicate places. [2023-11-26 11:44:48,333 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 203 transitions, 537 flow [2023-11-26 11:44:48,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:48,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:48,335 INFO L208 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] [2023-11-26 11:44:48,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:44:48,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:48,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:48,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1248398250, now seen corresponding path program 1 times [2023-11-26 11:44:48,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:48,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315820741] [2023-11-26 11:44:48,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:48,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:48,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:48,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:48,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315820741] [2023-11-26 11:44:48,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315820741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:48,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:48,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:48,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809807] [2023-11-26 11:44:48,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:48,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:48,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:48,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:48,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:48,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-26 11:44:48,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 203 transitions, 537 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:48,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:48,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-26 11:44:48,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:48,620 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, Black: 217#true]) [2023-11-26 11:44:48,620 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is cut-off event [2023-11-26 11:44:48,620 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-26 11:44:48,621 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-26 11:44:48,621 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-26 11:44:48,654 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, 131#L894-1true, Black: 217#true]) [2023-11-26 11:44:48,654 INFO L294 olderBase$Statistics]: this new event has 113 ancestors and is cut-off event [2023-11-26 11:44:48,654 INFO L297 olderBase$Statistics]: existing Event has 99 ancestors and is cut-off event [2023-11-26 11:44:48,655 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-26 11:44:48,655 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-26 11:44:48,663 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 75#L914-4true, 225#(= thread2Thread1of1ForFork1_~j~0 0), 140#L894-2true, 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, Black: 217#true]) [2023-11-26 11:44:48,664 INFO L294 olderBase$Statistics]: this new event has 114 ancestors and is cut-off event [2023-11-26 11:44:48,664 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-26 11:44:48,664 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-26 11:44:48,664 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-26 11:44:48,664 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-26 11:44:48,713 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([509] L880-4-->L880-1: Formula: (= |v_#race~num~0_1| 0) InVars {} OutVars{#race~num~0=|v_#race~num~0_1|} AuxVars[] AssignedVars[#race~num~0][104], [75#L914-4true, Black: 237#(= |#race~num~0| |thread1Thread1of1ForFork0_#t~nondet8|), 225#(= thread2Thread1of1ForFork1_~j~0 0), 247#true, 241#true, Black: 243#(= ~num~0 0), 164#L880-1true, 175#L897-2true, Black: 217#true]) [2023-11-26 11:44:48,713 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is cut-off event [2023-11-26 11:44:48,714 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-26 11:44:48,714 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-26 11:44:48,714 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-26 11:44:49,085 INFO L124 PetriNetUnfolderBase]: 631/3499 cut-off events. [2023-11-26 11:44:49,086 INFO L125 PetriNetUnfolderBase]: For 424/476 co-relation queries the response was YES. [2023-11-26 11:44:49,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5656 conditions, 3499 events. 631/3499 cut-off events. For 424/476 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 28988 event pairs, 205 based on Foata normal form. 23/3160 useless extension candidates. Maximal degree in co-relation 5458. Up to 582 conditions per place. [2023-11-26 11:44:49,126 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 22 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2023-11-26 11:44:49,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 602 flow [2023-11-26 11:44:49,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 586 transitions. [2023-11-26 11:44:49,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9301587301587302 [2023-11-26 11:44:49,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 586 transitions. [2023-11-26 11:44:49,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 586 transitions. [2023-11-26 11:44:49,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:49,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 586 transitions. [2023-11-26 11:44:49,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,135 INFO L175 Difference]: Start difference. First operand has 192 places, 203 transitions, 537 flow. Second operand 3 states and 586 transitions. [2023-11-26 11:44:49,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 211 transitions, 602 flow [2023-11-26 11:44:49,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 211 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:49,148 INFO L231 Difference]: Finished difference. Result has 193 places, 204 transitions, 543 flow [2023-11-26 11:44:49,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=543, PETRI_PLACES=193, PETRI_TRANSITIONS=204} [2023-11-26 11:44:49,152 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 5 predicate places. [2023-11-26 11:44:49,152 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 204 transitions, 543 flow [2023-11-26 11:44:49,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:49,153 INFO L208 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] [2023-11-26 11:44:49,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:44:49,154 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:49,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1788017167, now seen corresponding path program 1 times [2023-11-26 11:44:49,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:49,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872559373] [2023-11-26 11:44:49,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:49,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:49,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:49,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:49,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872559373] [2023-11-26 11:44:49,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872559373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:49,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:49,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:49,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111584621] [2023-11-26 11:44:49,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:49,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:49,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:49,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:49,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:49,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 210 [2023-11-26 11:44:49,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 204 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:49,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 210 [2023-11-26 11:44:49,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:49,445 INFO L124 PetriNetUnfolderBase]: 51/760 cut-off events. [2023-11-26 11:44:49,445 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2023-11-26 11:44:49,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1109 conditions, 760 events. 51/760 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3638 event pairs, 9 based on Foata normal form. 30/743 useless extension candidates. Maximal degree in co-relation 926. Up to 92 conditions per place. [2023-11-26 11:44:49,451 INFO L140 encePairwiseOnDemand]: 202/210 looper letters, 8 selfloop transitions, 8 changer transitions 0/185 dead transitions. [2023-11-26 11:44:49,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 185 transitions, 479 flow [2023-11-26 11:44:49,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2023-11-26 11:44:49,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317460317460318 [2023-11-26 11:44:49,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 587 transitions. [2023-11-26 11:44:49,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 587 transitions. [2023-11-26 11:44:49,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:49,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 587 transitions. [2023-11-26 11:44:49,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,460 INFO L175 Difference]: Start difference. First operand has 193 places, 204 transitions, 543 flow. Second operand 3 states and 587 transitions. [2023-11-26 11:44:49,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 185 transitions, 479 flow [2023-11-26 11:44:49,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 185 transitions, 451 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-11-26 11:44:49,467 INFO L231 Difference]: Finished difference. Result has 187 places, 183 transitions, 429 flow [2023-11-26 11:44:49,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=187, PETRI_TRANSITIONS=183} [2023-11-26 11:44:49,469 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-26 11:44:49,469 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 183 transitions, 429 flow [2023-11-26 11:44:49,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.0) internal successors, (573), 3 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:49,472 INFO L208 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] [2023-11-26 11:44:49,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:44:49,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:49,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:49,473 INFO L85 PathProgramCache]: Analyzing trace with hash 332051593, now seen corresponding path program 1 times [2023-11-26 11:44:49,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:49,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450969809] [2023-11-26 11:44:49,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:49,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:49,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:49,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450969809] [2023-11-26 11:44:49,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450969809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:49,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:49,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:49,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470513952] [2023-11-26 11:44:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:49,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:49,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:49,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:49,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:49,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 210 [2023-11-26 11:44:49,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 183 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:49,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 210 [2023-11-26 11:44:49,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:49,723 INFO L124 PetriNetUnfolderBase]: 80/826 cut-off events. [2023-11-26 11:44:49,723 INFO L125 PetriNetUnfolderBase]: For 83/86 co-relation queries the response was YES. [2023-11-26 11:44:49,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 826 events. 80/826 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4417 event pairs, 27 based on Foata normal form. 1/786 useless extension candidates. Maximal degree in co-relation 1063. Up to 127 conditions per place. [2023-11-26 11:44:49,729 INFO L140 encePairwiseOnDemand]: 202/210 looper letters, 20 selfloop transitions, 4 changer transitions 3/185 dead transitions. [2023-11-26 11:44:49,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 185 transitions, 492 flow [2023-11-26 11:44:49,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:49,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-11-26 11:44:49,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2023-11-26 11:44:49,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-11-26 11:44:49,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-11-26 11:44:49,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:49,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-11-26 11:44:49,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,738 INFO L175 Difference]: Start difference. First operand has 187 places, 183 transitions, 429 flow. Second operand 3 states and 565 transitions. [2023-11-26 11:44:49,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 185 transitions, 492 flow [2023-11-26 11:44:49,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 185 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:49,744 INFO L231 Difference]: Finished difference. Result has 185 places, 177 transitions, 417 flow [2023-11-26 11:44:49,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=417, PETRI_PLACES=185, PETRI_TRANSITIONS=177} [2023-11-26 11:44:49,746 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -3 predicate places. [2023-11-26 11:44:49,746 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 177 transitions, 417 flow [2023-11-26 11:44:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:49,747 INFO L208 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] [2023-11-26 11:44:49,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:44:49,747 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:49,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:49,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1644690895, now seen corresponding path program 1 times [2023-11-26 11:44:49,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:49,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032906816] [2023-11-26 11:44:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:49,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032906816] [2023-11-26 11:44:49,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032906816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:49,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:49,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752097075] [2023-11-26 11:44:49,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:49,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:49,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:49,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:49,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:49,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-26 11:44:49,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 177 transitions, 417 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:49,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:49,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-26 11:44:49,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:50,006 INFO L124 PetriNetUnfolderBase]: 80/820 cut-off events. [2023-11-26 11:44:50,006 INFO L125 PetriNetUnfolderBase]: For 68/71 co-relation queries the response was YES. [2023-11-26 11:44:50,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 820 events. 80/820 cut-off events. For 68/71 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4430 event pairs, 37 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 1044. Up to 161 conditions per place. [2023-11-26 11:44:50,012 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 19 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2023-11-26 11:44:50,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 177 transitions, 460 flow [2023-11-26 11:44:50,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:50,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:50,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2023-11-26 11:44:50,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8968253968253969 [2023-11-26 11:44:50,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 565 transitions. [2023-11-26 11:44:50,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 565 transitions. [2023-11-26 11:44:50,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:50,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 565 transitions. [2023-11-26 11:44:50,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:50,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:50,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:50,021 INFO L175 Difference]: Start difference. First operand has 185 places, 177 transitions, 417 flow. Second operand 3 states and 565 transitions. [2023-11-26 11:44:50,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 177 transitions, 460 flow [2023-11-26 11:44:50,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 177 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:50,026 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 411 flow [2023-11-26 11:44:50,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2023-11-26 11:44:50,027 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -7 predicate places. [2023-11-26 11:44:50,027 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 411 flow [2023-11-26 11:44:50,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:50,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:50,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:50,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:44:50,029 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:50,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:50,029 INFO L85 PathProgramCache]: Analyzing trace with hash -490550921, now seen corresponding path program 1 times [2023-11-26 11:44:50,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:50,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467365606] [2023-11-26 11:44:50,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:50,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:50,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:50,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467365606] [2023-11-26 11:44:50,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467365606] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375442985] [2023-11-26 11:44:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:50,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:50,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:50,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:50,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:44:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:50,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:44:50,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:50,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:44:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:50,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375442985] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:44:50,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:44:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-11-26 11:44:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514657913] [2023-11-26 11:44:50,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:44:50,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:44:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:44:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:44:50,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 210 [2023-11-26 11:44:50,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 186.88888888888889) internal successors, (1682), 9 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:50,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:50,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 210 [2023-11-26 11:44:50,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:50,973 INFO L124 PetriNetUnfolderBase]: 237/1555 cut-off events. [2023-11-26 11:44:50,974 INFO L125 PetriNetUnfolderBase]: For 104/108 co-relation queries the response was YES. [2023-11-26 11:44:50,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2453 conditions, 1555 events. 237/1555 cut-off events. For 104/108 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9200 event pairs, 48 based on Foata normal form. 26/1506 useless extension candidates. Maximal degree in co-relation 2096. Up to 144 conditions per place. [2023-11-26 11:44:50,987 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 60 selfloop transitions, 9 changer transitions 0/225 dead transitions. [2023-11-26 11:44:50,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 225 transitions, 690 flow [2023-11-26 11:44:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 11:44:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 11:44:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1727 transitions. [2023-11-26 11:44:50,994 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9137566137566138 [2023-11-26 11:44:50,994 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1727 transitions. [2023-11-26 11:44:50,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1727 transitions. [2023-11-26 11:44:50,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:50,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1727 transitions. [2023-11-26 11:44:51,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.88888888888889) internal successors, (1727), 9 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 210.0) internal successors, (2100), 10 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,010 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 210.0) internal successors, (2100), 10 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,011 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 411 flow. Second operand 9 states and 1727 transitions. [2023-11-26 11:44:51,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 225 transitions, 690 flow [2023-11-26 11:44:51,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 225 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:51,018 INFO L231 Difference]: Finished difference. Result has 190 places, 182 transitions, 457 flow [2023-11-26 11:44:51,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=457, PETRI_PLACES=190, PETRI_TRANSITIONS=182} [2023-11-26 11:44:51,019 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-26 11:44:51,020 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 182 transitions, 457 flow [2023-11-26 11:44:51,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.88888888888889) internal successors, (1682), 9 states have internal predecessors, (1682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:51,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:51,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 11:44:51,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:51,228 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:51,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1372185173, now seen corresponding path program 1 times [2023-11-26 11:44:51,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:51,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707379752] [2023-11-26 11:44:51,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:51,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:51,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:51,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707379752] [2023-11-26 11:44:51,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707379752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:51,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:51,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:51,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601243149] [2023-11-26 11:44:51,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:51,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:51,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:51,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:51,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 210 [2023-11-26 11:44:51,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 182 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:51,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 210 [2023-11-26 11:44:51,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:51,569 INFO L124 PetriNetUnfolderBase]: 104/1120 cut-off events. [2023-11-26 11:44:51,569 INFO L125 PetriNetUnfolderBase]: For 136/141 co-relation queries the response was YES. [2023-11-26 11:44:51,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1782 conditions, 1120 events. 104/1120 cut-off events. For 136/141 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6366 event pairs, 47 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1501. Up to 299 conditions per place. [2023-11-26 11:44:51,579 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 23 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2023-11-26 11:44:51,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 182 transitions, 508 flow [2023-11-26 11:44:51,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:51,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:51,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-26 11:44:51,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8952380952380953 [2023-11-26 11:44:51,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-26 11:44:51,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-26 11:44:51,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:51,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-26 11:44:51,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,589 INFO L175 Difference]: Start difference. First operand has 190 places, 182 transitions, 457 flow. Second operand 3 states and 564 transitions. [2023-11-26 11:44:51,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 182 transitions, 508 flow [2023-11-26 11:44:51,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 182 transitions, 502 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:51,595 INFO L231 Difference]: Finished difference. Result has 190 places, 181 transitions, 453 flow [2023-11-26 11:44:51,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=190, PETRI_TRANSITIONS=181} [2023-11-26 11:44:51,597 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 2 predicate places. [2023-11-26 11:44:51,597 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 181 transitions, 453 flow [2023-11-26 11:44:51,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.66666666666666) internal successors, (554), 3 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:51,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:51,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:51,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:44:51,599 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:51,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:51,599 INFO L85 PathProgramCache]: Analyzing trace with hash -558797484, now seen corresponding path program 1 times [2023-11-26 11:44:51,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:51,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173106916] [2023-11-26 11:44:51,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:51,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:51,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173106916] [2023-11-26 11:44:51,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173106916] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223426373] [2023-11-26 11:44:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:51,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:51,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:51,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:51,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:44:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:51,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:44:51,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:52,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:52,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223426373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:52,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:52,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 11:44:52,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15292687] [2023-11-26 11:44:52,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:52,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:52,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:52,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:52,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:52,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-26 11:44:52,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 181 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:52,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-26 11:44:52,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:52,373 INFO L124 PetriNetUnfolderBase]: 148/1330 cut-off events. [2023-11-26 11:44:52,374 INFO L125 PetriNetUnfolderBase]: For 93/98 co-relation queries the response was YES. [2023-11-26 11:44:52,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 1330 events. 148/1330 cut-off events. For 93/98 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8033 event pairs, 65 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 1777. Up to 257 conditions per place. [2023-11-26 11:44:52,386 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 23 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-11-26 11:44:52,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 185 transitions, 516 flow [2023-11-26 11:44:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:52,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 569 transitions. [2023-11-26 11:44:52,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031746031746032 [2023-11-26 11:44:52,390 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 569 transitions. [2023-11-26 11:44:52,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 569 transitions. [2023-11-26 11:44:52,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:52,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 569 transitions. [2023-11-26 11:44:52,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.66666666666666) internal successors, (569), 3 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,397 INFO L175 Difference]: Start difference. First operand has 190 places, 181 transitions, 453 flow. Second operand 3 states and 569 transitions. [2023-11-26 11:44:52,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 185 transitions, 516 flow [2023-11-26 11:44:52,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 185 transitions, 512 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:52,404 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 451 flow [2023-11-26 11:44:52,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2023-11-26 11:44:52,406 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 1 predicate places. [2023-11-26 11:44:52,406 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 451 flow [2023-11-26 11:44:52,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,407 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:52,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:52,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-26 11:44:52,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:52,613 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:52,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:52,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1698710071, now seen corresponding path program 1 times [2023-11-26 11:44:52,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:52,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661340873] [2023-11-26 11:44:52,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:52,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:52,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:52,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:52,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661340873] [2023-11-26 11:44:52,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661340873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:52,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17206421] [2023-11-26 11:44:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:52,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:52,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:52,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:52,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:44:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:52,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:44:52,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:44:52,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:52,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17206421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:52,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:52,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 11:44:52,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712912506] [2023-11-26 11:44:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:52,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:52,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:52,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:52,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 210 [2023-11-26 11:44:52,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:52,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:52,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 210 [2023-11-26 11:44:52,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:53,199 INFO L124 PetriNetUnfolderBase]: 129/1215 cut-off events. [2023-11-26 11:44:53,199 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2023-11-26 11:44:53,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1215 events. 129/1215 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6906 event pairs, 50 based on Foata normal form. 0/1181 useless extension candidates. Maximal degree in co-relation 1584. Up to 204 conditions per place. [2023-11-26 11:44:53,210 INFO L140 encePairwiseOnDemand]: 207/210 looper letters, 20 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2023-11-26 11:44:53,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 184 transitions, 508 flow [2023-11-26 11:44:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:53,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-11-26 11:44:53,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9174603174603174 [2023-11-26 11:44:53,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-11-26 11:44:53,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-11-26 11:44:53,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:53,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-11-26 11:44:53,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:53,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:53,220 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:53,220 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 451 flow. Second operand 3 states and 578 transitions. [2023-11-26 11:44:53,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 184 transitions, 508 flow [2023-11-26 11:44:53,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 184 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:53,226 INFO L231 Difference]: Finished difference. Result has 188 places, 179 transitions, 449 flow [2023-11-26 11:44:53,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=449, PETRI_PLACES=188, PETRI_TRANSITIONS=179} [2023-11-26 11:44:53,227 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 0 predicate places. [2023-11-26 11:44:53,228 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 179 transitions, 449 flow [2023-11-26 11:44:53,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:53,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:53,229 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:53,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:53,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 11:44:53,435 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:53,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash -588807279, now seen corresponding path program 2 times [2023-11-26 11:44:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:53,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940128117] [2023-11-26 11:44:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:53,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-26 11:44:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940128117] [2023-11-26 11:44:53,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940128117] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196604051] [2023-11-26 11:44:53,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:44:53,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:53,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:53,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:53,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:44:53,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:44:53,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:44:53,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 11:44:53,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:54,039 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 11 treesize of output 7 [2023-11-26 11:44:54,070 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 19 treesize of output 18 [2023-11-26 11:44:54,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:44:54,113 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 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-26 11:44:54,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:44:54,166 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 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-26 11:44:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-26 11:44:54,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196604051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:54,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:54,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-26 11:44:54,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137725997] [2023-11-26 11:44:54,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:54,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:44:54,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:44:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:44:54,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 210 [2023-11-26 11:44:54,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 179 transitions, 449 flow. Second operand has 7 states, 7 states have (on average 182.71428571428572) internal successors, (1279), 7 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:54,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 210 [2023-11-26 11:44:54,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:54,568 INFO L124 PetriNetUnfolderBase]: 131/1182 cut-off events. [2023-11-26 11:44:54,568 INFO L125 PetriNetUnfolderBase]: For 76/86 co-relation queries the response was YES. [2023-11-26 11:44:54,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1802 conditions, 1182 events. 131/1182 cut-off events. For 76/86 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6390 event pairs, 28 based on Foata normal form. 4/1167 useless extension candidates. Maximal degree in co-relation 1744. Up to 152 conditions per place. [2023-11-26 11:44:54,577 INFO L140 encePairwiseOnDemand]: 204/210 looper letters, 26 selfloop transitions, 5 changer transitions 4/194 dead transitions. [2023-11-26 11:44:54,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 194 transitions, 565 flow [2023-11-26 11:44:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:44:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 11:44:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1303 transitions. [2023-11-26 11:44:54,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8863945578231293 [2023-11-26 11:44:54,582 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1303 transitions. [2023-11-26 11:44:54,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1303 transitions. [2023-11-26 11:44:54,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:54,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1303 transitions. [2023-11-26 11:44:54,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 186.14285714285714) internal successors, (1303), 7 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,608 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 210.0) internal successors, (1680), 8 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,608 INFO L175 Difference]: Start difference. First operand has 188 places, 179 transitions, 449 flow. Second operand 7 states and 1303 transitions. [2023-11-26 11:44:54,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 194 transitions, 565 flow [2023-11-26 11:44:54,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 194 transitions, 561 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:54,618 INFO L231 Difference]: Finished difference. Result has 191 places, 178 transitions, 453 flow [2023-11-26 11:44:54,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=453, PETRI_PLACES=191, PETRI_TRANSITIONS=178} [2023-11-26 11:44:54,620 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, 3 predicate places. [2023-11-26 11:44:54,620 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 178 transitions, 453 flow [2023-11-26 11:44:54,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 182.71428571428572) internal successors, (1279), 7 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:54,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:54,622 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:54,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:54,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:44:54,829 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err5ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2023-11-26 11:44:54,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:54,830 INFO L85 PathProgramCache]: Analyzing trace with hash 612862088, now seen corresponding path program 1 times [2023-11-26 11:44:54,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:54,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424500945] [2023-11-26 11:44:54,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:54,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-26 11:44:55,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:55,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424500945] [2023-11-26 11:44:55,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424500945] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:44:55,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664092090] [2023-11-26 11:44:55,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:55,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:55,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:55,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:55,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:44:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:55,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:44:55,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:55,282 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-26 11:44:55,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:55,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664092090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:55,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:44:55,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 11:44:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180258479] [2023-11-26 11:44:55,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:55,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:55,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:55,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:55,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:55,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 210 [2023-11-26 11:44:55,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 178 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:55,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:55,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 210 [2023-11-26 11:44:55,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:55,514 INFO L124 PetriNetUnfolderBase]: 96/1138 cut-off events. [2023-11-26 11:44:55,514 INFO L125 PetriNetUnfolderBase]: For 51/56 co-relation queries the response was YES. [2023-11-26 11:44:55,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1662 conditions, 1138 events. 96/1138 cut-off events. For 51/56 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6263 event pairs, 39 based on Foata normal form. 1/1116 useless extension candidates. Maximal degree in co-relation 1573. Up to 178 conditions per place. [2023-11-26 11:44:55,520 INFO L140 encePairwiseOnDemand]: 208/210 looper letters, 0 selfloop transitions, 0 changer transitions 177/177 dead transitions. [2023-11-26 11:44:55,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 177 transitions, 479 flow [2023-11-26 11:44:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2023-11-26 11:44:55,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2023-11-26 11:44:55,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2023-11-26 11:44:55,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2023-11-26 11:44:55,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:55,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2023-11-26 11:44:55,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:55,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:55,529 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 210.0) internal successors, (840), 4 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:55,529 INFO L175 Difference]: Start difference. First operand has 191 places, 178 transitions, 453 flow. Second operand 3 states and 576 transitions. [2023-11-26 11:44:55,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 177 transitions, 479 flow [2023-11-26 11:44:55,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 177 transitions, 470 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:44:55,534 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2023-11-26 11:44:55,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=210, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2023-11-26 11:44:55,535 INFO L281 CegarLoopForPetriNet]: 188 programPoint places, -1 predicate places. [2023-11-26 11:44:55,535 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2023-11-26 11:44:55,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:55,538 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 30 remaining) [2023-11-26 11:44:55,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2023-11-26 11:44:55,539 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2023-11-26 11:44:55,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2023-11-26 11:44:55,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2023-11-26 11:44:55,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2023-11-26 11:44:55,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2023-11-26 11:44:55,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2023-11-26 11:44:55,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2023-11-26 11:44:55,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2023-11-26 11:44:55,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2023-11-26 11:44:55,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2023-11-26 11:44:55,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2023-11-26 11:44:55,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2023-11-26 11:44:55,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2023-11-26 11:44:55,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2023-11-26 11:44:55,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2023-11-26 11:44:55,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 30 remaining) [2023-11-26 11:44:55,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 30 remaining) [2023-11-26 11:44:55,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2023-11-26 11:44:55,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2023-11-26 11:44:55,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2023-11-26 11:44:55,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2023-11-26 11:44:55,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2023-11-26 11:44:55,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2023-11-26 11:44:55,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2023-11-26 11:44:55,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2023-11-26 11:44:55,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2023-11-26 11:44:55,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2023-11-26 11:44:55,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2023-11-26 11:44:55,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:55,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:44:55,751 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:55,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:44:55,758 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:44:55,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:44:55 BasicIcfg [2023-11-26 11:44:55,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:44:55,763 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:44:55,763 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:44:55,764 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:44:55,764 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:44:42" (3/4) ... [2023-11-26 11:44:55,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:44:55,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:44:55,769 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:44:55,775 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-26 11:44:55,775 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:44:55,775 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:44:55,776 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:44:55,882 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:44:55,882 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:44:55,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:44:55,883 INFO L158 Benchmark]: Toolchain (without parser) took 15466.52ms. Allocated memory was 190.8MB in the beginning and 434.1MB in the end (delta: 243.3MB). Free memory was 143.8MB in the beginning and 332.2MB in the end (delta: -188.4MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,884 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:44:55,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.36ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 116.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.35ms. Allocated memory is still 190.8MB. Free memory was 116.0MB in the beginning and 113.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,885 INFO L158 Benchmark]: Boogie Preprocessor took 117.40ms. Allocated memory is still 190.8MB. Free memory was 113.4MB in the beginning and 159.3MB in the end (delta: -45.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,885 INFO L158 Benchmark]: RCFGBuilder took 748.51ms. Allocated memory is still 190.8MB. Free memory was 159.3MB in the beginning and 135.6MB in the end (delta: 23.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,886 INFO L158 Benchmark]: TraceAbstraction took 13660.73ms. Allocated memory was 190.8MB in the beginning and 434.1MB in the end (delta: 243.3MB). Free memory was 135.6MB in the beginning and 336.8MB in the end (delta: -201.3MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,886 INFO L158 Benchmark]: Witness Printer took 119.32ms. Allocated memory is still 434.1MB. Free memory was 336.8MB in the beginning and 332.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:44:55,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.36ms. Allocated memory is still 190.8MB. Free memory was 143.3MB in the beginning and 116.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.35ms. Allocated memory is still 190.8MB. Free memory was 116.0MB in the beginning and 113.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.40ms. Allocated memory is still 190.8MB. Free memory was 113.4MB in the beginning and 159.3MB in the end (delta: -45.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 748.51ms. Allocated memory is still 190.8MB. Free memory was 159.3MB in the beginning and 135.6MB in the end (delta: 23.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13660.73ms. Allocated memory was 190.8MB in the beginning and 434.1MB in the end (delta: 243.3MB). Free memory was 135.6MB in the beginning and 336.8MB in the end (delta: -201.3MB). Peak memory consumption was 275.3MB. Max. memory is 16.1GB. * Witness Printer took 119.32ms. Allocated memory is still 434.1MB. Free memory was 336.8MB in the beginning and 332.2MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 880]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 882]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 894]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 902]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 896]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 903]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 897]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 908]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 909]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 915]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 916]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 917]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 918]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 292 locations, 30 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.5s, OverallIterations: 17, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 694 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 131 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1141 IncrementalHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 111 mSDtfsCounter, 1141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 863 GetRequests, 816 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=543occurred in iteration=8, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2333 NumberOfCodeBlocks, 2267 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2417 ConstructedInterpolants, 0 QuantifiedInterpolants, 3372 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1662 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 244/261 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:44:55,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dc35854-c523-49e6-bce3-60bbbebfcfae/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE