./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx --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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:01:43,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:01:43,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:01:43,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:01:43,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:01:43,949 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:01:43,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:01:43,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:01:43,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:01:43,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:01:43,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:01:43,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:01:43,961 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:01:43,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:01:43,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:01:43,964 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:01:43,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:01:43,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:01:43,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:01:43,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:01:43,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:01:43,967 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:01:43,968 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:01:43,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:01:43,968 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:01:43,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:01:43,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:01:43,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:01:43,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:01:43,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:01:43,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:43,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:01:43,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:01:43,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:01:43,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:01:43,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:01:43,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:01:43,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:01:43,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:01:43,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:01:43,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:01:43,976 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_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2023-11-21 21:01:44,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:01:44,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:01:44,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:01:44,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:01:44,335 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:01:44,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-21 21:01:48,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:01:48,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:01:48,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-21 21:01:48,316 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/data/133f0415c/ecc64e50f621434caea16180954eb2fd/FLAG0817f1fa2 [2023-11-21 21:01:48,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/data/133f0415c/ecc64e50f621434caea16180954eb2fd [2023-11-21 21:01:48,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:01:48,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:01:48,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:48,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:01:48,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:01:48,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7244f864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48, skipping insertion in model container [2023-11-21 21:01:48,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,400 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:01:48,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:48,700 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:01:48,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:48,783 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:01:48,783 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:01:48,789 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:01:48,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48 WrapperNode [2023-11-21 21:01:48,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:48,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:48,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:01:48,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:01:48,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,876 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 387 [2023-11-21 21:01:48,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:48,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:01:48,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:01:48,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:01:48,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,983 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:01:48,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:01:48,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:01:48,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:01:48,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (1/1) ... [2023-11-21 21:01:48,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:49,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:49,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:49,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:01:49,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:01:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:01:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:01:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:01:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 21:01:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 21:01:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 21:01:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 21:01:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 21:01:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 21:01:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:01:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 21:01:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 21:01:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:01:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:01:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:01:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:01:49,102 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 21:01:49,286 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:01:49,289 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:01:50,295 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:01:50,920 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:01:50,920 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 21:01:50,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:50 BoogieIcfgContainer [2023-11-21 21:01:50,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:01:50,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:01:50,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:01:50,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:01:50,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:01:48" (1/3) ... [2023-11-21 21:01:50,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd51ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:50, skipping insertion in model container [2023-11-21 21:01:50,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:48" (2/3) ... [2023-11-21 21:01:50,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd51ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:50, skipping insertion in model container [2023-11-21 21:01:50,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:50" (3/3) ... [2023-11-21 21:01:50,957 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-11-21 21:01:50,969 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:01:50,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:01:50,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-21 21:01:50,984 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:01:51,185 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 21:01:51,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 390 places, 400 transitions, 821 flow [2023-11-21 21:01:51,635 INFO L124 PetriNetUnfolderBase]: 20/397 cut-off events. [2023-11-21 21:01:51,636 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 21:01:51,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 397 events. 20/397 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 832 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2023-11-21 21:01:51,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 390 places, 400 transitions, 821 flow [2023-11-21 21:01:51,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 370 transitions, 758 flow [2023-11-21 21:01:51,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:01:51,735 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d8bb709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:01:51,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-11-21 21:01:51,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:01:51,748 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-21 21:01:51,748 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:01:51,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:51,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:51,751 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:01:51,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1231075251, now seen corresponding path program 1 times [2023-11-21 21:01:51,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:51,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499093036] [2023-11-21 21:01:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:51,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:52,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:52,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:52,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499093036] [2023-11-21 21:01:52,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499093036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:52,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:52,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:52,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802643117] [2023-11-21 21:01:52,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:52,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:52,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:52,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:52,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:52,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 400 [2023-11-21 21:01:52,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 370 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:52,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:52,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 400 [2023-11-21 21:01:52,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:52,797 INFO L124 PetriNetUnfolderBase]: 32/713 cut-off events. [2023-11-21 21:01:52,797 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-21 21:01:52,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 713 events. 32/713 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3223 event pairs, 12 based on Foata normal form. 30/630 useless extension candidates. Maximal degree in co-relation 582. Up to 43 conditions per place. [2023-11-21 21:01:52,819 INFO L140 encePairwiseOnDemand]: 375/400 looper letters, 14 selfloop transitions, 2 changer transitions 3/347 dead transitions. [2023-11-21 21:01:52,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 347 transitions, 744 flow [2023-11-21 21:01:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:52,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2023-11-21 21:01:52,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9275 [2023-11-21 21:01:52,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1113 transitions. [2023-11-21 21:01:52,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1113 transitions. [2023-11-21 21:01:52,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:52,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1113 transitions. [2023-11-21 21:01:52,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:52,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:52,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:52,883 INFO L175 Difference]: Start difference. First operand has 362 places, 370 transitions, 758 flow. Second operand 3 states and 1113 transitions. [2023-11-21 21:01:52,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 347 transitions, 744 flow [2023-11-21 21:01:52,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 347 transitions, 732 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 21:01:52,905 INFO L231 Difference]: Finished difference. Result has 346 places, 344 transitions, 698 flow [2023-11-21 21:01:52,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=346, PETRI_TRANSITIONS=344} [2023-11-21 21:01:52,914 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -16 predicate places. [2023-11-21 21:01:52,915 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 344 transitions, 698 flow [2023-11-21 21:01:52,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:52,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:52,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:52,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:01:52,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:01:52,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:52,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1425325933, now seen corresponding path program 1 times [2023-11-21 21:01:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:52,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752616461] [2023-11-21 21:01:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:52,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:53,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:53,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752616461] [2023-11-21 21:01:53,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752616461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:53,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:53,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:53,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767656138] [2023-11-21 21:01:53,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:53,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:53,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:53,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:53,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:53,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 400 [2023-11-21 21:01:53,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 344 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:53,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 400 [2023-11-21 21:01:53,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:53,390 INFO L124 PetriNetUnfolderBase]: 23/691 cut-off events. [2023-11-21 21:01:53,390 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2023-11-21 21:01:53,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 691 events. 23/691 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3148 event pairs, 8 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 705. Up to 35 conditions per place. [2023-11-21 21:01:53,408 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 14 selfloop transitions, 2 changer transitions 0/343 dead transitions. [2023-11-21 21:01:53,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 343 transitions, 728 flow [2023-11-21 21:01:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:53,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2023-11-21 21:01:53,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9091666666666667 [2023-11-21 21:01:53,414 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2023-11-21 21:01:53,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2023-11-21 21:01:53,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:53,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2023-11-21 21:01:53,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,427 INFO L175 Difference]: Start difference. First operand has 346 places, 344 transitions, 698 flow. Second operand 3 states and 1091 transitions. [2023-11-21 21:01:53,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 343 transitions, 728 flow [2023-11-21 21:01:53,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 343 transitions, 724 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:53,438 INFO L231 Difference]: Finished difference. Result has 342 places, 343 transitions, 696 flow [2023-11-21 21:01:53,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=342, PETRI_TRANSITIONS=343} [2023-11-21 21:01:53,440 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -20 predicate places. [2023-11-21 21:01:53,440 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 343 transitions, 696 flow [2023-11-21 21:01:53,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:53,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:53,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:01:53,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:01:53,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:53,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1180099474, now seen corresponding path program 1 times [2023-11-21 21:01:53,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:53,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815103094] [2023-11-21 21:01:53,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:53,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:53,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815103094] [2023-11-21 21:01:53,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815103094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:53,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:53,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:53,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950938771] [2023-11-21 21:01:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:53,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:53,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:53,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:53,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:53,554 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 400 [2023-11-21 21:01:53,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 343 transitions, 696 flow. Second operand has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:53,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 400 [2023-11-21 21:01:53,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:01:53,837 INFO L124 PetriNetUnfolderBase]: 35/644 cut-off events. [2023-11-21 21:01:53,837 INFO L125 PetriNetUnfolderBase]: For 10/17 co-relation queries the response was YES. [2023-11-21 21:01:53,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 644 events. 35/644 cut-off events. For 10/17 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2830 event pairs, 16 based on Foata normal form. 0/553 useless extension candidates. Maximal degree in co-relation 673. Up to 56 conditions per place. [2023-11-21 21:01:53,855 INFO L140 encePairwiseOnDemand]: 395/400 looper letters, 15 selfloop transitions, 1 changer transitions 0/339 dead transitions. [2023-11-21 21:01:53,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 339 transitions, 720 flow [2023-11-21 21:01:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:01:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:01:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1088 transitions. [2023-11-21 21:01:53,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2023-11-21 21:01:53,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1088 transitions. [2023-11-21 21:01:53,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1088 transitions. [2023-11-21 21:01:53,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:01:53,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1088 transitions. [2023-11-21 21:01:53,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,877 INFO L175 Difference]: Start difference. First operand has 342 places, 343 transitions, 696 flow. Second operand 3 states and 1088 transitions. [2023-11-21 21:01:53,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 339 transitions, 720 flow [2023-11-21 21:01:53,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 339 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:01:53,889 INFO L231 Difference]: Finished difference. Result has 338 places, 339 transitions, 686 flow [2023-11-21 21:01:53,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=338, PETRI_TRANSITIONS=339} [2023-11-21 21:01:53,892 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -24 predicate places. [2023-11-21 21:01:53,892 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 339 transitions, 686 flow [2023-11-21 21:01:53,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:53,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:01:53,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:01:53,896 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:01:53,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1703228900, now seen corresponding path program 1 times [2023-11-21 21:01:53,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:53,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941260114] [2023-11-21 21:01:53,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:53,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:55,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:55,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:55,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941260114] [2023-11-21 21:01:55,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941260114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:55,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:55,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:01:55,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737156627] [2023-11-21 21:01:55,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:55,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:01:55,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:55,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:01:55,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:01:55,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 400 [2023-11-21 21:01:55,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 339 transitions, 686 flow. Second operand has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:55,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:01:55,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 400 [2023-11-21 21:01:55,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:00,733 INFO L124 PetriNetUnfolderBase]: 2430/11913 cut-off events. [2023-11-21 21:02:00,734 INFO L125 PetriNetUnfolderBase]: For 61/201 co-relation queries the response was YES. [2023-11-21 21:02:00,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15364 conditions, 11913 events. 2430/11913 cut-off events. For 61/201 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 130026 event pairs, 1966 based on Foata normal form. 0/10015 useless extension candidates. Maximal degree in co-relation 15325. Up to 3352 conditions per place. [2023-11-21 21:02:00,997 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 43 selfloop transitions, 5 changer transitions 0/338 dead transitions. [2023-11-21 21:02:00,997 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 338 transitions, 780 flow [2023-11-21 21:02:00,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:00,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:01,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2011 transitions. [2023-11-21 21:02:01,007 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8379166666666666 [2023-11-21 21:02:01,008 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2011 transitions. [2023-11-21 21:02:01,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2011 transitions. [2023-11-21 21:02:01,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:01,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2011 transitions. [2023-11-21 21:02:01,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.1666666666667) internal successors, (2011), 6 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,035 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,035 INFO L175 Difference]: Start difference. First operand has 338 places, 339 transitions, 686 flow. Second operand 6 states and 2011 transitions. [2023-11-21 21:02:01,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 338 transitions, 780 flow [2023-11-21 21:02:01,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 338 transitions, 779 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:02:01,047 INFO L231 Difference]: Finished difference. Result has 341 places, 338 transitions, 693 flow [2023-11-21 21:02:01,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=693, PETRI_PLACES=341, PETRI_TRANSITIONS=338} [2023-11-21 21:02:01,051 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -21 predicate places. [2023-11-21 21:02:01,052 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 338 transitions, 693 flow [2023-11-21 21:02:01,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:01,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:01,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:02:01,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:01,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:01,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1578714446, now seen corresponding path program 1 times [2023-11-21 21:02:01,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:01,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661129576] [2023-11-21 21:02:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:01,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661129576] [2023-11-21 21:02:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661129576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:01,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690565768] [2023-11-21 21:02:01,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:01,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:01,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:01,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 400 [2023-11-21 21:02:01,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 338 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:01,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 400 [2023-11-21 21:02:01,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:01,477 INFO L124 PetriNetUnfolderBase]: 62/816 cut-off events. [2023-11-21 21:02:01,477 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-21 21:02:01,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 816 events. 62/816 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4263 event pairs, 38 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 907. Up to 86 conditions per place. [2023-11-21 21:02:01,500 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 14 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-21 21:02:01,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 337 transitions, 723 flow [2023-11-21 21:02:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:01,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2023-11-21 21:02:01,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9091666666666667 [2023-11-21 21:02:01,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2023-11-21 21:02:01,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2023-11-21 21:02:01,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:01,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2023-11-21 21:02:01,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,523 INFO L175 Difference]: Start difference. First operand has 341 places, 338 transitions, 693 flow. Second operand 3 states and 1091 transitions. [2023-11-21 21:02:01,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 337 transitions, 723 flow [2023-11-21 21:02:01,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 337 transitions, 713 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 21:02:01,535 INFO L231 Difference]: Finished difference. Result has 337 places, 337 transitions, 685 flow [2023-11-21 21:02:01,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=337, PETRI_TRANSITIONS=337} [2023-11-21 21:02:01,540 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -25 predicate places. [2023-11-21 21:02:01,540 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 337 transitions, 685 flow [2023-11-21 21:02:01,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.3333333333333) internal successors, (1078), 3 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:01,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 21:02:01,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:01,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:01,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2083673395, now seen corresponding path program 1 times [2023-11-21 21:02:01,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:01,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882664114] [2023-11-21 21:02:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:01,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:01,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882664114] [2023-11-21 21:02:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882664114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:01,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:01,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804152791] [2023-11-21 21:02:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:01,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:01,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:01,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:01,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:01,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 400 [2023-11-21 21:02:01,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 337 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:01,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 400 [2023-11-21 21:02:01,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:01,951 INFO L124 PetriNetUnfolderBase]: 52/673 cut-off events. [2023-11-21 21:02:01,952 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 21:02:01,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 673 events. 52/673 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3095 event pairs, 28 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 718. Up to 73 conditions per place. [2023-11-21 21:02:01,967 INFO L140 encePairwiseOnDemand]: 395/400 looper letters, 15 selfloop transitions, 1 changer transitions 0/333 dead transitions. [2023-11-21 21:02:01,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 333 transitions, 709 flow [2023-11-21 21:02:01,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1088 transitions. [2023-11-21 21:02:01,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2023-11-21 21:02:01,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1088 transitions. [2023-11-21 21:02:01,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1088 transitions. [2023-11-21 21:02:01,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:01,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1088 transitions. [2023-11-21 21:02:01,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:01,987 INFO L175 Difference]: Start difference. First operand has 337 places, 337 transitions, 685 flow. Second operand 3 states and 1088 transitions. [2023-11-21 21:02:01,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 333 transitions, 709 flow [2023-11-21 21:02:01,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 333 transitions, 705 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:02,005 INFO L231 Difference]: Finished difference. Result has 333 places, 333 transitions, 675 flow [2023-11-21 21:02:02,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=333, PETRI_TRANSITIONS=333} [2023-11-21 21:02:02,011 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -29 predicate places. [2023-11-21 21:02:02,012 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 333 transitions, 675 flow [2023-11-21 21:02:02,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.0) internal successors, (1071), 3 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:02,014 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:02,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 21:02:02,015 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:02,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash 208486899, now seen corresponding path program 1 times [2023-11-21 21:02:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:02,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772799872] [2023-11-21 21:02:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:02,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:02,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:02,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772799872] [2023-11-21 21:02:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772799872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:02,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263226064] [2023-11-21 21:02:02,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:02,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:02,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:02,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:02,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:02,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 400 [2023-11-21 21:02:02,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 333 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:02,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 400 [2023-11-21 21:02:02,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:02,387 INFO L124 PetriNetUnfolderBase]: 35/593 cut-off events. [2023-11-21 21:02:02,388 INFO L125 PetriNetUnfolderBase]: For 8/10 co-relation queries the response was YES. [2023-11-21 21:02:02,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 593 events. 35/593 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2469 event pairs, 5 based on Foata normal form. 1/533 useless extension candidates. Maximal degree in co-relation 628. Up to 33 conditions per place. [2023-11-21 21:02:02,404 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 14 selfloop transitions, 3 changer transitions 0/333 dead transitions. [2023-11-21 21:02:02,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 333 transitions, 711 flow [2023-11-21 21:02:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:02,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1097 transitions. [2023-11-21 21:02:02,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9141666666666667 [2023-11-21 21:02:02,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1097 transitions. [2023-11-21 21:02:02,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1097 transitions. [2023-11-21 21:02:02,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:02,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1097 transitions. [2023-11-21 21:02:02,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,431 INFO L175 Difference]: Start difference. First operand has 333 places, 333 transitions, 675 flow. Second operand 3 states and 1097 transitions. [2023-11-21 21:02:02,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 333 transitions, 711 flow [2023-11-21 21:02:02,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 333 transitions, 710 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:02:02,443 INFO L231 Difference]: Finished difference. Result has 331 places, 330 transitions, 674 flow [2023-11-21 21:02:02,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=331, PETRI_TRANSITIONS=330} [2023-11-21 21:02:02,445 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -31 predicate places. [2023-11-21 21:02:02,446 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 330 transitions, 674 flow [2023-11-21 21:02:02,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:02,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:02,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 21:02:02,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:02,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1507514059, now seen corresponding path program 1 times [2023-11-21 21:02:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:02,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252107676] [2023-11-21 21:02:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:02,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:02,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252107676] [2023-11-21 21:02:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252107676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:02,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:02,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092704799] [2023-11-21 21:02:02,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:02,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:02,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:02,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 400 [2023-11-21 21:02:02,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 330 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:02,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:02,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 400 [2023-11-21 21:02:02,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:03,253 INFO L124 PetriNetUnfolderBase]: 237/2201 cut-off events. [2023-11-21 21:02:03,253 INFO L125 PetriNetUnfolderBase]: For 37/38 co-relation queries the response was YES. [2023-11-21 21:02:03,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 2201 events. 237/2201 cut-off events. For 37/38 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 15886 event pairs, 61 based on Foata normal form. 0/1937 useless extension candidates. Maximal degree in co-relation 2541. Up to 307 conditions per place. [2023-11-21 21:02:03,290 INFO L140 encePairwiseOnDemand]: 393/400 looper letters, 21 selfloop transitions, 3 changer transitions 0/334 dead transitions. [2023-11-21 21:02:03,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 334 transitions, 735 flow [2023-11-21 21:02:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1096 transitions. [2023-11-21 21:02:03,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9133333333333333 [2023-11-21 21:02:03,296 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1096 transitions. [2023-11-21 21:02:03,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1096 transitions. [2023-11-21 21:02:03,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:03,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1096 transitions. [2023-11-21 21:02:03,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.3333333333333) internal successors, (1096), 3 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,308 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,308 INFO L175 Difference]: Start difference. First operand has 331 places, 330 transitions, 674 flow. Second operand 3 states and 1096 transitions. [2023-11-21 21:02:03,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 334 transitions, 735 flow [2023-11-21 21:02:03,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 334 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:03,319 INFO L231 Difference]: Finished difference. Result has 328 places, 329 transitions, 681 flow [2023-11-21 21:02:03,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=681, PETRI_PLACES=328, PETRI_TRANSITIONS=329} [2023-11-21 21:02:03,322 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -34 predicate places. [2023-11-21 21:02:03,322 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 329 transitions, 681 flow [2023-11-21 21:02:03,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:03,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:03,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 21:02:03,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:03,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:03,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1298475331, now seen corresponding path program 1 times [2023-11-21 21:02:03,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:03,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347090528] [2023-11-21 21:02:03,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:03,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:03,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347090528] [2023-11-21 21:02:03,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347090528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:03,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:03,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365959775] [2023-11-21 21:02:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:03,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:03,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:03,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:03,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 400 [2023-11-21 21:02:03,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 329 transitions, 681 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:03,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 400 [2023-11-21 21:02:03,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:03,774 INFO L124 PetriNetUnfolderBase]: 121/1078 cut-off events. [2023-11-21 21:02:03,774 INFO L125 PetriNetUnfolderBase]: For 88/97 co-relation queries the response was YES. [2023-11-21 21:02:03,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1078 events. 121/1078 cut-off events. For 88/97 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6301 event pairs, 18 based on Foata normal form. 0/971 useless extension candidates. Maximal degree in co-relation 1308. Up to 116 conditions per place. [2023-11-21 21:02:03,793 INFO L140 encePairwiseOnDemand]: 393/400 looper letters, 18 selfloop transitions, 3 changer transitions 0/329 dead transitions. [2023-11-21 21:02:03,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 329 transitions, 730 flow [2023-11-21 21:02:03,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1091 transitions. [2023-11-21 21:02:03,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9091666666666667 [2023-11-21 21:02:03,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1091 transitions. [2023-11-21 21:02:03,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1091 transitions. [2023-11-21 21:02:03,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:03,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1091 transitions. [2023-11-21 21:02:03,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 363.6666666666667) internal successors, (1091), 3 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,813 INFO L175 Difference]: Start difference. First operand has 328 places, 329 transitions, 681 flow. Second operand 3 states and 1091 transitions. [2023-11-21 21:02:03,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 329 transitions, 730 flow [2023-11-21 21:02:03,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 329 transitions, 730 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 21:02:03,826 INFO L231 Difference]: Finished difference. Result has 326 places, 325 transitions, 679 flow [2023-11-21 21:02:03,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=679, PETRI_PLACES=326, PETRI_TRANSITIONS=325} [2023-11-21 21:02:03,828 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -36 predicate places. [2023-11-21 21:02:03,829 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 325 transitions, 679 flow [2023-11-21 21:02:03,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:03,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:03,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:03,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 21:02:03,849 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:03,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:03,850 INFO L85 PathProgramCache]: Analyzing trace with hash -283788647, now seen corresponding path program 1 times [2023-11-21 21:02:03,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:03,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856251174] [2023-11-21 21:02:03,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:03,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:04,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:04,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:04,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856251174] [2023-11-21 21:02:04,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856251174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:04,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:04,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 21:02:04,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683836076] [2023-11-21 21:02:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:04,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 21:02:04,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:04,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 21:02:04,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 21:02:04,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 400 [2023-11-21 21:02:04,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 325 transitions, 679 flow. Second operand has 7 states, 7 states have (on average 355.85714285714283) internal successors, (2491), 7 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:04,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:04,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 400 [2023-11-21 21:02:04,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:04,971 INFO L124 PetriNetUnfolderBase]: 109/1244 cut-off events. [2023-11-21 21:02:04,971 INFO L125 PetriNetUnfolderBase]: For 80/133 co-relation queries the response was YES. [2023-11-21 21:02:04,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1550 conditions, 1244 events. 109/1244 cut-off events. For 80/133 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7233 event pairs, 34 based on Foata normal form. 7/1134 useless extension candidates. Maximal degree in co-relation 1508. Up to 106 conditions per place. [2023-11-21 21:02:04,999 INFO L140 encePairwiseOnDemand]: 387/400 looper letters, 28 selfloop transitions, 14 changer transitions 0/344 dead transitions. [2023-11-21 21:02:05,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 344 transitions, 819 flow [2023-11-21 21:02:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 21:02:05,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-21 21:02:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3580 transitions. [2023-11-21 21:02:05,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.895 [2023-11-21 21:02:05,017 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3580 transitions. [2023-11-21 21:02:05,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3580 transitions. [2023-11-21 21:02:05,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:05,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3580 transitions. [2023-11-21 21:02:05,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 358.0) internal successors, (3580), 10 states have internal predecessors, (3580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:05,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 400.0) internal successors, (4400), 11 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:05,051 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 400.0) internal successors, (4400), 11 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:05,052 INFO L175 Difference]: Start difference. First operand has 326 places, 325 transitions, 679 flow. Second operand 10 states and 3580 transitions. [2023-11-21 21:02:05,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 344 transitions, 819 flow [2023-11-21 21:02:05,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 344 transitions, 813 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:05,067 INFO L231 Difference]: Finished difference. Result has 337 places, 332 transitions, 739 flow [2023-11-21 21:02:05,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=739, PETRI_PLACES=337, PETRI_TRANSITIONS=332} [2023-11-21 21:02:05,070 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -25 predicate places. [2023-11-21 21:02:05,070 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 332 transitions, 739 flow [2023-11-21 21:02:05,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 355.85714285714283) internal successors, (2491), 7 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:05,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:05,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:05,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 21:02:05,073 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:05,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:05,074 INFO L85 PathProgramCache]: Analyzing trace with hash 937916812, now seen corresponding path program 1 times [2023-11-21 21:02:05,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:05,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646541620] [2023-11-21 21:02:05,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:05,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:05,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:05,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646541620] [2023-11-21 21:02:05,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646541620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:05,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:05,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:05,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454813454] [2023-11-21 21:02:05,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:05,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:05,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:05,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:05,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:06,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 400 [2023-11-21 21:02:06,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 332 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 356.6666666666667) internal successors, (2140), 6 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:06,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:06,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 400 [2023-11-21 21:02:06,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:06,932 INFO L124 PetriNetUnfolderBase]: 133/1118 cut-off events. [2023-11-21 21:02:06,932 INFO L125 PetriNetUnfolderBase]: For 124/247 co-relation queries the response was YES. [2023-11-21 21:02:06,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1494 conditions, 1118 events. 133/1118 cut-off events. For 124/247 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6050 event pairs, 1 based on Foata normal form. 24/1039 useless extension candidates. Maximal degree in co-relation 1445. Up to 126 conditions per place. [2023-11-21 21:02:06,962 INFO L140 encePairwiseOnDemand]: 395/400 looper letters, 23 selfloop transitions, 4 changer transitions 0/339 dead transitions. [2023-11-21 21:02:06,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 339 transitions, 827 flow [2023-11-21 21:02:06,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2023-11-21 21:02:06,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970833333333333 [2023-11-21 21:02:06,972 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2153 transitions. [2023-11-21 21:02:06,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2153 transitions. [2023-11-21 21:02:06,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:06,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2153 transitions. [2023-11-21 21:02:06,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.8333333333333) internal successors, (2153), 6 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:06,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:06,990 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:06,991 INFO L175 Difference]: Start difference. First operand has 337 places, 332 transitions, 739 flow. Second operand 6 states and 2153 transitions. [2023-11-21 21:02:06,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 339 transitions, 827 flow [2023-11-21 21:02:06,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 339 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:02:07,001 INFO L231 Difference]: Finished difference. Result has 340 places, 331 transitions, 741 flow [2023-11-21 21:02:07,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=340, PETRI_TRANSITIONS=331} [2023-11-21 21:02:07,003 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -22 predicate places. [2023-11-21 21:02:07,003 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 331 transitions, 741 flow [2023-11-21 21:02:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.6666666666667) internal successors, (2140), 6 states have internal predecessors, (2140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:07,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:07,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:07,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 21:02:07,006 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:07,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash -369460759, now seen corresponding path program 1 times [2023-11-21 21:02:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:07,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027604136] [2023-11-21 21:02:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:07,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:07,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:07,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027604136] [2023-11-21 21:02:07,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027604136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:07,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:07,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:07,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774189136] [2023-11-21 21:02:07,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:07,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:02:07,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:07,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:02:07,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:02:07,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 400 [2023-11-21 21:02:07,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 331 transitions, 741 flow. Second operand has 5 states, 5 states have (on average 358.0) internal successors, (1790), 5 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:07,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:07,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 400 [2023-11-21 21:02:07,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:08,036 INFO L124 PetriNetUnfolderBase]: 223/2462 cut-off events. [2023-11-21 21:02:08,036 INFO L125 PetriNetUnfolderBase]: For 201/217 co-relation queries the response was YES. [2023-11-21 21:02:08,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3094 conditions, 2462 events. 223/2462 cut-off events. For 201/217 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 18949 event pairs, 68 based on Foata normal form. 11/2244 useless extension candidates. Maximal degree in co-relation 3045. Up to 218 conditions per place. [2023-11-21 21:02:08,083 INFO L140 encePairwiseOnDemand]: 394/400 looper letters, 30 selfloop transitions, 5 changer transitions 0/346 dead transitions. [2023-11-21 21:02:08,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 346 transitions, 859 flow [2023-11-21 21:02:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:02:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 21:02:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1813 transitions. [2023-11-21 21:02:08,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9065 [2023-11-21 21:02:08,093 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1813 transitions. [2023-11-21 21:02:08,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1813 transitions. [2023-11-21 21:02:08,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:08,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1813 transitions. [2023-11-21 21:02:08,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 362.6) internal successors, (1813), 5 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:08,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:08,111 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:08,111 INFO L175 Difference]: Start difference. First operand has 340 places, 331 transitions, 741 flow. Second operand 5 states and 1813 transitions. [2023-11-21 21:02:08,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 346 transitions, 859 flow [2023-11-21 21:02:08,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 346 transitions, 852 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:02:08,126 INFO L231 Difference]: Finished difference. Result has 342 places, 333 transitions, 759 flow [2023-11-21 21:02:08,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=759, PETRI_PLACES=342, PETRI_TRANSITIONS=333} [2023-11-21 21:02:08,128 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -20 predicate places. [2023-11-21 21:02:08,129 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 333 transitions, 759 flow [2023-11-21 21:02:08,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 358.0) internal successors, (1790), 5 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:08,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:08,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:08,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 21:02:08,131 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:08,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:08,132 INFO L85 PathProgramCache]: Analyzing trace with hash -427117438, now seen corresponding path program 1 times [2023-11-21 21:02:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:08,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928170495] [2023-11-21 21:02:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:08,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:08,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:08,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928170495] [2023-11-21 21:02:08,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928170495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:08,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:08,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992011886] [2023-11-21 21:02:08,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:08,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:09,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 400 [2023-11-21 21:02:09,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 333 transitions, 759 flow. Second operand has 6 states, 6 states have (on average 349.6666666666667) internal successors, (2098), 6 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:09,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:09,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 400 [2023-11-21 21:02:09,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:10,235 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1357] L64-->L67: Formula: (let ((.cse15 (* |v_thread3Thread1of1ForFork1_~i~2#1_15| 4))) (let ((.cse3 (+ .cse15 v_~A~0.offset_222))) (let ((.cse7 (select (select |v_#memory_int_133| v_~A~0.base_222) .cse3))) (let ((.cse8 (+ v_~mts3~0_159 .cse7))) (let ((.cse0 (<= .cse8 2147483647)) (.cse1 (<= .cse7 0)) (.cse2 (select |v_#race_483| v_~A~0.base_222)) (.cse5 (+ .cse15 v_~A~0.offset_222 1)) (.cse9 (+ .cse15 v_~A~0.offset_222 3)) (.cse12 (select |v_#race_471| v_~A~0.base_222)) (.cse6 (+ .cse15 v_~A~0.offset_222 2)) (.cse14 (<= 0 .cse7)) (.cse13 (<= 0 (+ v_~mts3~0_159 2147483648 .cse7)))) (and (not (= (ite (or .cse0 .cse1) 1 0) 0)) .cse0 (<= 0 (+ v_~sum~0_93 2147483648)) (let ((.cse4 (= |v_#race~A~0_277| 0)) (.cse10 (= |v_#race~mts3~0_254| 0)) (.cse11 (= |v_#race_483| (store |v_#race_472| v_~A~0.base_222 (store (store (store (store (select |v_#race_472| v_~A~0.base_222) .cse3 0) .cse5 0) .cse6 0) .cse9 0))))) (or (and (= (select .cse2 .cse3) 0) .cse4 (= (select .cse2 .cse5) 0) (= (select .cse2 .cse6) 0) (= |v_thread3_#t~mem16#1_180| .cse7) (<= 0 .cse8) (= (select .cse2 .cse9) 0) .cse10 (= (+ |v_thread3_#t~mem16#1_180| v_~mts3~0_159) v_~mts3~0_158) .cse11) (and .cse4 (= v_~mts3~0_158 0) (< .cse8 0) (= |v_thread3Thread1of1ForFork1_#t~mem16#1_13| |v_thread3_#t~mem16#1_180|) .cse10 .cse11))) (= 0 (select .cse12 .cse3)) (not (= (ite (or (<= |v_thread3Thread1of1ForFork1_plus_#res#1_17| 2147483647) .cse1) 1 0) 0)) .cse13 (= |v_#race_471| (store |v_#race_483| v_~A~0.base_222 (store (store (store (store .cse2 .cse3 0) .cse5 0) .cse6 0) .cse9 0))) (= (select .cse12 .cse5) 0) (<= v_~sum~0_93 2147483647) (= (select .cse12 .cse9) 0) (= v_~sum~0_93 |v_thread3Thread1of1ForFork1_plus_#res#1_17|) (not (= (ite (or .cse14 (<= 0 (+ |v_thread3Thread1of1ForFork1_plus_#res#1_17| 2147483648))) 1 0) 0)) (= (select .cse12 .cse6) 0) (= |v_thread3Thread1of1ForFork1_plus_#res#1_17| (+ v_~sum~0_94 .cse7)) (not (= (ite (or .cse14 .cse13) 1 0) 0)) (= |v_#race~A~0_267| 0))))))) InVars {~sum~0=v_~sum~0_94, #race=|v_#race_472|, thread3Thread1of1ForFork1_#t~mem16#1=|v_thread3Thread1of1ForFork1_#t~mem16#1_13|, ~A~0.base=v_~A~0.base_222, ~mts3~0=v_~mts3~0_159, ~A~0.offset=v_~A~0.offset_222, #memory_int=|v_#memory_int_133|, thread3Thread1of1ForFork1_~i~2#1=|v_thread3Thread1of1ForFork1_~i~2#1_15|} OutVars{~A~0.base=v_~A~0.base_222, thread3Thread1of1ForFork1_#t~nondet18#1=|v_thread3Thread1of1ForFork1_#t~nondet18#1_11|, thread3Thread1of1ForFork1_plus_#in~a#1=|v_thread3Thread1of1ForFork1_plus_#in~a#1_17|, thread3Thread1of1ForFork1_#t~mem19#1=|v_thread3Thread1of1ForFork1_#t~mem19#1_5|, thread3Thread1of1ForFork1_~i~2#1=|v_thread3Thread1of1ForFork1_~i~2#1_15|, thread3Thread1of1ForFork1_#t~nondet21#1=|v_thread3Thread1of1ForFork1_#t~nondet21#1_3|, ~sum~0=v_~sum~0_93, #race~mts3~0=|v_#race~mts3~0_243|, ~mts3~0=v_~mts3~0_158, thread3Thread1of1ForFork1_plus_#in~b#1=|v_thread3Thread1of1ForFork1_plus_#in~b#1_17|, #race~sum~0=|v_#race~sum~0_123|, thread3Thread1of1ForFork1_#t~ite17#1=|v_thread3Thread1of1ForFork1_#t~ite17#1_11|, #race=|v_#race_471|, thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_17|, thread3Thread1of1ForFork1_plus_#res#1=|v_thread3Thread1of1ForFork1_plus_#res#1_17|, thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1_17|, thread3Thread1of1ForFork1_plus_~a#1=|v_thread3Thread1of1ForFork1_plus_~a#1_17|, ~A~0.offset=v_~A~0.offset_222, thread3Thread1of1ForFork1_#t~ret20#1=|v_thread3Thread1of1ForFork1_#t~ret20#1_3|, thread3Thread1of1ForFork1_#t~ret15#1=|v_thread3Thread1of1ForFork1_#t~ret15#1_17|, #memory_int=|v_#memory_int_133|, thread3Thread1of1ForFork1_plus_~b#1=|v_thread3Thread1of1ForFork1_plus_~b#1_17|, thread3Thread1of1ForFork1_#t~mem14#1=|v_thread3Thread1of1ForFork1_#t~mem14#1_19|, #race~A~0=|v_#race~A~0_267|} AuxVars[|v_#race_483|, |v_#race~mts3~0_254|, |v_thread3_#t~mem16#1_180|, |v_#race~A~0_277|] AssignedVars[#race, thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, thread3Thread1of1ForFork1_#t~nondet18#1, thread3Thread1of1ForFork1_plus_#res#1, thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1, thread3Thread1of1ForFork1_plus_#in~a#1, thread3Thread1of1ForFork1_#t~mem19#1, thread3Thread1of1ForFork1_#t~nondet21#1, ~sum~0, #race~mts3~0, thread3Thread1of1ForFork1_#t~mem16#1, ~mts3~0, thread3Thread1of1ForFork1_plus_~a#1, thread3Thread1of1ForFork1_#t~ret20#1, thread3Thread1of1ForFork1_plus_#in~b#1, thread3Thread1of1ForFork1_#t~ret15#1, #race~sum~0, thread3Thread1of1ForFork1_plus_~b#1, thread3Thread1of1ForFork1_#t~ite17#1, thread3Thread1of1ForFork1_#t~mem14#1, #race~A~0][185], [418#(= |#race~M~0| 0), Black: 445#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 462#true, Black: 443#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 438#(<= ~N~0 0), Black: 439#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 470#true, 403#(= |#race~N~0| 0), 91#L59true, 426#(= |#race~A~0| 0), Black: 424#true, Black: 466#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), Black: 465#(<= (+ ~M~0 1) 0), 221#L86-4true, 207#L67true, 223#L48-3true]) [2023-11-21 21:02:10,235 INFO L294 olderBase$Statistics]: this new event has 186 ancestors and is cut-off event [2023-11-21 21:02:10,236 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-21 21:02:10,236 INFO L297 olderBase$Statistics]: existing Event has 137 ancestors and is cut-off event [2023-11-21 21:02:10,236 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-21 21:02:10,474 INFO L124 PetriNetUnfolderBase]: 408/2731 cut-off events. [2023-11-21 21:02:10,475 INFO L125 PetriNetUnfolderBase]: For 465/479 co-relation queries the response was YES. [2023-11-21 21:02:10,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3821 conditions, 2731 events. 408/2731 cut-off events. For 465/479 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 21744 event pairs, 71 based on Foata normal form. 0/2469 useless extension candidates. Maximal degree in co-relation 3772. Up to 281 conditions per place. [2023-11-21 21:02:10,561 INFO L140 encePairwiseOnDemand]: 393/400 looper letters, 36 selfloop transitions, 5 changer transitions 0/343 dead transitions. [2023-11-21 21:02:10,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 343 transitions, 877 flow [2023-11-21 21:02:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:10,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2128 transitions. [2023-11-21 21:02:10,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2023-11-21 21:02:10,571 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2128 transitions. [2023-11-21 21:02:10,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2128 transitions. [2023-11-21 21:02:10,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:10,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2128 transitions. [2023-11-21 21:02:10,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.6666666666667) internal successors, (2128), 6 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:10,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:10,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:10,590 INFO L175 Difference]: Start difference. First operand has 342 places, 333 transitions, 759 flow. Second operand 6 states and 2128 transitions. [2023-11-21 21:02:10,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 343 transitions, 877 flow [2023-11-21 21:02:10,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 343 transitions, 872 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:10,604 INFO L231 Difference]: Finished difference. Result has 343 places, 331 transitions, 760 flow [2023-11-21 21:02:10,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=343, PETRI_TRANSITIONS=331} [2023-11-21 21:02:10,606 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -19 predicate places. [2023-11-21 21:02:10,607 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 331 transitions, 760 flow [2023-11-21 21:02:10,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 349.6666666666667) internal successors, (2098), 6 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:10,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:10,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:10,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 21:02:10,609 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:10,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1702417987, now seen corresponding path program 1 times [2023-11-21 21:02:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:10,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603823587] [2023-11-21 21:02:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:02:11,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:11,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603823587] [2023-11-21 21:02:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603823587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:11,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:11,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457411484] [2023-11-21 21:02:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:11,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:11,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:11,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:11,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 400 [2023-11-21 21:02:11,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 331 transitions, 760 flow. Second operand has 6 states, 6 states have (on average 350.1666666666667) internal successors, (2101), 6 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:11,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:11,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 400 [2023-11-21 21:02:11,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:12,710 INFO L124 PetriNetUnfolderBase]: 251/2025 cut-off events. [2023-11-21 21:02:12,711 INFO L125 PetriNetUnfolderBase]: For 261/353 co-relation queries the response was YES. [2023-11-21 21:02:12,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2894 conditions, 2025 events. 251/2025 cut-off events. For 261/353 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14855 event pairs, 50 based on Foata normal form. 4/1880 useless extension candidates. Maximal degree in co-relation 2845. Up to 221 conditions per place. [2023-11-21 21:02:12,747 INFO L140 encePairwiseOnDemand]: 393/400 looper letters, 36 selfloop transitions, 5 changer transitions 0/341 dead transitions. [2023-11-21 21:02:12,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 341 transitions, 878 flow [2023-11-21 21:02:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:12,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:12,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2128 transitions. [2023-11-21 21:02:12,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2023-11-21 21:02:12,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2128 transitions. [2023-11-21 21:02:12,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2128 transitions. [2023-11-21 21:02:12,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:12,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2128 transitions. [2023-11-21 21:02:12,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.6666666666667) internal successors, (2128), 6 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:12,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:12,775 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:12,775 INFO L175 Difference]: Start difference. First operand has 343 places, 331 transitions, 760 flow. Second operand 6 states and 2128 transitions. [2023-11-21 21:02:12,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 341 transitions, 878 flow [2023-11-21 21:02:12,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 341 transitions, 868 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 21:02:12,785 INFO L231 Difference]: Finished difference. Result has 341 places, 329 transitions, 756 flow [2023-11-21 21:02:12,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=756, PETRI_PLACES=341, PETRI_TRANSITIONS=329} [2023-11-21 21:02:12,787 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -21 predicate places. [2023-11-21 21:02:12,788 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 329 transitions, 756 flow [2023-11-21 21:02:12,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 350.1666666666667) internal successors, (2101), 6 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:12,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:12,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:12,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 21:02:12,790 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:12,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 344327597, now seen corresponding path program 1 times [2023-11-21 21:02:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865967406] [2023-11-21 21:02:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:12,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:13,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:13,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865967406] [2023-11-21 21:02:13,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865967406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:13,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:13,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:13,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603300943] [2023-11-21 21:02:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:13,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:14,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 400 [2023-11-21 21:02:14,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 329 transitions, 756 flow. Second operand has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:14,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:14,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 400 [2023-11-21 21:02:14,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:14,640 INFO L124 PetriNetUnfolderBase]: 152/1537 cut-off events. [2023-11-21 21:02:14,641 INFO L125 PetriNetUnfolderBase]: For 159/221 co-relation queries the response was YES. [2023-11-21 21:02:14,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2090 conditions, 1537 events. 152/1537 cut-off events. For 159/221 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9778 event pairs, 7 based on Foata normal form. 8/1449 useless extension candidates. Maximal degree in co-relation 2040. Up to 147 conditions per place. [2023-11-21 21:02:14,665 INFO L140 encePairwiseOnDemand]: 395/400 looper letters, 23 selfloop transitions, 4 changer transitions 0/336 dead transitions. [2023-11-21 21:02:14,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 336 transitions, 844 flow [2023-11-21 21:02:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:14,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2023-11-21 21:02:14,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970833333333333 [2023-11-21 21:02:14,677 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2153 transitions. [2023-11-21 21:02:14,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2153 transitions. [2023-11-21 21:02:14,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:14,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2153 transitions. [2023-11-21 21:02:14,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.8333333333333) internal successors, (2153), 6 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:14,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:14,700 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:14,700 INFO L175 Difference]: Start difference. First operand has 341 places, 329 transitions, 756 flow. Second operand 6 states and 2153 transitions. [2023-11-21 21:02:14,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 336 transitions, 844 flow [2023-11-21 21:02:14,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 336 transitions, 834 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 21:02:14,713 INFO L231 Difference]: Finished difference. Result has 340 places, 328 transitions, 752 flow [2023-11-21 21:02:14,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=752, PETRI_PLACES=340, PETRI_TRANSITIONS=328} [2023-11-21 21:02:14,715 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -22 predicate places. [2023-11-21 21:02:14,715 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 328 transitions, 752 flow [2023-11-21 21:02:14,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.8333333333333) internal successors, (2141), 6 states have internal predecessors, (2141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:14,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:14,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:14,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 21:02:14,718 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:14,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:14,719 INFO L85 PathProgramCache]: Analyzing trace with hash -586084070, now seen corresponding path program 1 times [2023-11-21 21:02:14,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:14,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630685706] [2023-11-21 21:02:14,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:15,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630685706] [2023-11-21 21:02:15,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630685706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:15,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:15,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:02:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081761858] [2023-11-21 21:02:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:15,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:02:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:15,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:02:15,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:02:16,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 400 [2023-11-21 21:02:16,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 328 transitions, 752 flow. Second operand has 6 states, 6 states have (on average 357.0) internal successors, (2142), 6 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:16,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 400 [2023-11-21 21:02:16,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:16,774 INFO L124 PetriNetUnfolderBase]: 132/1508 cut-off events. [2023-11-21 21:02:16,774 INFO L125 PetriNetUnfolderBase]: For 143/175 co-relation queries the response was YES. [2023-11-21 21:02:16,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2009 conditions, 1508 events. 132/1508 cut-off events. For 143/175 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9474 event pairs, 11 based on Foata normal form. 16/1435 useless extension candidates. Maximal degree in co-relation 1959. Up to 127 conditions per place. [2023-11-21 21:02:16,800 INFO L140 encePairwiseOnDemand]: 395/400 looper letters, 23 selfloop transitions, 4 changer transitions 0/335 dead transitions. [2023-11-21 21:02:16,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 335 transitions, 840 flow [2023-11-21 21:02:16,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:02:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 21:02:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2153 transitions. [2023-11-21 21:02:16,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8970833333333333 [2023-11-21 21:02:16,810 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2153 transitions. [2023-11-21 21:02:16,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2153 transitions. [2023-11-21 21:02:16,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:16,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2153 transitions. [2023-11-21 21:02:16,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.8333333333333) internal successors, (2153), 6 states have internal predecessors, (2153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,830 INFO L175 Difference]: Start difference. First operand has 340 places, 328 transitions, 752 flow. Second operand 6 states and 2153 transitions. [2023-11-21 21:02:16,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 335 transitions, 840 flow [2023-11-21 21:02:16,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 335 transitions, 833 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:02:16,841 INFO L231 Difference]: Finished difference. Result has 340 places, 327 transitions, 751 flow [2023-11-21 21:02:16,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=751, PETRI_PLACES=340, PETRI_TRANSITIONS=327} [2023-11-21 21:02:16,842 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -22 predicate places. [2023-11-21 21:02:16,843 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 327 transitions, 751 flow [2023-11-21 21:02:16,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 357.0) internal successors, (2142), 6 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:16,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:16,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 21:02:16,848 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:16,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:16,848 INFO L85 PathProgramCache]: Analyzing trace with hash -575964360, now seen corresponding path program 1 times [2023-11-21 21:02:16,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:16,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257001289] [2023-11-21 21:02:16,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:16,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:16,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:16,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:16,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257001289] [2023-11-21 21:02:16,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257001289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:16,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:16,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:16,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045128670] [2023-11-21 21:02:16,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:16,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:16,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:16,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:16,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 400 [2023-11-21 21:02:16,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 327 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:16,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:16,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 400 [2023-11-21 21:02:16,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:17,353 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1357] L64-->L67: Formula: (let ((.cse15 (* |v_thread3Thread1of1ForFork1_~i~2#1_15| 4))) (let ((.cse3 (+ .cse15 v_~A~0.offset_222))) (let ((.cse7 (select (select |v_#memory_int_133| v_~A~0.base_222) .cse3))) (let ((.cse8 (+ v_~mts3~0_159 .cse7))) (let ((.cse0 (<= .cse8 2147483647)) (.cse1 (<= .cse7 0)) (.cse2 (select |v_#race_483| v_~A~0.base_222)) (.cse5 (+ .cse15 v_~A~0.offset_222 1)) (.cse9 (+ .cse15 v_~A~0.offset_222 3)) (.cse12 (select |v_#race_471| v_~A~0.base_222)) (.cse6 (+ .cse15 v_~A~0.offset_222 2)) (.cse14 (<= 0 .cse7)) (.cse13 (<= 0 (+ v_~mts3~0_159 2147483648 .cse7)))) (and (not (= (ite (or .cse0 .cse1) 1 0) 0)) .cse0 (<= 0 (+ v_~sum~0_93 2147483648)) (let ((.cse4 (= |v_#race~A~0_277| 0)) (.cse10 (= |v_#race~mts3~0_254| 0)) (.cse11 (= |v_#race_483| (store |v_#race_472| v_~A~0.base_222 (store (store (store (store (select |v_#race_472| v_~A~0.base_222) .cse3 0) .cse5 0) .cse6 0) .cse9 0))))) (or (and (= (select .cse2 .cse3) 0) .cse4 (= (select .cse2 .cse5) 0) (= (select .cse2 .cse6) 0) (= |v_thread3_#t~mem16#1_180| .cse7) (<= 0 .cse8) (= (select .cse2 .cse9) 0) .cse10 (= (+ |v_thread3_#t~mem16#1_180| v_~mts3~0_159) v_~mts3~0_158) .cse11) (and .cse4 (= v_~mts3~0_158 0) (< .cse8 0) (= |v_thread3Thread1of1ForFork1_#t~mem16#1_13| |v_thread3_#t~mem16#1_180|) .cse10 .cse11))) (= 0 (select .cse12 .cse3)) (not (= (ite (or (<= |v_thread3Thread1of1ForFork1_plus_#res#1_17| 2147483647) .cse1) 1 0) 0)) .cse13 (= |v_#race_471| (store |v_#race_483| v_~A~0.base_222 (store (store (store (store .cse2 .cse3 0) .cse5 0) .cse6 0) .cse9 0))) (= (select .cse12 .cse5) 0) (<= v_~sum~0_93 2147483647) (= (select .cse12 .cse9) 0) (= v_~sum~0_93 |v_thread3Thread1of1ForFork1_plus_#res#1_17|) (not (= (ite (or .cse14 (<= 0 (+ |v_thread3Thread1of1ForFork1_plus_#res#1_17| 2147483648))) 1 0) 0)) (= (select .cse12 .cse6) 0) (= |v_thread3Thread1of1ForFork1_plus_#res#1_17| (+ v_~sum~0_94 .cse7)) (not (= (ite (or .cse14 .cse13) 1 0) 0)) (= |v_#race~A~0_267| 0))))))) InVars {~sum~0=v_~sum~0_94, #race=|v_#race_472|, thread3Thread1of1ForFork1_#t~mem16#1=|v_thread3Thread1of1ForFork1_#t~mem16#1_13|, ~A~0.base=v_~A~0.base_222, ~mts3~0=v_~mts3~0_159, ~A~0.offset=v_~A~0.offset_222, #memory_int=|v_#memory_int_133|, thread3Thread1of1ForFork1_~i~2#1=|v_thread3Thread1of1ForFork1_~i~2#1_15|} OutVars{~A~0.base=v_~A~0.base_222, thread3Thread1of1ForFork1_#t~nondet18#1=|v_thread3Thread1of1ForFork1_#t~nondet18#1_11|, thread3Thread1of1ForFork1_plus_#in~a#1=|v_thread3Thread1of1ForFork1_plus_#in~a#1_17|, thread3Thread1of1ForFork1_#t~mem19#1=|v_thread3Thread1of1ForFork1_#t~mem19#1_5|, thread3Thread1of1ForFork1_~i~2#1=|v_thread3Thread1of1ForFork1_~i~2#1_15|, thread3Thread1of1ForFork1_#t~nondet21#1=|v_thread3Thread1of1ForFork1_#t~nondet21#1_3|, ~sum~0=v_~sum~0_93, #race~mts3~0=|v_#race~mts3~0_243|, ~mts3~0=v_~mts3~0_158, thread3Thread1of1ForFork1_plus_#in~b#1=|v_thread3Thread1of1ForFork1_plus_#in~b#1_17|, #race~sum~0=|v_#race~sum~0_123|, thread3Thread1of1ForFork1_#t~ite17#1=|v_thread3Thread1of1ForFork1_#t~ite17#1_11|, #race=|v_#race_471|, thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_17|, thread3Thread1of1ForFork1_plus_#res#1=|v_thread3Thread1of1ForFork1_plus_#res#1_17|, thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1=|v_thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1_17|, thread3Thread1of1ForFork1_plus_~a#1=|v_thread3Thread1of1ForFork1_plus_~a#1_17|, ~A~0.offset=v_~A~0.offset_222, thread3Thread1of1ForFork1_#t~ret20#1=|v_thread3Thread1of1ForFork1_#t~ret20#1_3|, thread3Thread1of1ForFork1_#t~ret15#1=|v_thread3Thread1of1ForFork1_#t~ret15#1_17|, #memory_int=|v_#memory_int_133|, thread3Thread1of1ForFork1_plus_~b#1=|v_thread3Thread1of1ForFork1_plus_~b#1_17|, thread3Thread1of1ForFork1_#t~mem14#1=|v_thread3Thread1of1ForFork1_#t~mem14#1_19|, #race~A~0=|v_#race~A~0_267|} AuxVars[|v_#race_483|, |v_#race~mts3~0_254|, |v_thread3_#t~mem16#1_180|, |v_#race~A~0_277|] AssignedVars[#race, thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, thread3Thread1of1ForFork1_#t~nondet18#1, thread3Thread1of1ForFork1_plus_#res#1, thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1, thread3Thread1of1ForFork1_plus_#in~a#1, thread3Thread1of1ForFork1_#t~mem19#1, thread3Thread1of1ForFork1_#t~nondet21#1, ~sum~0, #race~mts3~0, thread3Thread1of1ForFork1_#t~mem16#1, ~mts3~0, thread3Thread1of1ForFork1_plus_~a#1, thread3Thread1of1ForFork1_#t~ret20#1, thread3Thread1of1ForFork1_plus_#in~b#1, thread3Thread1of1ForFork1_#t~ret15#1, #race~sum~0, thread3Thread1of1ForFork1_plus_~b#1, thread3Thread1of1ForFork1_#t~ite17#1, thread3Thread1of1ForFork1_#t~mem14#1, #race~A~0][182], [418#(= |#race~M~0| 0), Black: 445#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~N~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 443#(and (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~3#1| 0) (<= ~N~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 438#(<= ~N~0 0), Black: 439#(and (= |thread1Thread1of1ForFork2_~i~0#1| 0) (<= ~N~0 0)), 403#(= |#race~N~0| 0), 491#true, 426#(= |#race~A~0| 0), Black: 424#true, 498#true, Black: 466#(and (<= (+ ~M~0 1) 0) (= |thread2Thread1of1ForFork0_~i~1#1| 0)), Black: 465#(<= (+ ~M~0 1) 0), 221#L86-4true, 207#L67true, 223#L48-3true, 293#L56-1true]) [2023-11-21 21:02:17,353 INFO L294 olderBase$Statistics]: this new event has 186 ancestors and is cut-off event [2023-11-21 21:02:17,353 INFO L297 olderBase$Statistics]: existing Event has 137 ancestors and is cut-off event [2023-11-21 21:02:17,353 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-21 21:02:17,353 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-21 21:02:17,486 INFO L124 PetriNetUnfolderBase]: 222/2267 cut-off events. [2023-11-21 21:02:17,486 INFO L125 PetriNetUnfolderBase]: For 205/213 co-relation queries the response was YES. [2023-11-21 21:02:17,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 2267 events. 222/2267 cut-off events. For 205/213 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 16875 event pairs, 58 based on Foata normal form. 0/2105 useless extension candidates. Maximal degree in co-relation 2873. Up to 252 conditions per place. [2023-11-21 21:02:17,519 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 17 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2023-11-21 21:02:17,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 329 transitions, 797 flow [2023-11-21 21:02:17,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:17,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1099 transitions. [2023-11-21 21:02:17,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9158333333333334 [2023-11-21 21:02:17,524 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1099 transitions. [2023-11-21 21:02:17,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1099 transitions. [2023-11-21 21:02:17,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:17,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1099 transitions. [2023-11-21 21:02:17,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.3333333333333) internal successors, (1099), 3 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:17,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:17,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:17,531 INFO L175 Difference]: Start difference. First operand has 340 places, 327 transitions, 751 flow. Second operand 3 states and 1099 transitions. [2023-11-21 21:02:17,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 329 transitions, 797 flow [2023-11-21 21:02:17,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 329 transitions, 790 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 21:02:17,539 INFO L231 Difference]: Finished difference. Result has 337 places, 326 transitions, 746 flow [2023-11-21 21:02:17,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=746, PETRI_PLACES=337, PETRI_TRANSITIONS=326} [2023-11-21 21:02:17,540 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -25 predicate places. [2023-11-21 21:02:17,540 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 326 transitions, 746 flow [2023-11-21 21:02:17,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:17,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:17,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:17,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 21:02:17,542 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:17,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash 611603833, now seen corresponding path program 1 times [2023-11-21 21:02:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:17,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405706614] [2023-11-21 21:02:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:02:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405706614] [2023-11-21 21:02:17,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405706614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:17,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:17,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482623037] [2023-11-21 21:02:17,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:17,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:17,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:17,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:17,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:17,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 400 [2023-11-21 21:02:17,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 326 transitions, 746 flow. Second operand has 3 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:17,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:17,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 400 [2023-11-21 21:02:17,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:18,056 INFO L124 PetriNetUnfolderBase]: 162/1848 cut-off events. [2023-11-21 21:02:18,056 INFO L125 PetriNetUnfolderBase]: For 134/154 co-relation queries the response was YES. [2023-11-21 21:02:18,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1848 events. 162/1848 cut-off events. For 134/154 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 13142 event pairs, 41 based on Foata normal form. 1/1747 useless extension candidates. Maximal degree in co-relation 2350. Up to 211 conditions per place. [2023-11-21 21:02:18,082 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 16 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2023-11-21 21:02:18,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 328 transitions, 790 flow [2023-11-21 21:02:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1101 transitions. [2023-11-21 21:02:18,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9175 [2023-11-21 21:02:18,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:18,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,094 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,095 INFO L175 Difference]: Start difference. First operand has 337 places, 326 transitions, 746 flow. Second operand 3 states and 1101 transitions. [2023-11-21 21:02:18,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 328 transitions, 790 flow [2023-11-21 21:02:18,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 328 transitions, 786 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:18,103 INFO L231 Difference]: Finished difference. Result has 336 places, 325 transitions, 744 flow [2023-11-21 21:02:18,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=744, PETRI_PLACES=336, PETRI_TRANSITIONS=325} [2023-11-21 21:02:18,104 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -26 predicate places. [2023-11-21 21:02:18,104 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 325 transitions, 744 flow [2023-11-21 21:02:18,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 362.6666666666667) internal successors, (1088), 3 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:18,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:18,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 21:02:18,105 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:18,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:18,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2076119488, now seen corresponding path program 1 times [2023-11-21 21:02:18,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:18,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298569906] [2023-11-21 21:02:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:18,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:18,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298569906] [2023-11-21 21:02:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298569906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:18,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:18,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:18,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615139959] [2023-11-21 21:02:18,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:18,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:18,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:18,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:18,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:18,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 400 [2023-11-21 21:02:18,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 325 transitions, 744 flow. Second operand has 3 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:18,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 400 [2023-11-21 21:02:18,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:18,520 INFO L124 PetriNetUnfolderBase]: 77/1409 cut-off events. [2023-11-21 21:02:18,520 INFO L125 PetriNetUnfolderBase]: For 95/107 co-relation queries the response was YES. [2023-11-21 21:02:18,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1737 conditions, 1409 events. 77/1409 cut-off events. For 95/107 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8702 event pairs, 11 based on Foata normal form. 8/1344 useless extension candidates. Maximal degree in co-relation 1689. Up to 99 conditions per place. [2023-11-21 21:02:18,538 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 9 selfloop transitions, 1 changer transitions 2/323 dead transitions. [2023-11-21 21:02:18,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 323 transitions, 762 flow [2023-11-21 21:02:18,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1101 transitions. [2023-11-21 21:02:18,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9175 [2023-11-21 21:02:18,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:18,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,550 INFO L175 Difference]: Start difference. First operand has 336 places, 325 transitions, 744 flow. Second operand 3 states and 1101 transitions. [2023-11-21 21:02:18,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 323 transitions, 762 flow [2023-11-21 21:02:18,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 323 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 21:02:18,558 INFO L231 Difference]: Finished difference. Result has 334 places, 321 transitions, 734 flow [2023-11-21 21:02:18,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=334, PETRI_TRANSITIONS=321} [2023-11-21 21:02:18,559 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -28 predicate places. [2023-11-21 21:02:18,559 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 321 transitions, 734 flow [2023-11-21 21:02:18,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:18,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:18,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 21:02:18,561 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-11-21 21:02:18,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:18,561 INFO L85 PathProgramCache]: Analyzing trace with hash -237471189, now seen corresponding path program 1 times [2023-11-21 21:02:18,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:18,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606099347] [2023-11-21 21:02:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:18,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:18,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:18,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606099347] [2023-11-21 21:02:18,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606099347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:18,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:18,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:18,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817630576] [2023-11-21 21:02:18,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:18,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:18,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:18,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:18,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 400 [2023-11-21 21:02:18,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 321 transitions, 734 flow. Second operand has 3 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:18,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 400 [2023-11-21 21:02:18,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:18,939 INFO L124 PetriNetUnfolderBase]: 77/1377 cut-off events. [2023-11-21 21:02:18,939 INFO L125 PetriNetUnfolderBase]: For 95/107 co-relation queries the response was YES. [2023-11-21 21:02:18,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 1377 events. 77/1377 cut-off events. For 95/107 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8427 event pairs, 11 based on Foata normal form. 8/1328 useless extension candidates. Maximal degree in co-relation 1653. Up to 99 conditions per place. [2023-11-21 21:02:18,954 INFO L140 encePairwiseOnDemand]: 397/400 looper letters, 0 selfloop transitions, 0 changer transitions 319/319 dead transitions. [2023-11-21 21:02:18,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 319 transitions, 752 flow [2023-11-21 21:02:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:18,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 21:02:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1101 transitions. [2023-11-21 21:02:18,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9175 [2023-11-21 21:02:18,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:18,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1101 transitions. [2023-11-21 21:02:18,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 367.0) internal successors, (1101), 3 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,970 INFO L175 Difference]: Start difference. First operand has 334 places, 321 transitions, 734 flow. Second operand 3 states and 1101 transitions. [2023-11-21 21:02:18,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 319 transitions, 752 flow [2023-11-21 21:02:18,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 319 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 21:02:18,976 INFO L231 Difference]: Finished difference. Result has 331 places, 0 transitions, 0 flow [2023-11-21 21:02:18,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=331, PETRI_TRANSITIONS=0} [2023-11-21 21:02:18,977 INFO L281 CegarLoopForPetriNet]: 362 programPoint places, -31 predicate places. [2023-11-21 21:02:18,977 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 0 transitions, 0 flow [2023-11-21 21:02:18,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 365.6666666666667) internal successors, (1097), 3 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:18,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (78 of 79 remaining) [2023-11-21 21:02:18,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2023-11-21 21:02:18,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2023-11-21 21:02:18,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2023-11-21 21:02:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2023-11-21 21:02:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2023-11-21 21:02:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2023-11-21 21:02:18,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2023-11-21 21:02:18,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2023-11-21 21:02:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2023-11-21 21:02:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2023-11-21 21:02:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2023-11-21 21:02:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2023-11-21 21:02:18,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2023-11-21 21:02:18,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2023-11-21 21:02:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2023-11-21 21:02:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2023-11-21 21:02:18,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2023-11-21 21:02:18,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2023-11-21 21:02:18,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2023-11-21 21:02:18,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2023-11-21 21:02:18,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2023-11-21 21:02:18,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2023-11-21 21:02:18,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2023-11-21 21:02:18,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 79 remaining) [2023-11-21 21:02:18,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2023-11-21 21:02:18,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2023-11-21 21:02:18,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2023-11-21 21:02:18,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2023-11-21 21:02:18,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2023-11-21 21:02:18,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2023-11-21 21:02:18,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2023-11-21 21:02:18,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2023-11-21 21:02:18,994 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2023-11-21 21:02:18,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2023-11-21 21:02:18,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2023-11-21 21:02:18,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2023-11-21 21:02:18,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err11ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2023-11-21 21:02:18,995 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err12ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2023-11-21 21:02:18,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 21:02:18,996 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:19,003 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 21:02:19,003 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:02:19,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:02:19 BasicIcfg [2023-11-21 21:02:19,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:02:19,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:02:19,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:02:19,011 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:02:19,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:50" (3/4) ... [2023-11-21 21:02:19,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 21:02:19,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 21:02:19,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 21:02:19,016 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-21 21:02:19,025 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-21 21:02:19,026 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 21:02:19,026 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 21:02:19,027 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 21:02:19,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:02:19,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 21:02:19,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:02:19,142 INFO L158 Benchmark]: Toolchain (without parser) took 30788.23ms. Allocated memory was 142.6MB in the beginning and 1.0GB in the end (delta: 874.5MB). Free memory was 95.8MB in the beginning and 442.8MB in the end (delta: -347.0MB). Peak memory consumption was 528.0MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,143 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:19,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.96ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 82.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.63ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 78.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,144 INFO L158 Benchmark]: Boogie Preprocessor took 100.91ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 75.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,144 INFO L158 Benchmark]: RCFGBuilder took 1938.84ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 75.5MB in the beginning and 94.6MB in the end (delta: -19.2MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,145 INFO L158 Benchmark]: TraceAbstraction took 28083.63ms. Allocated memory was 203.4MB in the beginning and 1.0GB in the end (delta: 813.7MB). Free memory was 94.6MB in the beginning and 449.1MB in the end (delta: -354.5MB). Peak memory consumption was 459.2MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,145 INFO L158 Benchmark]: Witness Printer took 131.13ms. Allocated memory is still 1.0GB. Free memory was 449.1MB in the beginning and 442.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:02:19,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 114.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.96ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 82.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.63ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 78.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.91ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 75.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1938.84ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 75.5MB in the beginning and 94.6MB in the end (delta: -19.2MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * TraceAbstraction took 28083.63ms. Allocated memory was 203.4MB in the beginning and 1.0GB in the end (delta: 813.7MB). Free memory was 94.6MB in the beginning and 449.1MB in the end (delta: -354.5MB). Peak memory consumption was 459.2MB. Max. memory is 16.1GB. * Witness Printer took 131.13ms. Allocated memory is still 1.0GB. Free memory was 449.1MB in the beginning and 442.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 564 locations, 79 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1635 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 857 mSDsluCounter, 393 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 608 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2919 IncrementalHoareTripleChecker+Invalid, 3527 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 608 mSolverCounterUnsat, 93 mSDtfsCounter, 2919 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred in iteration=13, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 1937 NumberOfCodeBlocks, 1937 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1917 ConstructedInterpolants, 0 QuantifiedInterpolants, 2751 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 47 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 21:02:19,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37e80258-d7ba-4ddd-b38a-2ef060ef74d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE