./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ --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 2e9e4bd6e9b16aa5f22ad2335ca34ba741869a12ab5a04a80108cf42ed170c0f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:38:44,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:38:44,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:38:44,661 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:38:44,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:38:44,690 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:38:44,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:38:44,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:38:44,692 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:38:44,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:38:44,693 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:38:44,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:38:44,694 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:38:44,695 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:38:44,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:38:44,696 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:38:44,697 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:38:44,697 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:38:44,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:38:44,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:38:44,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:38:44,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:38:44,700 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:38:44,700 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:38:44,701 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:38:44,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:38:44,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:38:44,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:38:44,703 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:38:44,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:38:44,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:38:44,704 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:38:44,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:38:44,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:38:44,705 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:38:44,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:38:44,706 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:38:44,706 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:38:44,706 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:38:44,706 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:38:44,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:38:44,708 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_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e9e4bd6e9b16aa5f22ad2335ca34ba741869a12ab5a04a80108cf42ed170c0f [2023-11-23 22:38:44,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:38:45,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:38:45,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:38:45,015 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:38:45,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:38:45,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2023-11-23 22:38:48,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:38:48,533 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:38:48,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/sv-benchmarks/c/weaver/popl20-bad-buffer-mult-alt.wvr.c [2023-11-23 22:38:48,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/data/6eb3b2fe0/fb7865354d644fbe8c0f2dcdba68e354/FLAGa9ee8d49a [2023-11-23 22:38:48,566 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/data/6eb3b2fe0/fb7865354d644fbe8c0f2dcdba68e354 [2023-11-23 22:38:48,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:38:48,571 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:38:48,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:38:48,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:38:48,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:38:48,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:48,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2882af14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48, skipping insertion in model container [2023-11-23 22:38:48,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:48,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:38:48,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:38:48,862 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:38:48,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:38:48,938 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:38:48,938 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:38:48,947 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:38:48,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48 WrapperNode [2023-11-23 22:38:48,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:38:48,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:38:48,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:38:48,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:38:48,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:48,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,038 INFO L138 Inliner]: procedures = 26, calls = 80, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 663 [2023-11-23 22:38:49,039 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:38:49,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:38:49,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:38:49,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:38:49,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:38:49,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:38:49,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:38:49,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:38:49,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (1/1) ... [2023-11-23 22:38:49,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:38:49,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:38:49,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:38:49,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aedeee24-6e2f-4c04-90ab-f6e751ec831a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:38:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:38:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:38:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:38:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:38:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:38:49,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:38:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:38:49,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:38:49,239 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:38:49,239 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:38:49,240 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 22:38:49,240 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 22:38:49,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:38:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:38:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:38:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:38:49,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:38:49,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:38:49,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:38:49,246 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:38:49,452 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:38:49,456 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:38:50,570 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:38:51,297 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:38:51,299 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 22:38:51,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:51 BoogieIcfgContainer [2023-11-23 22:38:51,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:38:51,305 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:38:51,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:38:51,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:38:51,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:38:48" (1/3) ... [2023-11-23 22:38:51,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29767112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:51, skipping insertion in model container [2023-11-23 22:38:51,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:48" (2/3) ... [2023-11-23 22:38:51,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29767112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:51, skipping insertion in model container [2023-11-23 22:38:51,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:51" (3/3) ... [2023-11-23 22:38:51,315 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2023-11-23 22:38:51,324 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:38:51,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:38:51,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2023-11-23 22:38:51,334 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:38:51,521 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-23 22:38:51,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 473 places, 483 transitions, 994 flow [2023-11-23 22:38:51,817 INFO L124 PetriNetUnfolderBase]: 23/479 cut-off events. [2023-11-23 22:38:51,817 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:38:51,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 479 events. 23/479 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 651 event pairs, 0 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 390. Up to 2 conditions per place. [2023-11-23 22:38:51,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 473 places, 483 transitions, 994 flow [2023-11-23 22:38:51,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 445 places, 454 transitions, 932 flow [2023-11-23 22:38:51,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:38:51,858 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;@2ac50f3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:38:51,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 173 error locations. [2023-11-23 22:38:51,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:38:51,871 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-11-23 22:38:51,872 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:38:51,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:51,873 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] [2023-11-23 22:38:51,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:51,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1025119640, now seen corresponding path program 1 times [2023-11-23 22:38:51,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:51,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728374931] [2023-11-23 22:38:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:51,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:52,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:52,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728374931] [2023-11-23 22:38:52,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728374931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:52,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:52,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822340255] [2023-11-23 22:38:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:52,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:52,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:52,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:52,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 483 [2023-11-23 22:38:52,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 454 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:52,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:52,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 483 [2023-11-23 22:38:52,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:53,160 INFO L124 PetriNetUnfolderBase]: 748/1796 cut-off events. [2023-11-23 22:38:53,160 INFO L125 PetriNetUnfolderBase]: For 237/365 co-relation queries the response was YES. [2023-11-23 22:38:53,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 1796 events. 748/1796 cut-off events. For 237/365 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9097 event pairs, 485 based on Foata normal form. 265/1871 useless extension candidates. Maximal degree in co-relation 2527. Up to 1009 conditions per place. [2023-11-23 22:38:53,190 INFO L140 encePairwiseOnDemand]: 398/483 looper letters, 27 selfloop transitions, 2 changer transitions 6/371 dead transitions. [2023-11-23 22:38:53,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 371 transitions, 824 flow [2023-11-23 22:38:53,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1216 transitions. [2023-11-23 22:38:53,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8391994478951 [2023-11-23 22:38:53,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1216 transitions. [2023-11-23 22:38:53,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1216 transitions. [2023-11-23 22:38:53,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:53,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1216 transitions. [2023-11-23 22:38:53,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 405.3333333333333) internal successors, (1216), 3 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:53,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:53,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:53,251 INFO L175 Difference]: Start difference. First operand has 445 places, 454 transitions, 932 flow. Second operand 3 states and 1216 transitions. [2023-11-23 22:38:53,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 371 transitions, 824 flow [2023-11-23 22:38:53,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 371 transitions, 808 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-23 22:38:53,272 INFO L231 Difference]: Finished difference. Result has 368 places, 365 transitions, 742 flow [2023-11-23 22:38:53,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=368, PETRI_TRANSITIONS=365} [2023-11-23 22:38:53,280 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -77 predicate places. [2023-11-23 22:38:53,281 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 365 transitions, 742 flow [2023-11-23 22:38:53,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:53,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:53,283 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] [2023-11-23 22:38:53,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:38:53,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:53,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:53,346 INFO L85 PathProgramCache]: Analyzing trace with hash -962694943, now seen corresponding path program 1 times [2023-11-23 22:38:53,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:53,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650770373] [2023-11-23 22:38:53,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:53,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:53,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:53,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650770373] [2023-11-23 22:38:53,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650770373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:53,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:53,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:53,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447751378] [2023-11-23 22:38:53,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:53,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:53,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:53,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:53,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 483 [2023-11-23 22:38:53,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 365 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:53,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:53,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 483 [2023-11-23 22:38:53,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:54,235 INFO L124 PetriNetUnfolderBase]: 748/1789 cut-off events. [2023-11-23 22:38:54,236 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:54,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 1789 events. 748/1789 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9126 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2833. Up to 1009 conditions per place. [2023-11-23 22:38:54,258 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 27 selfloop transitions, 2 changer transitions 0/364 dead transitions. [2023-11-23 22:38:54,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 364 transitions, 798 flow [2023-11-23 22:38:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:54,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1134 transitions. [2023-11-23 22:38:54,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.782608695652174 [2023-11-23 22:38:54,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1134 transitions. [2023-11-23 22:38:54,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1134 transitions. [2023-11-23 22:38:54,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:54,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1134 transitions. [2023-11-23 22:38:54,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.0) internal successors, (1134), 3 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:54,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:54,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:54,280 INFO L175 Difference]: Start difference. First operand has 368 places, 365 transitions, 742 flow. Second operand 3 states and 1134 transitions. [2023-11-23 22:38:54,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 364 transitions, 798 flow [2023-11-23 22:38:54,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 364 transitions, 794 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:54,293 INFO L231 Difference]: Finished difference. Result has 361 places, 364 transitions, 740 flow [2023-11-23 22:38:54,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=361, PETRI_TRANSITIONS=364} [2023-11-23 22:38:54,295 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -84 predicate places. [2023-11-23 22:38:54,296 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 364 transitions, 740 flow [2023-11-23 22:38:54,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.3333333333333) internal successors, (1108), 3 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:54,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:54,298 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] [2023-11-23 22:38:54,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:38:54,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:54,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:54,299 INFO L85 PathProgramCache]: Analyzing trace with hash -541422816, now seen corresponding path program 1 times [2023-11-23 22:38:54,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:54,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343512284] [2023-11-23 22:38:54,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:54,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343512284] [2023-11-23 22:38:54,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343512284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:54,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:54,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136711571] [2023-11-23 22:38:54,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:54,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:54,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:54,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:54,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:54,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 364 transitions, 740 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:54,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:54,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:54,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:55,099 INFO L124 PetriNetUnfolderBase]: 748/1788 cut-off events. [2023-11-23 22:38:55,100 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:55,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2871 conditions, 1788 events. 748/1788 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9119 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2823. Up to 1008 conditions per place. [2023-11-23 22:38:55,120 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/363 dead transitions. [2023-11-23 22:38:55,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 363 transitions, 794 flow [2023-11-23 22:38:55,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:55,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:55,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:55,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:55,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:55,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:55,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:55,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:55,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:55,138 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:55,139 INFO L175 Difference]: Start difference. First operand has 361 places, 364 transitions, 740 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:55,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 363 transitions, 794 flow [2023-11-23 22:38:55,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 363 transitions, 790 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:55,148 INFO L231 Difference]: Finished difference. Result has 360 places, 363 transitions, 738 flow [2023-11-23 22:38:55,149 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=360, PETRI_TRANSITIONS=363} [2023-11-23 22:38:55,150 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -85 predicate places. [2023-11-23 22:38:55,151 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 363 transitions, 738 flow [2023-11-23 22:38:55,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:55,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:55,152 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] [2023-11-23 22:38:55,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:38:55,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:55,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash -525539009, now seen corresponding path program 1 times [2023-11-23 22:38:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:55,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219645532] [2023-11-23 22:38:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:55,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:55,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:55,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219645532] [2023-11-23 22:38:55,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219645532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:55,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:55,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:55,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904311742] [2023-11-23 22:38:55,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:55,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:55,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:55,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:55,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:55,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:55,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 363 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:55,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:55,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:55,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:56,005 INFO L124 PetriNetUnfolderBase]: 748/1787 cut-off events. [2023-11-23 22:38:56,005 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:56,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 1787 events. 748/1787 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9109 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2814. Up to 1008 conditions per place. [2023-11-23 22:38:56,025 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/362 dead transitions. [2023-11-23 22:38:56,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 362 transitions, 792 flow [2023-11-23 22:38:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:56,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:56,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:56,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:56,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,046 INFO L175 Difference]: Start difference. First operand has 360 places, 363 transitions, 738 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:56,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 362 transitions, 792 flow [2023-11-23 22:38:56,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 362 transitions, 788 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:56,056 INFO L231 Difference]: Finished difference. Result has 359 places, 362 transitions, 736 flow [2023-11-23 22:38:56,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=359, PETRI_TRANSITIONS=362} [2023-11-23 22:38:56,059 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -86 predicate places. [2023-11-23 22:38:56,059 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 362 transitions, 736 flow [2023-11-23 22:38:56,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:56,060 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] [2023-11-23 22:38:56,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:38:56,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:56,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:56,061 INFO L85 PathProgramCache]: Analyzing trace with hash 372361636, now seen corresponding path program 1 times [2023-11-23 22:38:56,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:56,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201201346] [2023-11-23 22:38:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:56,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:56,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:56,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201201346] [2023-11-23 22:38:56,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201201346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:56,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:56,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:56,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807033241] [2023-11-23 22:38:56,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:56,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:56,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:56,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:56,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:56,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:56,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 362 transitions, 736 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:56,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:56,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:56,805 INFO L124 PetriNetUnfolderBase]: 748/1786 cut-off events. [2023-11-23 22:38:56,805 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:56,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2869 conditions, 1786 events. 748/1786 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9113 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2805. Up to 1008 conditions per place. [2023-11-23 22:38:56,826 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2023-11-23 22:38:56,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 361 transitions, 790 flow [2023-11-23 22:38:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:56,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:56,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:56,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:56,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:56,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,843 INFO L175 Difference]: Start difference. First operand has 359 places, 362 transitions, 736 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:56,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 361 transitions, 790 flow [2023-11-23 22:38:56,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 361 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:56,853 INFO L231 Difference]: Finished difference. Result has 358 places, 361 transitions, 734 flow [2023-11-23 22:38:56,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=358, PETRI_TRANSITIONS=361} [2023-11-23 22:38:56,855 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -87 predicate places. [2023-11-23 22:38:56,855 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 361 transitions, 734 flow [2023-11-23 22:38:56,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:56,857 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] [2023-11-23 22:38:56,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:38:56,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:56,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:56,858 INFO L85 PathProgramCache]: Analyzing trace with hash 438758107, now seen corresponding path program 1 times [2023-11-23 22:38:56,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:56,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097595360] [2023-11-23 22:38:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:56,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:56,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:56,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097595360] [2023-11-23 22:38:56,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097595360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:56,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:56,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:56,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920307400] [2023-11-23 22:38:56,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:56,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:56,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:56,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:56,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:56,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:56,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 361 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:56,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:56,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:56,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:57,405 INFO L124 PetriNetUnfolderBase]: 748/1785 cut-off events. [2023-11-23 22:38:57,406 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:57,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1785 events. 748/1785 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9143 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2796. Up to 1008 conditions per place. [2023-11-23 22:38:57,423 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/360 dead transitions. [2023-11-23 22:38:57,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 360 transitions, 788 flow [2023-11-23 22:38:57,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:57,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:57,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:57,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:57,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:57,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:57,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:57,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:57,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:57,439 INFO L175 Difference]: Start difference. First operand has 358 places, 361 transitions, 734 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:57,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 360 transitions, 788 flow [2023-11-23 22:38:57,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 360 transitions, 784 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:57,448 INFO L231 Difference]: Finished difference. Result has 357 places, 360 transitions, 732 flow [2023-11-23 22:38:57,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=357, PETRI_TRANSITIONS=360} [2023-11-23 22:38:57,450 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -88 predicate places. [2023-11-23 22:38:57,450 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 360 transitions, 732 flow [2023-11-23 22:38:57,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:57,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:57,452 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] [2023-11-23 22:38:57,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:38:57,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:57,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1255637144, now seen corresponding path program 1 times [2023-11-23 22:38:57,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:57,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767067527] [2023-11-23 22:38:57,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:57,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:57,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:57,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767067527] [2023-11-23 22:38:57,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767067527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:57,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:57,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603809140] [2023-11-23 22:38:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:57,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:57,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:57,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:57,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:57,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 360 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:57,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:57,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:57,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:58,093 INFO L124 PetriNetUnfolderBase]: 748/1784 cut-off events. [2023-11-23 22:38:58,094 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:58,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1784 events. 748/1784 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 9090 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2787. Up to 1008 conditions per place. [2023-11-23 22:38:58,110 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/359 dead transitions. [2023-11-23 22:38:58,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 359 transitions, 786 flow [2023-11-23 22:38:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:58,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:58,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:58,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,183 INFO L175 Difference]: Start difference. First operand has 357 places, 360 transitions, 732 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:58,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 359 transitions, 786 flow [2023-11-23 22:38:58,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 359 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:58,191 INFO L231 Difference]: Finished difference. Result has 356 places, 359 transitions, 730 flow [2023-11-23 22:38:58,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=356, PETRI_TRANSITIONS=359} [2023-11-23 22:38:58,193 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -89 predicate places. [2023-11-23 22:38:58,193 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 359 transitions, 730 flow [2023-11-23 22:38:58,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:58,195 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] [2023-11-23 22:38:58,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:38:58,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:58,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:58,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1034621983, now seen corresponding path program 1 times [2023-11-23 22:38:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:58,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967200510] [2023-11-23 22:38:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:58,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:58,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:58,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967200510] [2023-11-23 22:38:58,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967200510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:58,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:58,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:58,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219119777] [2023-11-23 22:38:58,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:58,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:58,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:58,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:58,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:58,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:58,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 359 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:58,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:58,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:58,738 INFO L124 PetriNetUnfolderBase]: 748/1783 cut-off events. [2023-11-23 22:38:58,738 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:58,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1783 events. 748/1783 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9067 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2778. Up to 1008 conditions per place. [2023-11-23 22:38:58,758 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2023-11-23 22:38:58,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 358 transitions, 784 flow [2023-11-23 22:38:58,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:58,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:58,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:58,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:58,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,775 INFO L175 Difference]: Start difference. First operand has 356 places, 359 transitions, 730 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:58,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 358 transitions, 784 flow [2023-11-23 22:38:58,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 358 transitions, 780 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:58,784 INFO L231 Difference]: Finished difference. Result has 355 places, 358 transitions, 728 flow [2023-11-23 22:38:58,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=355, PETRI_TRANSITIONS=358} [2023-11-23 22:38:58,786 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -90 predicate places. [2023-11-23 22:38:58,786 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 358 transitions, 728 flow [2023-11-23 22:38:58,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:58,788 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] [2023-11-23 22:38:58,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:38:58,788 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:58,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:58,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1237512460, now seen corresponding path program 1 times [2023-11-23 22:38:58,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:58,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7217062] [2023-11-23 22:38:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:58,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:58,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:58,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:58,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7217062] [2023-11-23 22:38:58,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7217062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:58,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:58,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:58,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312399655] [2023-11-23 22:38:58,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:58,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:58,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:58,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:58,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:58,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 483 [2023-11-23 22:38:58,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 358 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:58,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:58,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 483 [2023-11-23 22:38:58,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:59,378 INFO L124 PetriNetUnfolderBase]: 748/1782 cut-off events. [2023-11-23 22:38:59,379 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:59,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1782 events. 748/1782 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9101 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2769. Up to 1008 conditions per place. [2023-11-23 22:38:59,394 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 2 changer transitions 0/357 dead transitions. [2023-11-23 22:38:59,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 357 transitions, 782 flow [2023-11-23 22:38:59,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2023-11-23 22:38:59,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7839889579020014 [2023-11-23 22:38:59,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1136 transitions. [2023-11-23 22:38:59,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1136 transitions. [2023-11-23 22:38:59,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:59,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1136 transitions. [2023-11-23 22:38:59,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:59,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:59,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:59,410 INFO L175 Difference]: Start difference. First operand has 355 places, 358 transitions, 728 flow. Second operand 3 states and 1136 transitions. [2023-11-23 22:38:59,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 357 transitions, 782 flow [2023-11-23 22:38:59,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 357 transitions, 778 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:38:59,419 INFO L231 Difference]: Finished difference. Result has 354 places, 357 transitions, 726 flow [2023-11-23 22:38:59,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=354, PETRI_TRANSITIONS=357} [2023-11-23 22:38:59,421 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -91 predicate places. [2023-11-23 22:38:59,421 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 357 transitions, 726 flow [2023-11-23 22:38:59,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:59,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:38:59,422 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] [2023-11-23 22:38:59,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:38:59,423 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:38:59,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:59,423 INFO L85 PathProgramCache]: Analyzing trace with hash -514234231, now seen corresponding path program 1 times [2023-11-23 22:38:59,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:38:59,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178215381] [2023-11-23 22:38:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:59,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:38:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:59,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:59,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:38:59,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178215381] [2023-11-23 22:38:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178215381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:59,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:59,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:59,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26352965] [2023-11-23 22:38:59,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:59,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:59,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:38:59,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:59,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:59,483 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:38:59,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 357 transitions, 726 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:38:59,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:38:59,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:38:59,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:38:59,954 INFO L124 PetriNetUnfolderBase]: 748/1781 cut-off events. [2023-11-23 22:38:59,954 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:38:59,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1781 events. 748/1781 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9105 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2757. Up to 1005 conditions per place. [2023-11-23 22:38:59,973 INFO L140 encePairwiseOnDemand]: 481/483 looper letters, 24 selfloop transitions, 1 changer transitions 0/356 dead transitions. [2023-11-23 22:38:59,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 356 transitions, 774 flow [2023-11-23 22:38:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:59,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:38:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2023-11-23 22:38:59,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.790200138026225 [2023-11-23 22:38:59,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2023-11-23 22:38:59,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2023-11-23 22:38:59,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:38:59,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2023-11-23 22:38:59,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,007 INFO L175 Difference]: Start difference. First operand has 354 places, 357 transitions, 726 flow. Second operand 3 states and 1145 transitions. [2023-11-23 22:39:00,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 356 transitions, 774 flow [2023-11-23 22:39:00,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 356 transitions, 770 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:39:00,017 INFO L231 Difference]: Finished difference. Result has 353 places, 356 transitions, 722 flow [2023-11-23 22:39:00,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=353, PETRI_TRANSITIONS=356} [2023-11-23 22:39:00,021 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -92 predicate places. [2023-11-23 22:39:00,021 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 356 transitions, 722 flow [2023-11-23 22:39:00,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:00,022 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, 1, 1, 1, 1] [2023-11-23 22:39:00,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:39:00,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:00,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:00,023 INFO L85 PathProgramCache]: Analyzing trace with hash -235246473, now seen corresponding path program 1 times [2023-11-23 22:39:00,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:00,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921967518] [2023-11-23 22:39:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:00,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:00,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:00,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921967518] [2023-11-23 22:39:00,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921967518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:00,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:00,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:00,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817472412] [2023-11-23 22:39:00,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:00,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:00,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:00,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:00,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:00,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 483 [2023-11-23 22:39:00,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 356 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:00,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 483 [2023-11-23 22:39:00,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:00,703 INFO L124 PetriNetUnfolderBase]: 748/1780 cut-off events. [2023-11-23 22:39:00,704 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:00,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 1780 events. 748/1780 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9100 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2757. Up to 1007 conditions per place. [2023-11-23 22:39:00,721 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 25 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2023-11-23 22:39:00,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 355 transitions, 774 flow [2023-11-23 22:39:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1138 transitions. [2023-11-23 22:39:00,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7853692201518289 [2023-11-23 22:39:00,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1138 transitions. [2023-11-23 22:39:00,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1138 transitions. [2023-11-23 22:39:00,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:00,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1138 transitions. [2023-11-23 22:39:00,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 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) [2023-11-23 22:39:00,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,738 INFO L175 Difference]: Start difference. First operand has 353 places, 356 transitions, 722 flow. Second operand 3 states and 1138 transitions. [2023-11-23 22:39:00,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 355 transitions, 774 flow [2023-11-23 22:39:00,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 355 transitions, 773 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:00,748 INFO L231 Difference]: Finished difference. Result has 353 places, 355 transitions, 723 flow [2023-11-23 22:39:00,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=723, PETRI_PLACES=353, PETRI_TRANSITIONS=355} [2023-11-23 22:39:00,750 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -92 predicate places. [2023-11-23 22:39:00,751 INFO L495 AbstractCegarLoop]: Abstraction has has 353 places, 355 transitions, 723 flow [2023-11-23 22:39:00,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:00,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:00,752 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, 1, 1, 1, 1] [2023-11-23 22:39:00,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:39:00,752 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:00,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:00,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1861774780, now seen corresponding path program 1 times [2023-11-23 22:39:00,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:00,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809882418] [2023-11-23 22:39:00,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:00,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:01,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809882418] [2023-11-23 22:39:01,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809882418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:01,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:01,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:39:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291111656] [2023-11-23 22:39:01,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:01,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:39:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:39:01,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:39:01,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 483 [2023-11-23 22:39:01,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 355 transitions, 723 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:01,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:01,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 483 [2023-11-23 22:39:01,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:03,647 INFO L124 PetriNetUnfolderBase]: 3568/5972 cut-off events. [2023-11-23 22:39:03,647 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-23 22:39:03,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10664 conditions, 5972 events. 3568/5972 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 33398 event pairs, 2473 based on Foata normal form. 0/5585 useless extension candidates. Maximal degree in co-relation 10561. Up to 4608 conditions per place. [2023-11-23 22:39:03,698 INFO L140 encePairwiseOnDemand]: 471/483 looper letters, 54 selfloop transitions, 10 changer transitions 0/353 dead transitions. [2023-11-23 22:39:03,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 353 transitions, 847 flow [2023-11-23 22:39:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:39:03,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:39:03,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2064 transitions. [2023-11-23 22:39:03,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7122153209109731 [2023-11-23 22:39:03,706 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2064 transitions. [2023-11-23 22:39:03,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2064 transitions. [2023-11-23 22:39:03,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:03,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2064 transitions. [2023-11-23 22:39:03,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 344.0) internal successors, (2064), 6 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:03,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:03,722 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:03,723 INFO L175 Difference]: Start difference. First operand has 353 places, 355 transitions, 723 flow. Second operand 6 states and 2064 transitions. [2023-11-23 22:39:03,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 353 transitions, 847 flow [2023-11-23 22:39:03,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 353 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:39:03,732 INFO L231 Difference]: Finished difference. Result has 354 places, 353 transitions, 735 flow [2023-11-23 22:39:03,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=715, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=735, PETRI_PLACES=354, PETRI_TRANSITIONS=353} [2023-11-23 22:39:03,736 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -91 predicate places. [2023-11-23 22:39:03,736 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 353 transitions, 735 flow [2023-11-23 22:39:03,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:03,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:03,738 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:03,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:39:03,738 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:03,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:03,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1632510508, now seen corresponding path program 1 times [2023-11-23 22:39:03,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:03,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051859647] [2023-11-23 22:39:03,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:03,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:03,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:03,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051859647] [2023-11-23 22:39:03,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051859647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:03,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:03,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:03,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533490786] [2023-11-23 22:39:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:03,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:03,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:03,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:03,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:03,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 353 transitions, 735 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:03,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:03,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:03,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:04,326 INFO L124 PetriNetUnfolderBase]: 748/1777 cut-off events. [2023-11-23 22:39:04,327 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:04,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1777 events. 748/1777 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9090 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2833. Up to 1005 conditions per place. [2023-11-23 22:39:04,340 INFO L140 encePairwiseOnDemand]: 481/483 looper letters, 24 selfloop transitions, 1 changer transitions 0/352 dead transitions. [2023-11-23 22:39:04,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 352 transitions, 783 flow [2023-11-23 22:39:04,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:04,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:04,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2023-11-23 22:39:04,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.790200138026225 [2023-11-23 22:39:04,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2023-11-23 22:39:04,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2023-11-23 22:39:04,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:04,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2023-11-23 22:39:04,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,354 INFO L175 Difference]: Start difference. First operand has 354 places, 353 transitions, 735 flow. Second operand 3 states and 1145 transitions. [2023-11-23 22:39:04,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 352 transitions, 783 flow [2023-11-23 22:39:04,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 352 transitions, 763 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:39:04,363 INFO L231 Difference]: Finished difference. Result has 350 places, 352 transitions, 715 flow [2023-11-23 22:39:04,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=715, PETRI_PLACES=350, PETRI_TRANSITIONS=352} [2023-11-23 22:39:04,365 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -95 predicate places. [2023-11-23 22:39:04,365 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 352 transitions, 715 flow [2023-11-23 22:39:04,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:04,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:04,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:39:04,370 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:04,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1431404765, now seen corresponding path program 1 times [2023-11-23 22:39:04,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:04,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84634685] [2023-11-23 22:39:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:04,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:04,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:04,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84634685] [2023-11-23 22:39:04,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84634685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:04,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:04,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:04,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137425255] [2023-11-23 22:39:04,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:04,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:04,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:04,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 483 [2023-11-23 22:39:04,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 352 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:04,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 483 [2023-11-23 22:39:04,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:04,914 INFO L124 PetriNetUnfolderBase]: 748/1776 cut-off events. [2023-11-23 22:39:04,914 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:04,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1776 events. 748/1776 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9064 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2754. Up to 1007 conditions per place. [2023-11-23 22:39:04,930 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 25 selfloop transitions, 2 changer transitions 0/351 dead transitions. [2023-11-23 22:39:04,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 351 transitions, 767 flow [2023-11-23 22:39:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1138 transitions. [2023-11-23 22:39:04,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7853692201518289 [2023-11-23 22:39:04,936 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1138 transitions. [2023-11-23 22:39:04,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1138 transitions. [2023-11-23 22:39:04,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:04,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1138 transitions. [2023-11-23 22:39:04,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 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) [2023-11-23 22:39:04,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,945 INFO L175 Difference]: Start difference. First operand has 350 places, 352 transitions, 715 flow. Second operand 3 states and 1138 transitions. [2023-11-23 22:39:04,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 351 transitions, 767 flow [2023-11-23 22:39:04,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 351 transitions, 766 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:04,953 INFO L231 Difference]: Finished difference. Result has 350 places, 351 transitions, 716 flow [2023-11-23 22:39:04,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=350, PETRI_TRANSITIONS=351} [2023-11-23 22:39:04,955 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -95 predicate places. [2023-11-23 22:39:04,955 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 351 transitions, 716 flow [2023-11-23 22:39:04,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:04,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:04,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:39:04,957 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:04,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1617308348, now seen corresponding path program 1 times [2023-11-23 22:39:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020884974] [2023-11-23 22:39:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:04,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:05,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:05,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:05,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020884974] [2023-11-23 22:39:05,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020884974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:05,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:05,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:05,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321956940] [2023-11-23 22:39:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:05,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:05,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:05,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 483 [2023-11-23 22:39:05,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 351 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:05,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 483 [2023-11-23 22:39:05,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:05,550 INFO L124 PetriNetUnfolderBase]: 748/1774 cut-off events. [2023-11-23 22:39:05,550 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:05,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2858 conditions, 1774 events. 748/1774 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9051 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2754. Up to 1007 conditions per place. [2023-11-23 22:39:05,566 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 1 changer transitions 0/349 dead transitions. [2023-11-23 22:39:05,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 349 transitions, 766 flow [2023-11-23 22:39:05,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1139 transitions. [2023-11-23 22:39:05,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7860593512767425 [2023-11-23 22:39:05,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1139 transitions. [2023-11-23 22:39:05,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1139 transitions. [2023-11-23 22:39:05,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:05,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1139 transitions. [2023-11-23 22:39:05,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,581 INFO L175 Difference]: Start difference. First operand has 350 places, 351 transitions, 716 flow. Second operand 3 states and 1139 transitions. [2023-11-23 22:39:05,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 349 transitions, 766 flow [2023-11-23 22:39:05,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 349 transitions, 762 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:39:05,590 INFO L231 Difference]: Finished difference. Result has 348 places, 349 transitions, 710 flow [2023-11-23 22:39:05,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=710, PETRI_PLACES=348, PETRI_TRANSITIONS=349} [2023-11-23 22:39:05,592 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -97 predicate places. [2023-11-23 22:39:05,592 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 349 transitions, 710 flow [2023-11-23 22:39:05,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:05,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:05,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:39:05,593 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:05,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1771394298, now seen corresponding path program 1 times [2023-11-23 22:39:05,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:05,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296844010] [2023-11-23 22:39:05,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:05,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:05,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296844010] [2023-11-23 22:39:05,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296844010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:05,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:05,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:05,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759029958] [2023-11-23 22:39:05,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:05,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:05,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:05,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:05,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:05,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:05,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 349 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:05,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:05,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:05,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:06,134 INFO L124 PetriNetUnfolderBase]: 748/1773 cut-off events. [2023-11-23 22:39:06,135 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:06,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2854 conditions, 1773 events. 748/1773 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9098 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2750. Up to 1005 conditions per place. [2023-11-23 22:39:06,150 INFO L140 encePairwiseOnDemand]: 481/483 looper letters, 24 selfloop transitions, 1 changer transitions 0/348 dead transitions. [2023-11-23 22:39:06,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 348 transitions, 758 flow [2023-11-23 22:39:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:06,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2023-11-23 22:39:06,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.790200138026225 [2023-11-23 22:39:06,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2023-11-23 22:39:06,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2023-11-23 22:39:06,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:06,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2023-11-23 22:39:06,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,164 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,165 INFO L175 Difference]: Start difference. First operand has 348 places, 349 transitions, 710 flow. Second operand 3 states and 1145 transitions. [2023-11-23 22:39:06,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 348 transitions, 758 flow [2023-11-23 22:39:06,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 348 transitions, 757 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:06,173 INFO L231 Difference]: Finished difference. Result has 348 places, 348 transitions, 709 flow [2023-11-23 22:39:06,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=709, PETRI_PLACES=348, PETRI_TRANSITIONS=348} [2023-11-23 22:39:06,175 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -97 predicate places. [2023-11-23 22:39:06,175 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 348 transitions, 709 flow [2023-11-23 22:39:06,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:06,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:06,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:39:06,176 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:06,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1502802317, now seen corresponding path program 1 times [2023-11-23 22:39:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950633832] [2023-11-23 22:39:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:06,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:06,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:06,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950633832] [2023-11-23 22:39:06,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950633832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:06,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:06,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:06,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833569307] [2023-11-23 22:39:06,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:06,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:06,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:06,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:06,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 483 [2023-11-23 22:39:06,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 348 transitions, 709 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:06,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 483 [2023-11-23 22:39:06,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:06,702 INFO L124 PetriNetUnfolderBase]: 748/1771 cut-off events. [2023-11-23 22:39:06,702 INFO L125 PetriNetUnfolderBase]: For 49/177 co-relation queries the response was YES. [2023-11-23 22:39:06,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2855 conditions, 1771 events. 748/1771 cut-off events. For 49/177 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9115 event pairs, 485 based on Foata normal form. 0/1606 useless extension candidates. Maximal degree in co-relation 2751. Up to 1007 conditions per place. [2023-11-23 22:39:06,718 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 26 selfloop transitions, 1 changer transitions 0/346 dead transitions. [2023-11-23 22:39:06,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 346 transitions, 759 flow [2023-11-23 22:39:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1139 transitions. [2023-11-23 22:39:06,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7860593512767425 [2023-11-23 22:39:06,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1139 transitions. [2023-11-23 22:39:06,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1139 transitions. [2023-11-23 22:39:06,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:06,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1139 transitions. [2023-11-23 22:39:06,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,731 INFO L175 Difference]: Start difference. First operand has 348 places, 348 transitions, 709 flow. Second operand 3 states and 1139 transitions. [2023-11-23 22:39:06,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 346 transitions, 759 flow [2023-11-23 22:39:06,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 346 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:06,739 INFO L231 Difference]: Finished difference. Result has 347 places, 346 transitions, 706 flow [2023-11-23 22:39:06,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=347, PETRI_TRANSITIONS=346} [2023-11-23 22:39:06,741 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -98 predicate places. [2023-11-23 22:39:06,741 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 346 transitions, 706 flow [2023-11-23 22:39:06,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:06,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:06,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 22:39:06,742 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:06,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1741465582, now seen corresponding path program 1 times [2023-11-23 22:39:06,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:06,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301316270] [2023-11-23 22:39:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:06,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:06,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:06,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:06,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301316270] [2023-11-23 22:39:06,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301316270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:06,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:06,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:06,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670798406] [2023-11-23 22:39:06,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:06,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:06,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:06,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 346 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:06,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:06,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:06,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:07,768 INFO L124 PetriNetUnfolderBase]: 1256/2978 cut-off events. [2023-11-23 22:39:07,768 INFO L125 PetriNetUnfolderBase]: For 83/316 co-relation queries the response was YES. [2023-11-23 22:39:07,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4804 conditions, 2978 events. 1256/2978 cut-off events. For 83/316 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 18701 event pairs, 792 based on Foata normal form. 0/2668 useless extension candidates. Maximal degree in co-relation 4700. Up to 1084 conditions per place. [2023-11-23 22:39:07,794 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 44 selfloop transitions, 2 changer transitions 0/366 dead transitions. [2023-11-23 22:39:07,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 366 transitions, 846 flow [2023-11-23 22:39:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1166 transitions. [2023-11-23 22:39:07,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8046928916494134 [2023-11-23 22:39:07,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1166 transitions. [2023-11-23 22:39:07,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1166 transitions. [2023-11-23 22:39:07,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:07,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1166 transitions. [2023-11-23 22:39:07,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:07,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:07,810 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:07,811 INFO L175 Difference]: Start difference. First operand has 347 places, 346 transitions, 706 flow. Second operand 3 states and 1166 transitions. [2023-11-23 22:39:07,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 366 transitions, 846 flow [2023-11-23 22:39:07,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 366 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:07,821 INFO L231 Difference]: Finished difference. Result has 348 places, 346 transitions, 713 flow [2023-11-23 22:39:07,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=713, PETRI_PLACES=348, PETRI_TRANSITIONS=346} [2023-11-23 22:39:07,823 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -97 predicate places. [2023-11-23 22:39:07,823 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 346 transitions, 713 flow [2023-11-23 22:39:07,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:07,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:07,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:07,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 22:39:07,824 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:07,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1488887228, now seen corresponding path program 1 times [2023-11-23 22:39:07,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:07,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121983886] [2023-11-23 22:39:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:07,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:07,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121983886] [2023-11-23 22:39:07,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121983886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:07,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:07,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585740717] [2023-11-23 22:39:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:07,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:07,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:07,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:07,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:07,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:07,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 346 transitions, 713 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:07,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:07,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:07,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:09,491 INFO L124 PetriNetUnfolderBase]: 1871/4601 cut-off events. [2023-11-23 22:39:09,492 INFO L125 PetriNetUnfolderBase]: For 420/755 co-relation queries the response was YES. [2023-11-23 22:39:09,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7680 conditions, 4601 events. 1871/4601 cut-off events. For 420/755 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 33595 event pairs, 796 based on Foata normal form. 3/4094 useless extension candidates. Maximal degree in co-relation 7575. Up to 1415 conditions per place. [2023-11-23 22:39:09,554 INFO L140 encePairwiseOnDemand]: 479/483 looper letters, 45 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2023-11-23 22:39:09,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 368 transitions, 868 flow [2023-11-23 22:39:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:09,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:09,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-11-23 22:39:09,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8053830227743272 [2023-11-23 22:39:09,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-11-23 22:39:09,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-11-23 22:39:09,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:09,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-11-23 22:39:09,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:09,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:09,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:09,569 INFO L175 Difference]: Start difference. First operand has 348 places, 346 transitions, 713 flow. Second operand 3 states and 1167 transitions. [2023-11-23 22:39:09,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 368 transitions, 868 flow [2023-11-23 22:39:09,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 368 transitions, 865 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:09,578 INFO L231 Difference]: Finished difference. Result has 350 places, 348 transitions, 741 flow [2023-11-23 22:39:09,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=350, PETRI_TRANSITIONS=348} [2023-11-23 22:39:09,580 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -95 predicate places. [2023-11-23 22:39:09,580 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 348 transitions, 741 flow [2023-11-23 22:39:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:09,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:09,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:09,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 22:39:09,581 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:09,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:09,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1492282070, now seen corresponding path program 1 times [2023-11-23 22:39:09,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:09,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321181729] [2023-11-23 22:39:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:09,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:09,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:09,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321181729] [2023-11-23 22:39:09,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321181729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:09,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:09,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:09,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283544700] [2023-11-23 22:39:09,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:09,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:09,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:09,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:09,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 348 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:09,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:09,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:09,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:11,675 INFO L124 PetriNetUnfolderBase]: 3256/7781 cut-off events. [2023-11-23 22:39:11,676 INFO L125 PetriNetUnfolderBase]: For 2834/3325 co-relation queries the response was YES. [2023-11-23 22:39:11,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14110 conditions, 7781 events. 3256/7781 cut-off events. For 2834/3325 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 64934 event pairs, 1976 based on Foata normal form. 0/6939 useless extension candidates. Maximal degree in co-relation 14004. Up to 2692 conditions per place. [2023-11-23 22:39:11,764 INFO L140 encePairwiseOnDemand]: 480/483 looper letters, 52 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2023-11-23 22:39:11,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 372 transitions, 931 flow [2023-11-23 22:39:11,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:11,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1166 transitions. [2023-11-23 22:39:11,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8046928916494134 [2023-11-23 22:39:11,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1166 transitions. [2023-11-23 22:39:11,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1166 transitions. [2023-11-23 22:39:11,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:11,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1166 transitions. [2023-11-23 22:39:11,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.6666666666667) internal successors, (1166), 3 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:11,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:11,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:11,788 INFO L175 Difference]: Start difference. First operand has 350 places, 348 transitions, 741 flow. Second operand 3 states and 1166 transitions. [2023-11-23 22:39:11,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 372 transitions, 931 flow [2023-11-23 22:39:11,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 372 transitions, 917 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:39:11,805 INFO L231 Difference]: Finished difference. Result has 350 places, 348 transitions, 741 flow [2023-11-23 22:39:11,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=350, PETRI_TRANSITIONS=348} [2023-11-23 22:39:11,806 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -95 predicate places. [2023-11-23 22:39:11,806 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 348 transitions, 741 flow [2023-11-23 22:39:11,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:11,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:11,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:11,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 22:39:11,808 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:11,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash -435941196, now seen corresponding path program 1 times [2023-11-23 22:39:11,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:11,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156493155] [2023-11-23 22:39:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:11,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:11,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156493155] [2023-11-23 22:39:11,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156493155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:11,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:11,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:39:11,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085909429] [2023-11-23 22:39:11,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:11,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:39:11,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:11,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:39:11,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:39:11,925 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 483 [2023-11-23 22:39:11,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 348 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:11,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:11,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 483 [2023-11-23 22:39:11,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:14,597 INFO L124 PetriNetUnfolderBase]: 4475/11090 cut-off events. [2023-11-23 22:39:14,597 INFO L125 PetriNetUnfolderBase]: For 3225/3923 co-relation queries the response was YES. [2023-11-23 22:39:14,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19969 conditions, 11090 events. 4475/11090 cut-off events. For 3225/3923 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 100034 event pairs, 1955 based on Foata normal form. 0/9874 useless extension candidates. Maximal degree in co-relation 19862. Up to 3688 conditions per place. [2023-11-23 22:39:14,686 INFO L140 encePairwiseOnDemand]: 479/483 looper letters, 53 selfloop transitions, 4 changer transitions 0/374 dead transitions. [2023-11-23 22:39:14,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 374 transitions, 940 flow [2023-11-23 22:39:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:39:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:39:14,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-11-23 22:39:14,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8053830227743272 [2023-11-23 22:39:14,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-11-23 22:39:14,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-11-23 22:39:14,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:14,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-11-23 22:39:14,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:14,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:14,700 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:14,700 INFO L175 Difference]: Start difference. First operand has 350 places, 348 transitions, 741 flow. Second operand 3 states and 1167 transitions. [2023-11-23 22:39:14,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 374 transitions, 940 flow [2023-11-23 22:39:14,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 374 transitions, 937 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:39:14,710 INFO L231 Difference]: Finished difference. Result has 352 places, 350 transitions, 769 flow [2023-11-23 22:39:14,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=352, PETRI_TRANSITIONS=350} [2023-11-23 22:39:14,711 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -93 predicate places. [2023-11-23 22:39:14,712 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 350 transitions, 769 flow [2023-11-23 22:39:14,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.0) internal successors, (1122), 3 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:14,712 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:14,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:14,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 22:39:14,713 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:14,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash 174942266, now seen corresponding path program 1 times [2023-11-23 22:39:14,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:14,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729935483] [2023-11-23 22:39:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:14,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:15,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:15,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729935483] [2023-11-23 22:39:15,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729935483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:15,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:15,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:39:15,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115152210] [2023-11-23 22:39:15,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:15,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:39:15,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:15,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:39:15,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:39:15,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 483 [2023-11-23 22:39:15,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 350 transitions, 769 flow. Second operand has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:15,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:15,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 483 [2023-11-23 22:39:15,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:25,851 INFO L124 PetriNetUnfolderBase]: 21295/33311 cut-off events. [2023-11-23 22:39:25,851 INFO L125 PetriNetUnfolderBase]: For 23820/23820 co-relation queries the response was YES. [2023-11-23 22:39:25,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76238 conditions, 33311 events. 21295/33311 cut-off events. For 23820/23820 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 228414 event pairs, 2052 based on Foata normal form. 0/32141 useless extension candidates. Maximal degree in co-relation 76129. Up to 9785 conditions per place. [2023-11-23 22:39:26,134 INFO L140 encePairwiseOnDemand]: 478/483 looper letters, 129 selfloop transitions, 4 changer transitions 0/437 dead transitions. [2023-11-23 22:39:26,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 437 transitions, 1393 flow [2023-11-23 22:39:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:39:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:39:26,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2248 transitions. [2023-11-23 22:39:26,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7757073844030365 [2023-11-23 22:39:26,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2248 transitions. [2023-11-23 22:39:26,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2248 transitions. [2023-11-23 22:39:26,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:26,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2248 transitions. [2023-11-23 22:39:26,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 374.6666666666667) internal successors, (2248), 6 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:26,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:26,157 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:26,157 INFO L175 Difference]: Start difference. First operand has 352 places, 350 transitions, 769 flow. Second operand 6 states and 2248 transitions. [2023-11-23 22:39:26,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 437 transitions, 1393 flow [2023-11-23 22:39:26,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 437 transitions, 1361 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:39:26,195 INFO L231 Difference]: Finished difference. Result has 354 places, 349 transitions, 767 flow [2023-11-23 22:39:26,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=767, PETRI_PLACES=354, PETRI_TRANSITIONS=349} [2023-11-23 22:39:26,196 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -91 predicate places. [2023-11-23 22:39:26,196 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 349 transitions, 767 flow [2023-11-23 22:39:26,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 360.8333333333333) internal successors, (2165), 6 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:26,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:26,197 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:26,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 22:39:26,198 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:26,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:26,198 INFO L85 PathProgramCache]: Analyzing trace with hash 150580743, now seen corresponding path program 1 times [2023-11-23 22:39:26,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058044799] [2023-11-23 22:39:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:27,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:27,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:27,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058044799] [2023-11-23 22:39:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058044799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:27,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:27,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:39:27,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219623034] [2023-11-23 22:39:27,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:27,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:39:27,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:27,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:39:27,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:39:27,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 483 [2023-11-23 22:39:27,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 349 transitions, 767 flow. Second operand has 6 states, 6 states have (on average 361.1666666666667) internal successors, (2167), 6 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:27,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:27,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 483 [2023-11-23 22:39:27,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:39:32,725 INFO L124 PetriNetUnfolderBase]: 8390/16122 cut-off events. [2023-11-23 22:39:32,725 INFO L125 PetriNetUnfolderBase]: For 8541/8941 co-relation queries the response was YES. [2023-11-23 22:39:32,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33766 conditions, 16122 events. 8390/16122 cut-off events. For 8541/8941 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 126441 event pairs, 2539 based on Foata normal form. 0/14965 useless extension candidates. Maximal degree in co-relation 33657. Up to 5746 conditions per place. [2023-11-23 22:39:32,895 INFO L140 encePairwiseOnDemand]: 478/483 looper letters, 109 selfloop transitions, 4 changer transitions 0/416 dead transitions. [2023-11-23 22:39:32,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 416 transitions, 1271 flow [2023-11-23 22:39:32,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:39:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:39:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2232 transitions. [2023-11-23 22:39:32,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7701863354037267 [2023-11-23 22:39:32,905 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2232 transitions. [2023-11-23 22:39:32,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2232 transitions. [2023-11-23 22:39:32,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:39:32,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2232 transitions. [2023-11-23 22:39:32,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 372.0) internal successors, (2232), 6 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:32,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:32,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:32,922 INFO L175 Difference]: Start difference. First operand has 354 places, 349 transitions, 767 flow. Second operand 6 states and 2232 transitions. [2023-11-23 22:39:32,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 416 transitions, 1271 flow [2023-11-23 22:39:32,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 416 transitions, 1264 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:39:32,937 INFO L231 Difference]: Finished difference. Result has 354 places, 348 transitions, 766 flow [2023-11-23 22:39:32,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=354, PETRI_TRANSITIONS=348} [2023-11-23 22:39:32,938 INFO L281 CegarLoopForPetriNet]: 445 programPoint places, -91 predicate places. [2023-11-23 22:39:32,938 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 348 transitions, 766 flow [2023-11-23 22:39:32,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.1666666666667) internal successors, (2167), 6 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:32,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:39:32,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:39:32,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 22:39:32,941 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 169 more)] === [2023-11-23 22:39:32,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:39:32,942 INFO L85 PathProgramCache]: Analyzing trace with hash 10590554, now seen corresponding path program 1 times [2023-11-23 22:39:32,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:39:32,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150785688] [2023-11-23 22:39:32,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:39:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:39:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:39:34,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:39:34,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:39:34,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150785688] [2023-11-23 22:39:34,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150785688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:39:34,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:39:34,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:39:34,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694772370] [2023-11-23 22:39:34,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:39:34,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:39:34,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:39:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:39:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:39:34,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 483 [2023-11-23 22:39:34,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 348 transitions, 766 flow. Second operand has 6 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:39:34,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:39:34,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 483 [2023-11-23 22:39:34,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand