./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU --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 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:44,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:44,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:06:44,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:44,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:44,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:44,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:44,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:44,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:44,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:44,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:44,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:44,466 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:44,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:44,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:44,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:44,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:44,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:44,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:44,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:44,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:44,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:44,471 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:06:44,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:44,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:44,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:44,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:44,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:44,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:44,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:44,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:44,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:44,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:44,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:44,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:44,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:44,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:44,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:44,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:44,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:44,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:44,477 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_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21325645cf7d2c394d0eaa1628a16a96624f1addcdd1b56c7e8aa2473acfaf07 [2024-10-31 22:06:44,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:44,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:44,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:44,914 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:44,915 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:44,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c Unable to find full path for "g++" [2024-10-31 22:06:47,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:47,331 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:47,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2024-10-31 22:06:47,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/data/74e4759c6/e013ae417f324a88a844959e3a831469/FLAGd61a2c2cb [2024-10-31 22:06:47,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/data/74e4759c6/e013ae417f324a88a844959e3a831469 [2024-10-31 22:06:47,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:47,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:47,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:47,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:47,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:47,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572446a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47, skipping insertion in model container [2024-10-31 22:06:47,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:47,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:47,655 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:47,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:47,711 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:47,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47 WrapperNode [2024-10-31 22:06:47,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:47,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:47,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:47,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:47,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,752 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 183 [2024-10-31 22:06:47,752 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:47,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:47,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:47,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:47,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:47,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:47,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:47,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:47,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (1/1) ... [2024-10-31 22:06:47,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:47,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35e96885-31d3-4d51-92c4-ab3b4e262fbd/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:47,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:06:47,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:06:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:06:47,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:06:47,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:06:47,868 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:06:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-31 22:06:47,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-31 22:06:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:06:47,869 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-31 22:06:47,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-31 22:06:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-31 22:06:47,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-31 22:06:47,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:47,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:47,872 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:48,002 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:48,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:48,598 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:48,598 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:48,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:48,644 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:06:48,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:48 BoogieIcfgContainer [2024-10-31 22:06:48,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:48,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:48,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:48,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:48,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:47" (1/3) ... [2024-10-31 22:06:48,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b7406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:48, skipping insertion in model container [2024-10-31 22:06:48,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:47" (2/3) ... [2024-10-31 22:06:48,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4b7406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:48, skipping insertion in model container [2024-10-31 22:06:48,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:48" (3/3) ... [2024-10-31 22:06:48,661 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-10-31 22:06:48,719 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:48,721 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2024-10-31 22:06:48,721 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:48,977 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-10-31 22:06:49,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 371 places, 373 transitions, 788 flow [2024-10-31 22:06:49,324 INFO L124 PetriNetUnfolderBase]: 21/367 cut-off events. [2024-10-31 22:06:49,325 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:06:49,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 367 events. 21/367 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 684 event pairs, 0 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 300. Up to 2 conditions per place. [2024-10-31 22:06:49,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 371 places, 373 transitions, 788 flow [2024-10-31 22:06:49,355 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 346 transitions, 728 flow [2024-10-31 22:06:49,365 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:49,372 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e1f18b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:49,372 INFO L334 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2024-10-31 22:06:49,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:49,380 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:06:49,380 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:49,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:49,381 INFO L204 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] [2024-10-31 22:06:49,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:49,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash -748009484, now seen corresponding path program 1 times [2024-10-31 22:06:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:49,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343531206] [2024-10-31 22:06:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:49,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:49,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343531206] [2024-10-31 22:06:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343531206] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:49,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961536663] [2024-10-31 22:06:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:49,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:49,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:49,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:49,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 373 [2024-10-31 22:06:49,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 346 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:49,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:49,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 373 [2024-10-31 22:06:49,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:49,973 INFO L124 PetriNetUnfolderBase]: 37/473 cut-off events. [2024-10-31 22:06:49,973 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-31 22:06:49,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 473 events. 37/473 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1661 event pairs, 20 based on Foata normal form. 91/466 useless extension candidates. Maximal degree in co-relation 485. Up to 68 conditions per place. [2024-10-31 22:06:49,984 INFO L140 encePairwiseOnDemand]: 363/373 looper letters, 22 selfloop transitions, 2 changer transitions 1/338 dead transitions. [2024-10-31 22:06:49,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 338 transitions, 760 flow [2024-10-31 22:06:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:49,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2024-10-31 22:06:50,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.934763181411975 [2024-10-31 22:06:50,015 INFO L175 Difference]: Start difference. First operand has 346 places, 346 transitions, 728 flow. Second operand 3 states and 1046 transitions. [2024-10-31 22:06:50,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 338 transitions, 760 flow [2024-10-31 22:06:50,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 338 transitions, 736 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-31 22:06:50,033 INFO L231 Difference]: Finished difference. Result has 335 places, 337 transitions, 690 flow [2024-10-31 22:06:50,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=335, PETRI_TRANSITIONS=337} [2024-10-31 22:06:50,043 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -11 predicate places. [2024-10-31 22:06:50,043 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 337 transitions, 690 flow [2024-10-31 22:06:50,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:50,046 INFO L204 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] [2024-10-31 22:06:50,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:50,047 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:50,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:50,049 INFO L85 PathProgramCache]: Analyzing trace with hash -698880175, now seen corresponding path program 1 times [2024-10-31 22:06:50,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916885566] [2024-10-31 22:06:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:50,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:50,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:50,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916885566] [2024-10-31 22:06:50,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916885566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:50,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:50,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:50,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692553235] [2024-10-31 22:06:50,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:50,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:50,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:50,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:50,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 373 [2024-10-31 22:06:50,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 337 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:50,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 373 [2024-10-31 22:06:50,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:50,403 INFO L124 PetriNetUnfolderBase]: 37/471 cut-off events. [2024-10-31 22:06:50,403 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:06:50,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 471 events. 37/471 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1592 event pairs, 20 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 532. Up to 67 conditions per place. [2024-10-31 22:06:50,414 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 21 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2024-10-31 22:06:50,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 336 transitions, 734 flow [2024-10-31 22:06:50,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:50,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1041 transitions. [2024-10-31 22:06:50,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9302949061662198 [2024-10-31 22:06:50,417 INFO L175 Difference]: Start difference. First operand has 335 places, 337 transitions, 690 flow. Second operand 3 states and 1041 transitions. [2024-10-31 22:06:50,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 336 transitions, 734 flow [2024-10-31 22:06:50,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 336 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:50,428 INFO L231 Difference]: Finished difference. Result has 333 places, 336 transitions, 688 flow [2024-10-31 22:06:50,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=333, PETRI_TRANSITIONS=336} [2024-10-31 22:06:50,430 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -13 predicate places. [2024-10-31 22:06:50,431 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 336 transitions, 688 flow [2024-10-31 22:06:50,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:50,432 INFO L204 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] [2024-10-31 22:06:50,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:50,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:50,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -320754955, now seen corresponding path program 1 times [2024-10-31 22:06:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:50,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160306013] [2024-10-31 22:06:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:50,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:50,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160306013] [2024-10-31 22:06:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160306013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:50,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740319751] [2024-10-31 22:06:50,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:50,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:50,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:50,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:50,574 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 373 [2024-10-31 22:06:50,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 336 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:50,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 373 [2024-10-31 22:06:50,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:50,709 INFO L124 PetriNetUnfolderBase]: 37/452 cut-off events. [2024-10-31 22:06:50,710 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:06:50,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 452 events. 37/452 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1452 event pairs, 20 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 503. Up to 68 conditions per place. [2024-10-31 22:06:50,720 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 22 selfloop transitions, 2 changer transitions 0/335 dead transitions. [2024-10-31 22:06:50,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 335 transitions, 734 flow [2024-10-31 22:06:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-10-31 22:06:50,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9285075960679178 [2024-10-31 22:06:50,724 INFO L175 Difference]: Start difference. First operand has 333 places, 336 transitions, 688 flow. Second operand 3 states and 1039 transitions. [2024-10-31 22:06:50,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 335 transitions, 734 flow [2024-10-31 22:06:50,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 335 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:50,732 INFO L231 Difference]: Finished difference. Result has 332 places, 335 transitions, 686 flow [2024-10-31 22:06:50,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=332, PETRI_TRANSITIONS=335} [2024-10-31 22:06:50,734 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -14 predicate places. [2024-10-31 22:06:50,735 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 335 transitions, 686 flow [2024-10-31 22:06:50,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:50,737 INFO L204 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] [2024-10-31 22:06:50,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:50,737 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:50,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -132641644, now seen corresponding path program 1 times [2024-10-31 22:06:50,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:50,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069561689] [2024-10-31 22:06:50,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:50,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:50,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:50,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069561689] [2024-10-31 22:06:50,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069561689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:50,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:50,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:50,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354656247] [2024-10-31 22:06:50,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:50,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:50,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:50,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:50,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 373 [2024-10-31 22:06:50,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 335 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:50,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:50,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 373 [2024-10-31 22:06:50,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:51,005 INFO L124 PetriNetUnfolderBase]: 37/433 cut-off events. [2024-10-31 22:06:51,006 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:06:51,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 433 events. 37/433 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1230 event pairs, 20 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 472. Up to 67 conditions per place. [2024-10-31 22:06:51,015 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 21 selfloop transitions, 2 changer transitions 0/334 dead transitions. [2024-10-31 22:06:51,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 334 transitions, 730 flow [2024-10-31 22:06:51,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1041 transitions. [2024-10-31 22:06:51,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9302949061662198 [2024-10-31 22:06:51,019 INFO L175 Difference]: Start difference. First operand has 332 places, 335 transitions, 686 flow. Second operand 3 states and 1041 transitions. [2024-10-31 22:06:51,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 334 transitions, 730 flow [2024-10-31 22:06:51,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 334 transitions, 726 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:51,027 INFO L231 Difference]: Finished difference. Result has 331 places, 334 transitions, 684 flow [2024-10-31 22:06:51,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=331, PETRI_TRANSITIONS=334} [2024-10-31 22:06:51,029 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -15 predicate places. [2024-10-31 22:06:51,029 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 334 transitions, 684 flow [2024-10-31 22:06:51,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:51,031 INFO L204 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] [2024-10-31 22:06:51,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:51,031 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:51,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -350897220, now seen corresponding path program 1 times [2024-10-31 22:06:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538006729] [2024-10-31 22:06:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538006729] [2024-10-31 22:06:51,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538006729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332199443] [2024-10-31 22:06:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:51,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 373 [2024-10-31 22:06:51,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 334 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 373 [2024-10-31 22:06:51,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:51,276 INFO L124 PetriNetUnfolderBase]: 37/414 cut-off events. [2024-10-31 22:06:51,276 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:06:51,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 414 events. 37/414 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1067 event pairs, 20 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 443. Up to 68 conditions per place. [2024-10-31 22:06:51,285 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 22 selfloop transitions, 2 changer transitions 0/333 dead transitions. [2024-10-31 22:06:51,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 333 transitions, 730 flow [2024-10-31 22:06:51,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:51,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:51,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2024-10-31 22:06:51,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9285075960679178 [2024-10-31 22:06:51,289 INFO L175 Difference]: Start difference. First operand has 331 places, 334 transitions, 684 flow. Second operand 3 states and 1039 transitions. [2024-10-31 22:06:51,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 333 transitions, 730 flow [2024-10-31 22:06:51,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 333 transitions, 726 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:51,296 INFO L231 Difference]: Finished difference. Result has 330 places, 333 transitions, 682 flow [2024-10-31 22:06:51,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=682, PETRI_PLACES=330, PETRI_TRANSITIONS=333} [2024-10-31 22:06:51,299 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -16 predicate places. [2024-10-31 22:06:51,300 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 333 transitions, 682 flow [2024-10-31 22:06:51,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,302 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:51,302 INFO L204 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] [2024-10-31 22:06:51,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:51,303 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:51,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash 200376289, now seen corresponding path program 1 times [2024-10-31 22:06:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:51,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173149463] [2024-10-31 22:06:51,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:51,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173149463] [2024-10-31 22:06:51,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173149463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:51,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582101609] [2024-10-31 22:06:51,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:51,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:51,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:51,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 373 [2024-10-31 22:06:51,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 333 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 373 [2024-10-31 22:06:51,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:51,494 INFO L124 PetriNetUnfolderBase]: 37/395 cut-off events. [2024-10-31 22:06:51,494 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:06:51,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 395 events. 37/395 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 911 event pairs, 20 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 412. Up to 67 conditions per place. [2024-10-31 22:06:51,501 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 21 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2024-10-31 22:06:51,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 332 transitions, 726 flow [2024-10-31 22:06:51,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:51,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1041 transitions. [2024-10-31 22:06:51,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9302949061662198 [2024-10-31 22:06:51,504 INFO L175 Difference]: Start difference. First operand has 330 places, 333 transitions, 682 flow. Second operand 3 states and 1041 transitions. [2024-10-31 22:06:51,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 332 transitions, 726 flow [2024-10-31 22:06:51,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 332 transitions, 722 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:51,532 INFO L231 Difference]: Finished difference. Result has 329 places, 332 transitions, 680 flow [2024-10-31 22:06:51,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=329, PETRI_TRANSITIONS=332} [2024-10-31 22:06:51,534 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -17 predicate places. [2024-10-31 22:06:51,534 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 332 transitions, 680 flow [2024-10-31 22:06:51,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:51,536 INFO L204 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] [2024-10-31 22:06:51,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:51,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:51,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash -936151976, now seen corresponding path program 1 times [2024-10-31 22:06:51,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:51,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388459911] [2024-10-31 22:06:51,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:51,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:51,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:51,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:51,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388459911] [2024-10-31 22:06:51,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388459911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:51,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:51,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:51,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83072202] [2024-10-31 22:06:51,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:51,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:51,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:51,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:51,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:51,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 373 [2024-10-31 22:06:51,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 332 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:51,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:51,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 373 [2024-10-31 22:06:51,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:52,972 INFO L124 PetriNetUnfolderBase]: 755/4731 cut-off events. [2024-10-31 22:06:52,972 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-10-31 22:06:53,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 4731 events. 755/4731 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 46078 event pairs, 387 based on Foata normal form. 0/3476 useless extension candidates. Maximal degree in co-relation 5667. Up to 936 conditions per place. [2024-10-31 22:06:53,102 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 21 selfloop transitions, 2 changer transitions 0/331 dead transitions. [2024-10-31 22:06:53,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 331 transitions, 724 flow [2024-10-31 22:06:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:53,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:53,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1041 transitions. [2024-10-31 22:06:53,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9302949061662198 [2024-10-31 22:06:53,106 INFO L175 Difference]: Start difference. First operand has 329 places, 332 transitions, 680 flow. Second operand 3 states and 1041 transitions. [2024-10-31 22:06:53,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 331 transitions, 724 flow [2024-10-31 22:06:53,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 331 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:53,116 INFO L231 Difference]: Finished difference. Result has 328 places, 331 transitions, 678 flow [2024-10-31 22:06:53,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=328, PETRI_TRANSITIONS=331} [2024-10-31 22:06:53,118 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -18 predicate places. [2024-10-31 22:06:53,118 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 331 transitions, 678 flow [2024-10-31 22:06:53,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:53,119 INFO L204 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] [2024-10-31 22:06:53,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:53,120 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:53,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash -551824842, now seen corresponding path program 1 times [2024-10-31 22:06:53,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778185745] [2024-10-31 22:06:53,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:53,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778185745] [2024-10-31 22:06:53,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778185745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:53,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:53,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:53,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452137931] [2024-10-31 22:06:53,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:53,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:53,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 373 [2024-10-31 22:06:53,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 331 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:53,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 373 [2024-10-31 22:06:53,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:53,445 INFO L124 PetriNetUnfolderBase]: 52/461 cut-off events. [2024-10-31 22:06:53,445 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:06:53,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 461 events. 52/461 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1742 event pairs, 30 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 533. Up to 90 conditions per place. [2024-10-31 22:06:53,455 INFO L140 encePairwiseOnDemand]: 364/373 looper letters, 29 selfloop transitions, 3 changer transitions 0/331 dead transitions. [2024-10-31 22:06:53,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 331 transitions, 747 flow [2024-10-31 22:06:53,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2024-10-31 22:06:53,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9240393208221627 [2024-10-31 22:06:53,460 INFO L175 Difference]: Start difference. First operand has 328 places, 331 transitions, 678 flow. Second operand 3 states and 1034 transitions. [2024-10-31 22:06:53,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 331 transitions, 747 flow [2024-10-31 22:06:53,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 331 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:53,470 INFO L231 Difference]: Finished difference. Result has 323 places, 326 transitions, 675 flow [2024-10-31 22:06:53,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=323, PETRI_TRANSITIONS=326} [2024-10-31 22:06:53,475 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -23 predicate places. [2024-10-31 22:06:53,476 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 326 transitions, 675 flow [2024-10-31 22:06:53,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:53,478 INFO L204 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] [2024-10-31 22:06:53,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:53,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:53,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2022671171, now seen corresponding path program 1 times [2024-10-31 22:06:53,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876724328] [2024-10-31 22:06:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:53,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876724328] [2024-10-31 22:06:53,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876724328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:53,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:53,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:53,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604884118] [2024-10-31 22:06:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:53,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:53,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:53,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:53,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:53,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 373 [2024-10-31 22:06:53,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 326 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:53,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 373 [2024-10-31 22:06:53,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:53,749 INFO L124 PetriNetUnfolderBase]: 52/457 cut-off events. [2024-10-31 22:06:53,749 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-31 22:06:53,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 457 events. 52/457 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1691 event pairs, 30 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 515. Up to 88 conditions per place. [2024-10-31 22:06:53,758 INFO L140 encePairwiseOnDemand]: 365/373 looper letters, 27 selfloop transitions, 3 changer transitions 0/327 dead transitions. [2024-10-31 22:06:53,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 327 transitions, 742 flow [2024-10-31 22:06:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1040 transitions. [2024-10-31 22:06:53,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9294012511170688 [2024-10-31 22:06:53,762 INFO L175 Difference]: Start difference. First operand has 323 places, 326 transitions, 675 flow. Second operand 3 states and 1040 transitions. [2024-10-31 22:06:53,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 327 transitions, 742 flow [2024-10-31 22:06:53,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 327 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:53,769 INFO L231 Difference]: Finished difference. Result has 320 places, 322 transitions, 675 flow [2024-10-31 22:06:53,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=320, PETRI_TRANSITIONS=322} [2024-10-31 22:06:53,770 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -26 predicate places. [2024-10-31 22:06:53,771 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 322 transitions, 675 flow [2024-10-31 22:06:53,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:53,772 INFO L204 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] [2024-10-31 22:06:53,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:53,772 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:53,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:53,773 INFO L85 PathProgramCache]: Analyzing trace with hash 370001196, now seen corresponding path program 1 times [2024-10-31 22:06:53,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:53,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574620846] [2024-10-31 22:06:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:53,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:53,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:53,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574620846] [2024-10-31 22:06:53,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574620846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:53,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:53,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:53,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90936373] [2024-10-31 22:06:53,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:53,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:53,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:53,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:53,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:53,886 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 373 [2024-10-31 22:06:53,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 322 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:53,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:53,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 373 [2024-10-31 22:06:53,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:54,079 INFO L124 PetriNetUnfolderBase]: 70/752 cut-off events. [2024-10-31 22:06:54,079 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:06:54,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 752 events. 70/752 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3799 event pairs, 25 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 825. Up to 96 conditions per place. [2024-10-31 22:06:54,096 INFO L140 encePairwiseOnDemand]: 363/373 looper letters, 32 selfloop transitions, 4 changer transitions 0/326 dead transitions. [2024-10-31 22:06:54,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 326 transitions, 763 flow [2024-10-31 22:06:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1038 transitions. [2024-10-31 22:06:54,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9276139410187667 [2024-10-31 22:06:54,100 INFO L175 Difference]: Start difference. First operand has 320 places, 322 transitions, 675 flow. Second operand 3 states and 1038 transitions. [2024-10-31 22:06:54,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 326 transitions, 763 flow [2024-10-31 22:06:54,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 326 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:54,109 INFO L231 Difference]: Finished difference. Result has 316 places, 318 transitions, 680 flow [2024-10-31 22:06:54,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=316, PETRI_TRANSITIONS=318} [2024-10-31 22:06:54,110 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -30 predicate places. [2024-10-31 22:06:54,110 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 318 transitions, 680 flow [2024-10-31 22:06:54,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:54,112 INFO L204 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] [2024-10-31 22:06:54,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:06:54,112 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:54,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash -911110627, now seen corresponding path program 1 times [2024-10-31 22:06:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851253211] [2024-10-31 22:06:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851253211] [2024-10-31 22:06:54,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851253211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:54,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:54,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:54,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058375299] [2024-10-31 22:06:54,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:54,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:54,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:54,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:54,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:54,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 373 [2024-10-31 22:06:54,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 318 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:54,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 373 [2024-10-31 22:06:54,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:54,456 INFO L124 PetriNetUnfolderBase]: 104/910 cut-off events. [2024-10-31 22:06:54,456 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-10-31 22:06:54,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 910 events. 104/910 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5052 event pairs, 9 based on Foata normal form. 0/795 useless extension candidates. Maximal degree in co-relation 875. Up to 151 conditions per place. [2024-10-31 22:06:54,477 INFO L140 encePairwiseOnDemand]: 365/373 looper letters, 31 selfloop transitions, 3 changer transitions 0/323 dead transitions. [2024-10-31 22:06:54,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 323 transitions, 767 flow [2024-10-31 22:06:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1044 transitions. [2024-10-31 22:06:54,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9329758713136729 [2024-10-31 22:06:54,480 INFO L175 Difference]: Start difference. First operand has 316 places, 318 transitions, 680 flow. Second operand 3 states and 1044 transitions. [2024-10-31 22:06:54,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 323 transitions, 767 flow [2024-10-31 22:06:54,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 323 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:54,488 INFO L231 Difference]: Finished difference. Result has 313 places, 314 transitions, 679 flow [2024-10-31 22:06:54,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=313, PETRI_TRANSITIONS=314} [2024-10-31 22:06:54,489 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -33 predicate places. [2024-10-31 22:06:54,489 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 314 transitions, 679 flow [2024-10-31 22:06:54,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:54,491 INFO L204 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] [2024-10-31 22:06:54,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:06:54,491 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:54,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:54,492 INFO L85 PathProgramCache]: Analyzing trace with hash 407258650, now seen corresponding path program 1 times [2024-10-31 22:06:54,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:54,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660890915] [2024-10-31 22:06:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:54,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:54,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:54,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660890915] [2024-10-31 22:06:54,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660890915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:54,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:54,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106936930] [2024-10-31 22:06:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:54,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:54,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:54,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:54,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:54,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 373 [2024-10-31 22:06:54,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 314 transitions, 679 flow. Second operand has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:54,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 373 [2024-10-31 22:06:54,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:54,941 INFO L124 PetriNetUnfolderBase]: 153/1421 cut-off events. [2024-10-31 22:06:54,941 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-31 22:06:54,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1421 events. 153/1421 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9640 event pairs, 12 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 1329. Up to 235 conditions per place. [2024-10-31 22:06:54,966 INFO L140 encePairwiseOnDemand]: 363/373 looper letters, 34 selfloop transitions, 4 changer transitions 0/320 dead transitions. [2024-10-31 22:06:54,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 320 transitions, 777 flow [2024-10-31 22:06:54,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:54,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1040 transitions. [2024-10-31 22:06:54,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9294012511170688 [2024-10-31 22:06:54,969 INFO L175 Difference]: Start difference. First operand has 313 places, 314 transitions, 679 flow. Second operand 3 states and 1040 transitions. [2024-10-31 22:06:54,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 320 transitions, 777 flow [2024-10-31 22:06:54,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 320 transitions, 774 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:54,975 INFO L231 Difference]: Finished difference. Result has 309 places, 310 transitions, 684 flow [2024-10-31 22:06:54,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=309, PETRI_TRANSITIONS=310} [2024-10-31 22:06:54,976 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -37 predicate places. [2024-10-31 22:06:54,976 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 310 transitions, 684 flow [2024-10-31 22:06:54,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.0) internal successors, (999), 3 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:54,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:54,977 INFO L204 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] [2024-10-31 22:06:54,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:06:54,977 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:54,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash 533560071, now seen corresponding path program 1 times [2024-10-31 22:06:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:54,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731483304] [2024-10-31 22:06:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:54,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:55,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:55,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731483304] [2024-10-31 22:06:55,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731483304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:55,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:55,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473538356] [2024-10-31 22:06:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:55,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:55,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:55,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:55,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 373 [2024-10-31 22:06:55,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 310 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:55,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 373 [2024-10-31 22:06:55,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:55,556 INFO L124 PetriNetUnfolderBase]: 222/2002 cut-off events. [2024-10-31 22:06:55,556 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-10-31 22:06:55,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2627 conditions, 2002 events. 222/2002 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 15440 event pairs, 19 based on Foata normal form. 1/1819 useless extension candidates. Maximal degree in co-relation 1756. Up to 332 conditions per place. [2024-10-31 22:06:55,604 INFO L140 encePairwiseOnDemand]: 365/373 looper letters, 30 selfloop transitions, 3 changer transitions 18/317 dead transitions. [2024-10-31 22:06:55,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 317 transitions, 779 flow [2024-10-31 22:06:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:55,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:55,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1045 transitions. [2024-10-31 22:06:55,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9338695263628239 [2024-10-31 22:06:55,609 INFO L175 Difference]: Start difference. First operand has 309 places, 310 transitions, 684 flow. Second operand 3 states and 1045 transitions. [2024-10-31 22:06:55,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 317 transitions, 779 flow [2024-10-31 22:06:55,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 317 transitions, 775 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:06:55,618 INFO L231 Difference]: Finished difference. Result has 306 places, 288 transitions, 646 flow [2024-10-31 22:06:55,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=306, PETRI_TRANSITIONS=288} [2024-10-31 22:06:55,620 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -40 predicate places. [2024-10-31 22:06:55,620 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 288 transitions, 646 flow [2024-10-31 22:06:55,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.0) internal successors, (1008), 3 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:55,621 INFO L204 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] [2024-10-31 22:06:55,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:06:55,622 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:06:55,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:55,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1316544112, now seen corresponding path program 1 times [2024-10-31 22:06:55,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:55,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124837683] [2024-10-31 22:06:55,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:55,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:55,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:55,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124837683] [2024-10-31 22:06:55,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124837683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:55,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:55,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:06:55,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241831304] [2024-10-31 22:06:55,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:55,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:55,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:55,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:55,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:55,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 373 [2024-10-31 22:06:55,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 288 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:06:55,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:55,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 373 [2024-10-31 22:06:55,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:08,997 INFO L124 PetriNetUnfolderBase]: 18691/70752 cut-off events. [2024-10-31 22:07:08,997 INFO L125 PetriNetUnfolderBase]: For 1780/1780 co-relation queries the response was YES. [2024-10-31 22:07:09,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102346 conditions, 70752 events. 18691/70752 cut-off events. For 1780/1780 co-relation queries the response was YES. Maximal size of possible extension queue 2563. Compared 1065754 event pairs, 9985 based on Foata normal form. 0/60885 useless extension candidates. Maximal degree in co-relation 36296. Up to 23154 conditions per place. [2024-10-31 22:07:10,380 INFO L140 encePairwiseOnDemand]: 361/373 looper letters, 29 selfloop transitions, 6 changer transitions 0/293 dead transitions. [2024-10-31 22:07:10,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 293 transitions, 731 flow [2024-10-31 22:07:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:10,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1040 transitions. [2024-10-31 22:07:10,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9294012511170688 [2024-10-31 22:07:10,383 INFO L175 Difference]: Start difference. First operand has 306 places, 288 transitions, 646 flow. Second operand 3 states and 1040 transitions. [2024-10-31 22:07:10,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 293 transitions, 731 flow [2024-10-31 22:07:10,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 293 transitions, 728 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:10,585 INFO L231 Difference]: Finished difference. Result has 285 places, 288 transitions, 673 flow [2024-10-31 22:07:10,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=673, PETRI_PLACES=285, PETRI_TRANSITIONS=288} [2024-10-31 22:07:10,587 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -61 predicate places. [2024-10-31 22:07:10,587 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 288 transitions, 673 flow [2024-10-31 22:07:10,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:10,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:10,588 INFO L204 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] [2024-10-31 22:07:10,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:07:10,588 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:07:10,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1563741403, now seen corresponding path program 1 times [2024-10-31 22:07:10,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:10,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944748381] [2024-10-31 22:07:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:10,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:10,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:10,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:10,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:10,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944748381] [2024-10-31 22:07:10,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944748381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:10,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:10,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:10,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49635572] [2024-10-31 22:07:10,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:10,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:10,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:10,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:10,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 373 [2024-10-31 22:07:10,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 288 transitions, 673 flow. Second operand has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:10,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:10,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 373 [2024-10-31 22:07:10,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:12,916 INFO L124 PetriNetUnfolderBase]: 2051/10608 cut-off events. [2024-10-31 22:07:12,916 INFO L125 PetriNetUnfolderBase]: For 73/109 co-relation queries the response was YES. [2024-10-31 22:07:13,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15083 conditions, 10608 events. 2051/10608 cut-off events. For 73/109 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 128472 event pairs, 546 based on Foata normal form. 0/9038 useless extension candidates. Maximal degree in co-relation 8297. Up to 2106 conditions per place. [2024-10-31 22:07:13,210 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 25 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2024-10-31 22:07:13,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 292 transitions, 740 flow [2024-10-31 22:07:13,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:13,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:13,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2024-10-31 22:07:13,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.935656836461126 [2024-10-31 22:07:13,219 INFO L175 Difference]: Start difference. First operand has 285 places, 288 transitions, 673 flow. Second operand 3 states and 1047 transitions. [2024-10-31 22:07:13,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 292 transitions, 740 flow [2024-10-31 22:07:13,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 292 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:07:13,240 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 675 flow [2024-10-31 22:07:13,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=286, PETRI_TRANSITIONS=287} [2024-10-31 22:07:13,242 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -60 predicate places. [2024-10-31 22:07:13,243 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 675 flow [2024-10-31 22:07:13,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:13,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:13,244 INFO L204 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] [2024-10-31 22:07:13,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:07:13,245 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:07:13,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:13,245 INFO L85 PathProgramCache]: Analyzing trace with hash -297074701, now seen corresponding path program 1 times [2024-10-31 22:07:13,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:13,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210213099] [2024-10-31 22:07:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:13,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210213099] [2024-10-31 22:07:13,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210213099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:13,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:13,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:13,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18857284] [2024-10-31 22:07:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:13,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:13,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 373 [2024-10-31 22:07:13,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 287 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:13,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:13,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 373 [2024-10-31 22:07:13,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:17,254 INFO L124 PetriNetUnfolderBase]: 4001/17647 cut-off events. [2024-10-31 22:07:17,254 INFO L125 PetriNetUnfolderBase]: For 444/468 co-relation queries the response was YES. [2024-10-31 22:07:17,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27008 conditions, 17647 events. 4001/17647 cut-off events. For 444/468 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 229719 event pairs, 1404 based on Foata normal form. 0/15685 useless extension candidates. Maximal degree in co-relation 26219. Up to 3152 conditions per place. [2024-10-31 22:07:17,584 INFO L140 encePairwiseOnDemand]: 370/373 looper letters, 24 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2024-10-31 22:07:17,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 291 transitions, 740 flow [2024-10-31 22:07:17,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:17,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:17,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1049 transitions. [2024-10-31 22:07:17,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9374441465594281 [2024-10-31 22:07:17,591 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 675 flow. Second operand 3 states and 1049 transitions. [2024-10-31 22:07:17,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 291 transitions, 740 flow [2024-10-31 22:07:17,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 291 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:17,604 INFO L231 Difference]: Finished difference. Result has 285 places, 286 transitions, 673 flow [2024-10-31 22:07:17,605 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=373, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=673, PETRI_PLACES=285, PETRI_TRANSITIONS=286} [2024-10-31 22:07:17,606 INFO L277 CegarLoopForPetriNet]: 346 programPoint places, -61 predicate places. [2024-10-31 22:07:17,606 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 286 transitions, 673 flow [2024-10-31 22:07:17,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:17,607 INFO L204 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] [2024-10-31 22:07:17,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:07:17,607 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 84 more)] === [2024-10-31 22:07:17,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:17,608 INFO L85 PathProgramCache]: Analyzing trace with hash 329484035, now seen corresponding path program 1 times [2024-10-31 22:07:17,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:17,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002438577] [2024-10-31 22:07:17,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:17,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:17,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:17,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002438577] [2024-10-31 22:07:17,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002438577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:17,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:17,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:17,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39024239] [2024-10-31 22:07:17,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:17,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:17,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:17,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:17,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:17,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 373 [2024-10-31 22:07:17,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 286 transitions, 673 flow. Second operand has 3 states, 3 states have (on average 343.3333333333333) internal successors, (1030), 3 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:17,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:17,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 373 [2024-10-31 22:07:17,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand