./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/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_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/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_3ea63255-0e48-47ea-a659-74bbac2faf5b/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 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:15:23,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:23,667 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:15:23,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:23,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:23,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:23,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:23,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:23,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:15:23,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:15:23,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:23,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:23,725 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:23,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:23,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:15:23,728 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:15:23,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:23,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:15:23,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:23,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:15:23,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:15:23,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:15:23,733 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:15:23,733 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:15:23,734 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:15:23,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:23,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:23,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:23,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:23,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:15:23,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:23,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:23,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:15:23,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:15:23,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:23,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:15:23,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:15:23,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:15:23,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:15:23,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:15:23,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:15:23,741 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_3ea63255-0e48-47ea-a659-74bbac2faf5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94001a9ab0492f7774a7e81f183179cf0060947b701e48f51b2989eec22ae051 [2023-11-21 22:15:24,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:24,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:24,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:24,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:24,126 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:24,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-lit/sssc12-pthread.i [2023-11-21 22:15:27,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:27,729 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:27,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/sv-benchmarks/c/pthread-lit/sssc12-pthread.i [2023-11-21 22:15:27,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/data/7a6aa47a2/71814e58fad9424299a8ca21fef9ebff/FLAG7121bb5e0 [2023-11-21 22:15:27,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/data/7a6aa47a2/71814e58fad9424299a8ca21fef9ebff [2023-11-21 22:15:27,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:27,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:27,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:27,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:27,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:27,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:27" (1/1) ... [2023-11-21 22:15:27,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e74e3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:27, skipping insertion in model container [2023-11-21 22:15:27,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:27" (1/1) ... [2023-11-21 22:15:27,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:28,266 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:15:28,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:28,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:28,449 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:15:28,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:28,537 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:15:28,545 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:28,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28 WrapperNode [2023-11-21 22:15:28,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:28,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:28,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:28,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:28,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,603 INFO L138 Inliner]: procedures = 274, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2023-11-21 22:15:28,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:28,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:28,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:28,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:28,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,659 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:28,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:28,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:28,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:28,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (1/1) ... [2023-11-21 22:15:28,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:28,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:28,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:28,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea63255-0e48-47ea-a659-74bbac2faf5b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-11-21 22:15:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-11-21 22:15:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:15:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:15:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:15:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:15:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:15:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:15:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:15:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:15:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:28,759 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 22:15:28,951 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:28,954 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:29,267 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:15:29,292 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:15:29,292 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:15:29,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:29 BoogieIcfgContainer [2023-11-21 22:15:29,294 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:15:29,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:15:29,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:15:29,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:15:29,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:27" (1/3) ... [2023-11-21 22:15:29,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1817fa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:29, skipping insertion in model container [2023-11-21 22:15:29,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:28" (2/3) ... [2023-11-21 22:15:29,302 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1817fa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:15:29, skipping insertion in model container [2023-11-21 22:15:29,302 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:15:29" (3/3) ... [2023-11-21 22:15:29,303 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12-pthread.i [2023-11-21 22:15:29,313 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:15:29,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:15:29,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-21 22:15:29,324 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:15:29,397 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:29,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 151 transitions, 306 flow [2023-11-21 22:15:29,506 INFO L124 PetriNetUnfolderBase]: 10/163 cut-off events. [2023-11-21 22:15:29,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:29,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 10/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 169 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 85. Up to 4 conditions per place. [2023-11-21 22:15:29,516 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 151 transitions, 306 flow [2023-11-21 22:15:29,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 151 transitions, 306 flow [2023-11-21 22:15:29,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:29,558 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;@4b045a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:29,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-11-21 22:15:29,570 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:29,570 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-21 22:15:29,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:29,571 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:29,571 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] [2023-11-21 22:15:29,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:29,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:29,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1347033221, now seen corresponding path program 1 times [2023-11-21 22:15:29,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:29,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888706120] [2023-11-21 22:15:29,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:29,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:29,832 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 22:15:29,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:29,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888706120] [2023-11-21 22:15:29,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888706120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:29,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:29,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821300709] [2023-11-21 22:15:29,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:29,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:29,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:29,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:29,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 151 [2023-11-21 22:15:29,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:15:29,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:29,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 151 [2023-11-21 22:15:29,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:30,036 INFO L124 PetriNetUnfolderBase]: 4/139 cut-off events. [2023-11-21 22:15:30,036 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:30,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 139 events. 4/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 12/132 useless extension candidates. Maximal degree in co-relation 77. Up to 11 conditions per place. [2023-11-21 22:15:30,038 INFO L140 encePairwiseOnDemand]: 142/151 looper letters, 10 selfloop transitions, 2 changer transitions 1/135 dead transitions. [2023-11-21 22:15:30,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 135 transitions, 298 flow [2023-11-21 22:15:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:30,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-11-21 22:15:30,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9028697571743929 [2023-11-21 22:15:30,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:30,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states 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 22:15:30,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,100 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 306 flow. Second operand 3 states and 409 transitions. [2023-11-21 22:15:30,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 135 transitions, 298 flow [2023-11-21 22:15:30,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 135 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:30,122 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 276 flow [2023-11-21 22:15:30,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2023-11-21 22:15:30,130 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -9 predicate places. [2023-11-21 22:15:30,131 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 276 flow [2023-11-21 22:15:30,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:15:30,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:30,132 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] [2023-11-21 22:15:30,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:15:30,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:30,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1832179261, now seen corresponding path program 1 times [2023-11-21 22:15:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:30,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530888981] [2023-11-21 22:15:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,293 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 22:15:30,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:30,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530888981] [2023-11-21 22:15:30,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530888981] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:30,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:30,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750047177] [2023-11-21 22:15:30,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:30,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:30,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:30,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:30,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:30,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 151 [2023-11-21 22:15:30,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 22:15:30,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:30,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 151 [2023-11-21 22:15:30,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:30,419 INFO L124 PetriNetUnfolderBase]: 4/137 cut-off events. [2023-11-21 22:15:30,419 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:30,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 137 events. 4/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 127. Up to 12 conditions per place. [2023-11-21 22:15:30,421 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 11 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2023-11-21 22:15:30,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 300 flow [2023-11-21 22:15:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-11-21 22:15:30,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8852097130242825 [2023-11-21 22:15:30,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-11-21 22:15:30,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-11-21 22:15:30,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:30,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-11-21 22:15:30,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states 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 22:15:30,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,434 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 276 flow. Second operand 3 states and 401 transitions. [2023-11-21 22:15:30,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 300 flow [2023-11-21 22:15:30,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 296 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:30,442 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 274 flow [2023-11-21 22:15:30,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2023-11-21 22:15:30,443 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -11 predicate places. [2023-11-21 22:15:30,444 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 274 flow [2023-11-21 22:15:30,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 22:15:30,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:30,445 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] [2023-11-21 22:15:30,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:15:30,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:30,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:30,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2125847697, now seen corresponding path program 1 times [2023-11-21 22:15:30,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:30,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323785905] [2023-11-21 22:15:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:30,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,546 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 22:15:30,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:30,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323785905] [2023-11-21 22:15:30,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323785905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:30,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:30,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:30,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75654664] [2023-11-21 22:15:30,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:30,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:30,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:30,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:30,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:30,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 151 [2023-11-21 22:15:30,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states 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 22:15:30,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:30,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 151 [2023-11-21 22:15:30,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:30,609 INFO L124 PetriNetUnfolderBase]: 4/132 cut-off events. [2023-11-21 22:15:30,609 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:15:30,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 132 events. 4/132 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 115. Up to 13 conditions per place. [2023-11-21 22:15:30,611 INFO L140 encePairwiseOnDemand]: 145/151 looper letters, 13 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2023-11-21 22:15:30,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 128 transitions, 292 flow [2023-11-21 22:15:30,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-11-21 22:15:30,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.869757174392936 [2023-11-21 22:15:30,613 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-11-21 22:15:30,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-11-21 22:15:30,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:30,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-11-21 22:15:30,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:15:30,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,618 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,618 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 274 flow. Second operand 3 states and 394 transitions. [2023-11-21 22:15:30,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 128 transitions, 292 flow [2023-11-21 22:15:30,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 128 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:30,622 INFO L231 Difference]: Finished difference. Result has 129 places, 128 transitions, 262 flow [2023-11-21 22:15:30,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=129, PETRI_TRANSITIONS=128} [2023-11-21 22:15:30,624 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -16 predicate places. [2023-11-21 22:15:30,624 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 262 flow [2023-11-21 22:15:30,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states 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 22:15:30,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:30,625 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] [2023-11-21 22:15:30,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:15:30,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:30,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1877174168, now seen corresponding path program 1 times [2023-11-21 22:15:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:30,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918779912] [2023-11-21 22:15:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,695 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 22:15:30,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:30,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918779912] [2023-11-21 22:15:30,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918779912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:30,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:30,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:30,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78315351] [2023-11-21 22:15:30,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:30,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:30,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:30,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:30,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:30,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 151 [2023-11-21 22:15:30,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states 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 22:15:30,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:30,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 151 [2023-11-21 22:15:30,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:30,740 INFO L124 PetriNetUnfolderBase]: 4/131 cut-off events. [2023-11-21 22:15:30,740 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:30,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 131 events. 4/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2023-11-21 22:15:30,741 INFO L140 encePairwiseOnDemand]: 148/151 looper letters, 7 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2023-11-21 22:15:30,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 278 flow [2023-11-21 22:15:30,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-11-21 22:15:30,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9028697571743929 [2023-11-21 22:15:30,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:30,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-11-21 22:15:30,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states 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 22:15:30,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 151.0) internal successors, (604), 4 states have internal predecessors, (604), 0 states have call successors, (0), 0 states 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 22:15:30,749 INFO L175 Difference]: Start difference. First operand has 129 places, 128 transitions, 262 flow. Second operand 3 states and 409 transitions. [2023-11-21 22:15:30,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 278 flow [2023-11-21 22:15:30,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:15:30,753 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 263 flow [2023-11-21 22:15:30,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2023-11-21 22:15:30,755 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -16 predicate places. [2023-11-21 22:15:30,755 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 263 flow [2023-11-21 22:15:30,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states 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 22:15:30,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:30,756 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:30,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:15:30,757 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:30,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash -37872595, now seen corresponding path program 1 times [2023-11-21 22:15:30,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045912106] [2023-11-21 22:15:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:30,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-21 22:15:30,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:30,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045912106] [2023-11-21 22:15:30,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045912106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:30,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:30,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454321293] [2023-11-21 22:15:30,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:15:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:15:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:15:30,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 151 [2023-11-21 22:15:30,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 22:15:30,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:30,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 151 [2023-11-21 22:15:30,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:31,058 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2023-11-21 22:15:31,077 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:15:31,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 134 events. 3/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 1/124 useless extension candidates. Maximal degree in co-relation 122. Up to 15 conditions per place. [2023-11-21 22:15:31,083 INFO L140 encePairwiseOnDemand]: 147/151 looper letters, 14 selfloop transitions, 0 changer transitions 4/130 dead transitions. [2023-11-21 22:15:31,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 130 transitions, 305 flow [2023-11-21 22:15:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:15:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:15:31,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 654 transitions. [2023-11-21 22:15:31,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.866225165562914 [2023-11-21 22:15:31,093 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 654 transitions. [2023-11-21 22:15:31,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 654 transitions. [2023-11-21 22:15:31,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:31,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 654 transitions. [2023-11-21 22:15:31,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.8) internal successors, (654), 5 states have internal predecessors, (654), 0 states have call successors, (0), 0 states 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 22:15:31,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states 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 22:15:31,100 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 151.0) internal successors, (906), 6 states have internal predecessors, (906), 0 states have call successors, (0), 0 states 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 22:15:31,100 INFO L175 Difference]: Start difference. First operand has 129 places, 127 transitions, 263 flow. Second operand 5 states and 654 transitions. [2023-11-21 22:15:31,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 130 transitions, 305 flow [2023-11-21 22:15:31,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 130 transitions, 301 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:31,104 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 263 flow [2023-11-21 22:15:31,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=263, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2023-11-21 22:15:31,108 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, -11 predicate places. [2023-11-21 22:15:31,109 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 263 flow [2023-11-21 22:15:31,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states 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 22:15:31,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:31,110 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:31,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:15:31,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-21 22:15:31,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:31,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1364596238, now seen corresponding path program 1 times [2023-11-21 22:15:31,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:31,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617889421] [2023-11-21 22:15:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:31,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:31,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:31,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:31,259 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:31,260 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2023-11-21 22:15:31,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2023-11-21 22:15:31,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2023-11-21 22:15:31,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2023-11-21 22:15:31,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2023-11-21 22:15:31,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2023-11-21 22:15:31,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2023-11-21 22:15:31,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2023-11-21 22:15:31,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2023-11-21 22:15:31,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2023-11-21 22:15:31,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2023-11-21 22:15:31,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2023-11-21 22:15:31,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2023-11-21 22:15:31,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2023-11-21 22:15:31,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2023-11-21 22:15:31,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2023-11-21 22:15:31,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2023-11-21 22:15:31,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2023-11-21 22:15:31,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2023-11-21 22:15:31,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2023-11-21 22:15:31,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2023-11-21 22:15:31,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2023-11-21 22:15:31,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2023-11-21 22:15:31,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:15:31,273 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-21 22:15:31,278 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:31,278 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:15:31,347 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:31,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 223 transitions, 456 flow [2023-11-21 22:15:31,420 INFO L124 PetriNetUnfolderBase]: 17/249 cut-off events. [2023-11-21 22:15:31,420 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:15:31,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 249 events. 17/249 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 567 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 164. Up to 6 conditions per place. [2023-11-21 22:15:31,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 223 transitions, 456 flow [2023-11-21 22:15:31,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 223 transitions, 456 flow [2023-11-21 22:15:31,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:31,436 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;@4b045a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:31,437 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-21 22:15:31,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:31,441 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-21 22:15:31,441 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:31,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:31,442 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] [2023-11-21 22:15:31,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:31,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:31,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1135280836, now seen corresponding path program 1 times [2023-11-21 22:15:31,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:31,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635169174] [2023-11-21 22:15:31,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:31,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:31,477 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 22:15:31,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635169174] [2023-11-21 22:15:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635169174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:31,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:31,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:31,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792485456] [2023-11-21 22:15:31,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:31,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:31,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:31,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:31,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 223 [2023-11-21 22:15:31,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 223 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states 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 22:15:31,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:31,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 223 [2023-11-21 22:15:31,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:31,729 INFO L124 PetriNetUnfolderBase]: 70/673 cut-off events. [2023-11-21 22:15:31,729 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-21 22:15:31,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 673 events. 70/673 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3824 event pairs, 42 based on Foata normal form. 99/657 useless extension candidates. Maximal degree in co-relation 616. Up to 102 conditions per place. [2023-11-21 22:15:31,738 INFO L140 encePairwiseOnDemand]: 211/223 looper letters, 17 selfloop transitions, 2 changer transitions 1/201 dead transitions. [2023-11-21 22:15:31,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 201 transitions, 450 flow [2023-11-21 22:15:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:31,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-11-21 22:15:31,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8998505231689088 [2023-11-21 22:15:31,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-11-21 22:15:31,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-11-21 22:15:31,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:31,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-11-21 22:15:31,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states 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 22:15:31,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:31,750 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:31,750 INFO L175 Difference]: Start difference. First operand has 213 places, 223 transitions, 456 flow. Second operand 3 states and 602 transitions. [2023-11-21 22:15:31,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 201 transitions, 450 flow [2023-11-21 22:15:31,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:31,791 INFO L231 Difference]: Finished difference. Result has 201 places, 200 transitions, 414 flow [2023-11-21 22:15:31,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=201, PETRI_TRANSITIONS=200} [2023-11-21 22:15:31,792 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -12 predicate places. [2023-11-21 22:15:31,792 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 200 transitions, 414 flow [2023-11-21 22:15:31,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states 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 22:15:31,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:31,793 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] [2023-11-21 22:15:31,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:15:31,793 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:31,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:31,794 INFO L85 PathProgramCache]: Analyzing trace with hash -284671907, now seen corresponding path program 1 times [2023-11-21 22:15:31,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:31,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439450245] [2023-11-21 22:15:31,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:31,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:31,846 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 22:15:31,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:31,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439450245] [2023-11-21 22:15:31,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439450245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:31,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:31,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:31,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374148336] [2023-11-21 22:15:31,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:31,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:31,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:31,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:31,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 223 [2023-11-21 22:15:31,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 200 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states 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 22:15:31,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:31,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 223 [2023-11-21 22:15:31,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:32,058 INFO L124 PetriNetUnfolderBase]: 42/529 cut-off events. [2023-11-21 22:15:32,059 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 22:15:32,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 529 events. 42/529 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2585 event pairs, 20 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 579. Up to 57 conditions per place. [2023-11-21 22:15:32,066 INFO L140 encePairwiseOnDemand]: 220/223 looper letters, 16 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2023-11-21 22:15:32,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 199 transitions, 448 flow [2023-11-21 22:15:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2023-11-21 22:15:32,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8893871449925261 [2023-11-21 22:15:32,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 595 transitions. [2023-11-21 22:15:32,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 595 transitions. [2023-11-21 22:15:32,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:32,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 595 transitions. [2023-11-21 22:15:32,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 22:15:32,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,075 INFO L175 Difference]: Start difference. First operand has 201 places, 200 transitions, 414 flow. Second operand 3 states and 595 transitions. [2023-11-21 22:15:32,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 199 transitions, 448 flow [2023-11-21 22:15:32,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 199 transitions, 444 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:32,082 INFO L231 Difference]: Finished difference. Result has 199 places, 199 transitions, 412 flow [2023-11-21 22:15:32,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=199, PETRI_TRANSITIONS=199} [2023-11-21 22:15:32,084 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -14 predicate places. [2023-11-21 22:15:32,084 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 199 transitions, 412 flow [2023-11-21 22:15:32,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states 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 22:15:32,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:32,085 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] [2023-11-21 22:15:32,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:15:32,088 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:32,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:32,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1225787791, now seen corresponding path program 1 times [2023-11-21 22:15:32,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:32,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722842148] [2023-11-21 22:15:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:32,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,124 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 22:15:32,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:32,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722842148] [2023-11-21 22:15:32,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722842148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:32,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:32,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:32,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63551340] [2023-11-21 22:15:32,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:32,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:32,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:32,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:32,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 223 [2023-11-21 22:15:32,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 199 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states 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 22:15:32,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:32,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 223 [2023-11-21 22:15:32,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:32,338 INFO L124 PetriNetUnfolderBase]: 82/811 cut-off events. [2023-11-21 22:15:32,339 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-21 22:15:32,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 811 events. 82/811 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4803 event pairs, 42 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 911. Up to 109 conditions per place. [2023-11-21 22:15:32,347 INFO L140 encePairwiseOnDemand]: 215/223 looper letters, 20 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2023-11-21 22:15:32,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 192 transitions, 440 flow [2023-11-21 22:15:32,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2023-11-21 22:15:32,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.866965620328849 [2023-11-21 22:15:32,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2023-11-21 22:15:32,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2023-11-21 22:15:32,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:32,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2023-11-21 22:15:32,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states 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 22:15:32,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,357 INFO L175 Difference]: Start difference. First operand has 199 places, 199 transitions, 412 flow. Second operand 3 states and 580 transitions. [2023-11-21 22:15:32,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 192 transitions, 440 flow [2023-11-21 22:15:32,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 192 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:32,362 INFO L231 Difference]: Finished difference. Result has 192 places, 192 transitions, 396 flow [2023-11-21 22:15:32,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=192, PETRI_TRANSITIONS=192} [2023-11-21 22:15:32,364 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -21 predicate places. [2023-11-21 22:15:32,365 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 192 transitions, 396 flow [2023-11-21 22:15:32,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states 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 22:15:32,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:32,365 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] [2023-11-21 22:15:32,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:15:32,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:32,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:32,367 INFO L85 PathProgramCache]: Analyzing trace with hash -39407288, now seen corresponding path program 1 times [2023-11-21 22:15:32,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:32,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576605815] [2023-11-21 22:15:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:15:32,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:32,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576605815] [2023-11-21 22:15:32,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576605815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:32,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:32,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:32,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337551496] [2023-11-21 22:15:32,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:32,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:32,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:32,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:32,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 223 [2023-11-21 22:15:32,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 192 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 22:15:32,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:32,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 223 [2023-11-21 22:15:32,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:32,548 INFO L124 PetriNetUnfolderBase]: 31/445 cut-off events. [2023-11-21 22:15:32,548 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:15:32,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 445 events. 31/445 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1855 event pairs, 12 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 462. Up to 36 conditions per place. [2023-11-21 22:15:32,553 INFO L140 encePairwiseOnDemand]: 220/223 looper letters, 11 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2023-11-21 22:15:32,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 191 transitions, 420 flow [2023-11-21 22:15:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:32,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:32,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 605 transitions. [2023-11-21 22:15:32,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9043348281016442 [2023-11-21 22:15:32,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 605 transitions. [2023-11-21 22:15:32,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 605 transitions. [2023-11-21 22:15:32,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:32,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 605 transitions. [2023-11-21 22:15:32,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states 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 22:15:32,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:32,562 INFO L175 Difference]: Start difference. First operand has 192 places, 192 transitions, 396 flow. Second operand 3 states and 605 transitions. [2023-11-21 22:15:32,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 191 transitions, 420 flow [2023-11-21 22:15:32,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 191 transitions, 419 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:15:32,567 INFO L231 Difference]: Finished difference. Result has 192 places, 191 transitions, 397 flow [2023-11-21 22:15:32,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=397, PETRI_PLACES=192, PETRI_TRANSITIONS=191} [2023-11-21 22:15:32,568 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -21 predicate places. [2023-11-21 22:15:32,568 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 191 transitions, 397 flow [2023-11-21 22:15:32,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 0 states have call successors, (0), 0 states 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 22:15:32,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:32,569 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 22:15:32,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:15:32,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:32,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 963078458, now seen corresponding path program 1 times [2023-11-21 22:15:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:32,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117957897] [2023-11-21 22:15:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:32,616 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 22:15:32,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117957897] [2023-11-21 22:15:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117957897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122808217] [2023-11-21 22:15:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:32,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 223 [2023-11-21 22:15:32,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 191 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:32,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:32,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 223 [2023-11-21 22:15:32,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:32,980 INFO L124 PetriNetUnfolderBase]: 195/1598 cut-off events. [2023-11-21 22:15:32,981 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2023-11-21 22:15:32,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1598 events. 195/1598 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12537 event pairs, 57 based on Foata normal form. 0/1387 useless extension candidates. Maximal degree in co-relation 1888. Up to 204 conditions per place. [2023-11-21 22:15:32,996 INFO L140 encePairwiseOnDemand]: 203/223 looper letters, 32 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2023-11-21 22:15:32,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 210 transitions, 532 flow [2023-11-21 22:15:32,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:32,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2023-11-21 22:15:32,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9073243647234679 [2023-11-21 22:15:33,000 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 607 transitions. [2023-11-21 22:15:33,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 607 transitions. [2023-11-21 22:15:33,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:33,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 607 transitions. [2023-11-21 22:15:33,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states 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 22:15:33,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:33,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 223.0) internal successors, (892), 4 states have internal predecessors, (892), 0 states have call successors, (0), 0 states 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 22:15:33,005 INFO L175 Difference]: Start difference. First operand has 192 places, 191 transitions, 397 flow. Second operand 3 states and 607 transitions. [2023-11-21 22:15:33,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 210 transitions, 532 flow [2023-11-21 22:15:33,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 210 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:33,012 INFO L231 Difference]: Finished difference. Result has 194 places, 205 transitions, 517 flow [2023-11-21 22:15:33,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=194, PETRI_TRANSITIONS=205} [2023-11-21 22:15:33,014 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -19 predicate places. [2023-11-21 22:15:33,015 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 205 transitions, 517 flow [2023-11-21 22:15:33,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:15:33,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:33,016 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:33,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:15:33,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:33,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:33,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1382079632, now seen corresponding path program 1 times [2023-11-21 22:15:33,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:33,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404506250] [2023-11-21 22:15:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:33,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 22:15:33,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:33,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404506250] [2023-11-21 22:15:33,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404506250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:33,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:33,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:33,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653973136] [2023-11-21 22:15:33,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:33,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:15:33,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:15:33,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:15:33,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 223 [2023-11-21 22:15:33,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 205 transitions, 517 flow. Second operand has 5 states, 5 states have (on average 194.4) internal successors, (972), 5 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 22:15:33,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:33,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 223 [2023-11-21 22:15:33,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:33,436 INFO L124 PetriNetUnfolderBase]: 130/1495 cut-off events. [2023-11-21 22:15:33,436 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-21 22:15:33,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1768 conditions, 1495 events. 130/1495 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11569 event pairs, 41 based on Foata normal form. 1/1300 useless extension candidates. Maximal degree in co-relation 1727. Up to 120 conditions per place. [2023-11-21 22:15:33,450 INFO L140 encePairwiseOnDemand]: 219/223 looper letters, 17 selfloop transitions, 0 changer transitions 4/208 dead transitions. [2023-11-21 22:15:33,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 208 transitions, 565 flow [2023-11-21 22:15:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:15:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:15:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 982 transitions. [2023-11-21 22:15:33,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8807174887892377 [2023-11-21 22:15:33,454 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 982 transitions. [2023-11-21 22:15:33,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 982 transitions. [2023-11-21 22:15:33,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:33,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 982 transitions. [2023-11-21 22:15:33,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 196.4) internal successors, (982), 5 states have internal predecessors, (982), 0 states have call successors, (0), 0 states 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 22:15:33,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 22:15:33,463 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 223.0) internal successors, (1338), 6 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states 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 22:15:33,463 INFO L175 Difference]: Start difference. First operand has 194 places, 205 transitions, 517 flow. Second operand 5 states and 982 transitions. [2023-11-21 22:15:33,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 208 transitions, 565 flow [2023-11-21 22:15:33,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 208 transitions, 537 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:33,474 INFO L231 Difference]: Finished difference. Result has 199 places, 204 transitions, 493 flow [2023-11-21 22:15:33,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=493, PETRI_PLACES=199, PETRI_TRANSITIONS=204} [2023-11-21 22:15:33,475 INFO L281 CegarLoopForPetriNet]: 213 programPoint places, -14 predicate places. [2023-11-21 22:15:33,475 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 204 transitions, 493 flow [2023-11-21 22:15:33,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 194.4) internal successors, (972), 5 states have internal predecessors, (972), 0 states have call successors, (0), 0 states 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 22:15:33,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:33,477 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:15:33,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:15:33,478 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-21 22:15:33,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:33,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1366276976, now seen corresponding path program 1 times [2023-11-21 22:15:33,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:33,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320439369] [2023-11-21 22:15:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:33,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:33,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:33,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:33,558 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:33,558 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2023-11-21 22:15:33,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-11-21 22:15:33,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-11-21 22:15:33,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-11-21 22:15:33,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-11-21 22:15:33,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-11-21 22:15:33,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-11-21 22:15:33,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-11-21 22:15:33,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-11-21 22:15:33,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-11-21 22:15:33,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-11-21 22:15:33,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-11-21 22:15:33,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-11-21 22:15:33,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-11-21 22:15:33,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-11-21 22:15:33,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-11-21 22:15:33,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-11-21 22:15:33,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-11-21 22:15:33,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-11-21 22:15:33,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2023-11-21 22:15:33,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2023-11-21 22:15:33,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-11-21 22:15:33,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-11-21 22:15:33,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-11-21 22:15:33,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-11-21 22:15:33,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-11-21 22:15:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-11-21 22:15:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-11-21 22:15:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-11-21 22:15:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-11-21 22:15:33,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-11-21 22:15:33,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:15:33,567 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:33,568 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:33,568 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:15:33,615 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:33,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 295 transitions, 608 flow [2023-11-21 22:15:33,679 INFO L124 PetriNetUnfolderBase]: 24/335 cut-off events. [2023-11-21 22:15:33,679 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:15:33,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 335 events. 24/335 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1031 event pairs, 0 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 253. Up to 8 conditions per place. [2023-11-21 22:15:33,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 295 transitions, 608 flow [2023-11-21 22:15:33,687 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 295 transitions, 608 flow [2023-11-21 22:15:33,688 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:33,689 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;@4b045a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:33,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-21 22:15:33,691 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:33,692 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-21 22:15:33,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:33,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:33,692 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] [2023-11-21 22:15:33,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:33,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash -955274677, now seen corresponding path program 1 times [2023-11-21 22:15:33,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:33,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777470778] [2023-11-21 22:15:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:33,715 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 22:15:33,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:33,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777470778] [2023-11-21 22:15:33,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777470778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:33,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:33,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534369296] [2023-11-21 22:15:33,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:33,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:33,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:33,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:33,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:33,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 295 [2023-11-21 22:15:33,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 295 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 22:15:33,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:33,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 295 [2023-11-21 22:15:33,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:34,718 INFO L124 PetriNetUnfolderBase]: 829/4693 cut-off events. [2023-11-21 22:15:34,719 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2023-11-21 22:15:34,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5951 conditions, 4693 events. 829/4693 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 48166 event pairs, 630 based on Foata normal form. 847/4741 useless extension candidates. Maximal degree in co-relation 4863. Up to 1033 conditions per place. [2023-11-21 22:15:34,792 INFO L140 encePairwiseOnDemand]: 280/295 looper letters, 24 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2023-11-21 22:15:34,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 267 transitions, 604 flow [2023-11-21 22:15:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:34,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:34,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-11-21 22:15:34,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8983050847457628 [2023-11-21 22:15:34,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-11-21 22:15:34,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-11-21 22:15:34,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:34,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-11-21 22:15:34,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 22:15:34,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:34,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:34,804 INFO L175 Difference]: Start difference. First operand has 281 places, 295 transitions, 608 flow. Second operand 3 states and 795 transitions. [2023-11-21 22:15:34,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 267 transitions, 604 flow [2023-11-21 22:15:34,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 267 transitions, 602 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:34,812 INFO L231 Difference]: Finished difference. Result has 266 places, 266 transitions, 552 flow [2023-11-21 22:15:34,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=266, PETRI_TRANSITIONS=266} [2023-11-21 22:15:34,814 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -15 predicate places. [2023-11-21 22:15:34,814 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 266 transitions, 552 flow [2023-11-21 22:15:34,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 0 states have call successors, (0), 0 states 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 22:15:34,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:34,815 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] [2023-11-21 22:15:34,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:15:34,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:34,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1017377149, now seen corresponding path program 1 times [2023-11-21 22:15:34,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:34,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873097010] [2023-11-21 22:15:34,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:34,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:34,842 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 22:15:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873097010] [2023-11-21 22:15:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873097010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:34,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:34,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:34,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097601008] [2023-11-21 22:15:34,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:34,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:34,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:34,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:34,898 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 295 [2023-11-21 22:15:34,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 266 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 22:15:34,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:34,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 295 [2023-11-21 22:15:34,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:35,510 INFO L124 PetriNetUnfolderBase]: 335/2601 cut-off events. [2023-11-21 22:15:35,510 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2023-11-21 22:15:35,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3084 conditions, 2601 events. 335/2601 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 23517 event pairs, 220 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 3051. Up to 382 conditions per place. [2023-11-21 22:15:35,555 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 21 selfloop transitions, 2 changer transitions 0/265 dead transitions. [2023-11-21 22:15:35,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 265 transitions, 596 flow [2023-11-21 22:15:35,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 789 transitions. [2023-11-21 22:15:35,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8915254237288136 [2023-11-21 22:15:35,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 789 transitions. [2023-11-21 22:15:35,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 789 transitions. [2023-11-21 22:15:35,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:35,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 789 transitions. [2023-11-21 22:15:35,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 0 states have call successors, (0), 0 states 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 22:15:35,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:35,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:35,569 INFO L175 Difference]: Start difference. First operand has 266 places, 266 transitions, 552 flow. Second operand 3 states and 789 transitions. [2023-11-21 22:15:35,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 265 transitions, 596 flow [2023-11-21 22:15:35,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 265 transitions, 592 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:35,577 INFO L231 Difference]: Finished difference. Result has 264 places, 265 transitions, 550 flow [2023-11-21 22:15:35,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=264, PETRI_TRANSITIONS=265} [2023-11-21 22:15:35,579 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -17 predicate places. [2023-11-21 22:15:35,579 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 265 transitions, 550 flow [2023-11-21 22:15:35,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states 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 22:15:35,580 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:35,580 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] [2023-11-21 22:15:35,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:15:35,581 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:35,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:35,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2140711249, now seen corresponding path program 1 times [2023-11-21 22:15:35,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:35,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562683168] [2023-11-21 22:15:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:35,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:35,607 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 22:15:35,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:35,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562683168] [2023-11-21 22:15:35,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562683168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:35,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:35,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:35,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789943043] [2023-11-21 22:15:35,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:35,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:35,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:35,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:35,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:35,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 295 [2023-11-21 22:15:35,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 265 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 22:15:35,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:35,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 295 [2023-11-21 22:15:35,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:36,973 INFO L124 PetriNetUnfolderBase]: 985/6371 cut-off events. [2023-11-21 22:15:36,973 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-11-21 22:15:37,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 6371 events. 985/6371 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 69450 event pairs, 630 based on Foata normal form. 0/5359 useless extension candidates. Maximal degree in co-relation 7629. Up to 1120 conditions per place. [2023-11-21 22:15:37,057 INFO L140 encePairwiseOnDemand]: 285/295 looper letters, 27 selfloop transitions, 1 changer transitions 0/256 dead transitions. [2023-11-21 22:15:37,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 256 transitions, 588 flow [2023-11-21 22:15:37,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2023-11-21 22:15:37,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8655367231638418 [2023-11-21 22:15:37,061 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2023-11-21 22:15:37,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2023-11-21 22:15:37,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:37,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2023-11-21 22:15:37,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states 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 22:15:37,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:37,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:37,069 INFO L175 Difference]: Start difference. First operand has 264 places, 265 transitions, 550 flow. Second operand 3 states and 766 transitions. [2023-11-21 22:15:37,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 256 transitions, 588 flow [2023-11-21 22:15:37,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 256 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:37,075 INFO L231 Difference]: Finished difference. Result has 255 places, 256 transitions, 530 flow [2023-11-21 22:15:37,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=255, PETRI_TRANSITIONS=256} [2023-11-21 22:15:37,079 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -26 predicate places. [2023-11-21 22:15:37,079 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 256 transitions, 530 flow [2023-11-21 22:15:37,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states 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 22:15:37,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:37,080 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] [2023-11-21 22:15:37,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:15:37,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:37,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:37,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1082043176, now seen corresponding path program 1 times [2023-11-21 22:15:37,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:37,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227307289] [2023-11-21 22:15:37,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:37,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:37,130 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 22:15:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:37,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227307289] [2023-11-21 22:15:37,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227307289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:37,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:37,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80676896] [2023-11-21 22:15:37,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:37,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:37,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:37,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:37,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:37,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 295 [2023-11-21 22:15:37,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 256 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states 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 22:15:37,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:37,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 295 [2023-11-21 22:15:37,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:37,519 INFO L124 PetriNetUnfolderBase]: 190/1771 cut-off events. [2023-11-21 22:15:37,520 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-21 22:15:37,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 1771 events. 190/1771 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13694 event pairs, 108 based on Foata normal form. 0/1490 useless extension candidates. Maximal degree in co-relation 1996. Up to 196 conditions per place. [2023-11-21 22:15:37,539 INFO L140 encePairwiseOnDemand]: 292/295 looper letters, 15 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2023-11-21 22:15:37,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 255 transitions, 562 flow [2023-11-21 22:15:37,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:37,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2023-11-21 22:15:37,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9050847457627119 [2023-11-21 22:15:37,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 801 transitions. [2023-11-21 22:15:37,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 801 transitions. [2023-11-21 22:15:37,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:37,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 801 transitions. [2023-11-21 22:15:37,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states 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 22:15:37,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:37,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:37,550 INFO L175 Difference]: Start difference. First operand has 255 places, 256 transitions, 530 flow. Second operand 3 states and 801 transitions. [2023-11-21 22:15:37,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 255 transitions, 562 flow [2023-11-21 22:15:37,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 255 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:15:37,557 INFO L231 Difference]: Finished difference. Result has 255 places, 255 transitions, 531 flow [2023-11-21 22:15:37,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=255, PETRI_TRANSITIONS=255} [2023-11-21 22:15:37,559 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -26 predicate places. [2023-11-21 22:15:37,559 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 255 transitions, 531 flow [2023-11-21 22:15:37,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states 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 22:15:37,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:37,560 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] [2023-11-21 22:15:37,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:15:37,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:37,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:37,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2112122092, now seen corresponding path program 1 times [2023-11-21 22:15:37,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:37,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822368827] [2023-11-21 22:15:37,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:37,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:37,623 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 22:15:37,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:37,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822368827] [2023-11-21 22:15:37,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822368827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:37,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:37,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:37,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390078046] [2023-11-21 22:15:37,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:37,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:37,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:37,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:37,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:37,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2023-11-21 22:15:37,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 255 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states 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 22:15:37,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:37,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2023-11-21 22:15:37,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:41,563 INFO L124 PetriNetUnfolderBase]: 4660/23986 cut-off events. [2023-11-21 22:15:41,564 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2023-11-21 22:15:41,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30445 conditions, 23986 events. 4660/23986 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 721. Compared 330586 event pairs, 1667 based on Foata normal form. 0/20563 useless extension candidates. Maximal degree in co-relation 30404. Up to 4132 conditions per place. [2023-11-21 22:15:41,792 INFO L140 encePairwiseOnDemand]: 265/295 looper letters, 48 selfloop transitions, 21 changer transitions 0/284 dead transitions. [2023-11-21 22:15:41,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 284 transitions, 737 flow [2023-11-21 22:15:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:41,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:41,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2023-11-21 22:15:41,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9016949152542373 [2023-11-21 22:15:41,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2023-11-21 22:15:41,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2023-11-21 22:15:41,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:41,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2023-11-21 22:15:41,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 22:15:41,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:41,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states 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 22:15:41,803 INFO L175 Difference]: Start difference. First operand has 255 places, 255 transitions, 531 flow. Second operand 3 states and 798 transitions. [2023-11-21 22:15:41,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 284 transitions, 737 flow [2023-11-21 22:15:41,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 284 transitions, 733 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:41,812 INFO L231 Difference]: Finished difference. Result has 257 places, 276 transitions, 713 flow [2023-11-21 22:15:41,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=713, PETRI_PLACES=257, PETRI_TRANSITIONS=276} [2023-11-21 22:15:41,814 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -24 predicate places. [2023-11-21 22:15:41,815 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 276 transitions, 713 flow [2023-11-21 22:15:41,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 0 states have call successors, (0), 0 states 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 22:15:41,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:41,816 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:41,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:15:41,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:41,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2108648492, now seen corresponding path program 1 times [2023-11-21 22:15:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:41,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400557902] [2023-11-21 22:15:41,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:41,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-21 22:15:41,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:41,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400557902] [2023-11-21 22:15:41,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400557902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:41,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:41,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:15:41,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821311321] [2023-11-21 22:15:41,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:41,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:15:41,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:41,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:15:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:15:41,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 295 [2023-11-21 22:15:41,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 276 transitions, 713 flow. Second operand has 5 states, 5 states have (on average 259.6) internal successors, (1298), 5 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 22:15:41,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:41,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 295 [2023-11-21 22:15:41,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:43,176 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([888] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread1of3ForFork0_#t~nondet6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread1of3ForFork0_#t~nondet6#1=|v_thrThread1of3ForFork0_#t~nondet6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~nondet6#1][87], [Black: 302#(= |#race~next~0| 0), 59#L1060-4true, thrThread1of3ForFork0InUse, 294#(= |#race~len~0| 0), thrThread2of3ForFork0InUse, 47#$Ultimate##0true, 300#true, 133#L1045-2true, 207#L1045-2true, thrThread3of3ForFork0InUse, 306#true]) [2023-11-21 22:15:43,176 INFO L294 olderBase$Statistics]: this new event has 122 ancestors and is cut-off event [2023-11-21 22:15:43,176 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-21 22:15:43,176 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-21 22:15:43,177 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-21 22:15:43,765 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([888] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread1of3ForFork0_#t~nondet6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread1of3ForFork0_#t~nondet6#1=|v_thrThread1of3ForFork0_#t~nondet6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~nondet6#1][87], [Black: 302#(= |#race~next~0| 0), 59#L1060-4true, thrThread1of3ForFork0InUse, 294#(= |#race~len~0| 0), 70#L1040-3true, thrThread2of3ForFork0InUse, 300#true, 133#L1045-2true, 207#L1045-2true, thrThread3of3ForFork0InUse, 306#true]) [2023-11-21 22:15:43,765 INFO L294 olderBase$Statistics]: this new event has 128 ancestors and is cut-off event [2023-11-21 22:15:43,765 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-21 22:15:43,765 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-21 22:15:43,766 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-21 22:15:44,259 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([959] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread3of3ForFork0_#t~nondet6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, thrThread3of3ForFork0_#t~nondet6#1=|v_thrThread3of3ForFork0_#t~nondet6#1_1|, ~#lock~0.base=|v_~#lock~0.base_11|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~nondet6#1][168], [Black: 300#true, 231#L1045-2true, 59#L1060-4true, thrThread1of3ForFork0InUse, 302#(= |#race~next~0| 0), 294#(= |#race~len~0| 0), thrThread2of3ForFork0InUse, 133#L1045-2true, thrThread3of3ForFork0InUse, 246#L1043-6true, 306#true]) [2023-11-21 22:15:44,260 INFO L294 olderBase$Statistics]: this new event has 132 ancestors and is cut-off event [2023-11-21 22:15:44,260 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:15:44,260 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-21 22:15:44,260 INFO L297 olderBase$Statistics]: existing Event has 132 ancestors and is cut-off event [2023-11-21 22:15:44,312 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1030] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread2of3ForFork0_#t~nondet6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread2of3ForFork0_#t~nondet6#1=|v_thrThread2of3ForFork0_#t~nondet6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread2of3ForFork0_#t~nondet6#1][120], [Black: 302#(= |#race~next~0| 0), 59#L1060-4true, 231#L1045-2true, thrThread1of3ForFork0InUse, 294#(= |#race~len~0| 0), thrThread2of3ForFork0InUse, 133#L1045-2true, 300#true, thrThread3of3ForFork0InUse, 207#L1045-2true, 306#true]) [2023-11-21 22:15:44,312 INFO L294 olderBase$Statistics]: this new event has 135 ancestors and is cut-off event [2023-11-21 22:15:44,312 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-21 22:15:44,312 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-21 22:15:44,312 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-21 22:15:44,316 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([888] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread1of3ForFork0_#t~nondet6#1_1| 0)) InVars {#pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread1of3ForFork0_#t~nondet6#1=|v_thrThread1of3ForFork0_#t~nondet6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread1of3ForFork0_#t~nondet6#1][87], [Black: 302#(= |#race~next~0| 0), 231#L1045-2true, 59#L1060-4true, thrThread1of3ForFork0InUse, 294#(= |#race~len~0| 0), thrThread2of3ForFork0InUse, 207#L1045-2true, 300#true, thrThread3of3ForFork0InUse, 133#L1045-2true, 306#true]) [2023-11-21 22:15:44,317 INFO L294 olderBase$Statistics]: this new event has 135 ancestors and is cut-off event [2023-11-21 22:15:44,317 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-21 22:15:44,317 INFO L297 olderBase$Statistics]: existing Event has 135 ancestors and is cut-off event [2023-11-21 22:15:44,317 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-21 22:15:44,849 INFO L124 PetriNetUnfolderBase]: 2518/17391 cut-off events. [2023-11-21 22:15:44,849 INFO L125 PetriNetUnfolderBase]: For 565/565 co-relation queries the response was YES. [2023-11-21 22:15:44,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21914 conditions, 17391 events. 2518/17391 cut-off events. For 565/565 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 237289 event pairs, 1056 based on Foata normal form. 1/15069 useless extension candidates. Maximal degree in co-relation 21872. Up to 2203 conditions per place. [2023-11-21 22:15:44,993 INFO L140 encePairwiseOnDemand]: 291/295 looper letters, 20 selfloop transitions, 0 changer transitions 4/279 dead transitions. [2023-11-21 22:15:44,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 279 transitions, 767 flow [2023-11-21 22:15:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:15:44,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:15:44,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1310 transitions. [2023-11-21 22:15:44,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.888135593220339 [2023-11-21 22:15:44,998 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1310 transitions. [2023-11-21 22:15:44,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1310 transitions. [2023-11-21 22:15:45,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:45,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1310 transitions. [2023-11-21 22:15:45,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states 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 22:15:45,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states 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 22:15:45,025 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states 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 22:15:45,026 INFO L175 Difference]: Start difference. First operand has 257 places, 276 transitions, 713 flow. Second operand 5 states and 1310 transitions. [2023-11-21 22:15:45,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 279 transitions, 767 flow [2023-11-21 22:15:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 279 transitions, 725 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:45,064 INFO L231 Difference]: Finished difference. Result has 262 places, 275 transitions, 675 flow [2023-11-21 22:15:45,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=675, PETRI_PLACES=262, PETRI_TRANSITIONS=275} [2023-11-21 22:15:45,065 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, -19 predicate places. [2023-11-21 22:15:45,065 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 275 transitions, 675 flow [2023-11-21 22:15:45,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 259.6) internal successors, (1298), 5 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states 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 22:15:45,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:45,067 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:45,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:15:45,067 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:15:45,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1844838163, now seen corresponding path program 1 times [2023-11-21 22:15:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259847682] [2023-11-21 22:15:45,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:45,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:45,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:15:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:15:45,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:15:45,162 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:15:45,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-11-21 22:15:45,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-11-21 22:15:45,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-11-21 22:15:45,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-11-21 22:15:45,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-11-21 22:15:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-11-21 22:15:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-11-21 22:15:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-11-21 22:15:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-11-21 22:15:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-11-21 22:15:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-11-21 22:15:45,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-11-21 22:15:45,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-11-21 22:15:45,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-11-21 22:15:45,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-11-21 22:15:45,169 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-11-21 22:15:45,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-11-21 22:15:45,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-11-21 22:15:45,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-11-21 22:15:45,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-11-21 22:15:45,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-11-21 22:15:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-11-21 22:15:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-11-21 22:15:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-11-21 22:15:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-11-21 22:15:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-11-21 22:15:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-11-21 22:15:45,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-11-21 22:15:45,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-11-21 22:15:45,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:15:45,173 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:45,174 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:15:45,174 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:15:45,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:15:45,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 349 places, 367 transitions, 762 flow [2023-11-21 22:15:45,317 INFO L124 PetriNetUnfolderBase]: 31/421 cut-off events. [2023-11-21 22:15:45,318 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:15:45,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 421 events. 31/421 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1522 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 343. Up to 10 conditions per place. [2023-11-21 22:15:45,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 349 places, 367 transitions, 762 flow [2023-11-21 22:15:45,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 349 places, 367 transitions, 762 flow [2023-11-21 22:15:45,330 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:15:45,330 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;@4b045a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:15:45,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2023-11-21 22:15:45,333 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:15:45,333 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-21 22:15:45,333 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:15:45,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:45,334 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] [2023-11-21 22:15:45,334 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2023-11-21 22:15:45,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -629666022, now seen corresponding path program 1 times [2023-11-21 22:15:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041866875] [2023-11-21 22:15:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:45,364 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 22:15:45,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:45,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041866875] [2023-11-21 22:15:45,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041866875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:45,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:45,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:45,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547561957] [2023-11-21 22:15:45,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:45,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:45,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:45,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 367 [2023-11-21 22:15:45,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 367 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states 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 22:15:45,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:45,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 367 [2023-11-21 22:15:45,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:52,277 INFO L124 PetriNetUnfolderBase]: 8203/34879 cut-off events. [2023-11-21 22:15:52,277 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2023-11-21 22:15:52,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46428 conditions, 34879 events. 8203/34879 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 484913 event pairs, 6804 based on Foata normal form. 7100/36380 useless extension candidates. Maximal degree in co-relation 38090. Up to 9608 conditions per place. [2023-11-21 22:15:52,764 INFO L140 encePairwiseOnDemand]: 349/367 looper letters, 31 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2023-11-21 22:15:52,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 333 transitions, 760 flow [2023-11-21 22:15:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 988 transitions. [2023-11-21 22:15:52,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8973660308810173 [2023-11-21 22:15:52,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 988 transitions. [2023-11-21 22:15:52,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 988 transitions. [2023-11-21 22:15:52,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:52,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 988 transitions. [2023-11-21 22:15:52,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 22:15:52,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:15:52,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:15:52,777 INFO L175 Difference]: Start difference. First operand has 349 places, 367 transitions, 762 flow. Second operand 3 states and 988 transitions. [2023-11-21 22:15:52,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 333 transitions, 760 flow [2023-11-21 22:15:52,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 333 transitions, 754 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-21 22:15:52,785 INFO L231 Difference]: Finished difference. Result has 331 places, 332 transitions, 690 flow [2023-11-21 22:15:52,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=690, PETRI_PLACES=331, PETRI_TRANSITIONS=332} [2023-11-21 22:15:52,787 INFO L281 CegarLoopForPetriNet]: 349 programPoint places, -18 predicate places. [2023-11-21 22:15:52,787 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 332 transitions, 690 flow [2023-11-21 22:15:52,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 0 states have call successors, (0), 0 states 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 22:15:52,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:52,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:15:52,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:15:52,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2023-11-21 22:15:52,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:52,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1443359133, now seen corresponding path program 1 times [2023-11-21 22:15:52,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:52,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310469956] [2023-11-21 22:15:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:52,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:52,819 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 22:15:52,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:52,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310469956] [2023-11-21 22:15:52,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310469956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:52,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:52,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160053869] [2023-11-21 22:15:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:52,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:52,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:52,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 367 [2023-11-21 22:15:52,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 332 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states 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 22:15:52,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:52,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 367 [2023-11-21 22:15:52,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:15:55,459 INFO L124 PetriNetUnfolderBase]: 2303/13473 cut-off events. [2023-11-21 22:15:55,459 INFO L125 PetriNetUnfolderBase]: For 472/472 co-relation queries the response was YES. [2023-11-21 22:15:55,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16457 conditions, 13473 events. 2303/13473 cut-off events. For 472/472 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 168738 event pairs, 1720 based on Foata normal form. 0/11140 useless extension candidates. Maximal degree in co-relation 16423. Up to 2507 conditions per place. [2023-11-21 22:15:55,699 INFO L140 encePairwiseOnDemand]: 364/367 looper letters, 26 selfloop transitions, 2 changer transitions 0/331 dead transitions. [2023-11-21 22:15:55,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 331 transitions, 744 flow [2023-11-21 22:15:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:15:55,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:15:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2023-11-21 22:15:55,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8928247048138056 [2023-11-21 22:15:55,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2023-11-21 22:15:55,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2023-11-21 22:15:55,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:15:55,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2023-11-21 22:15:55,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 states 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 22:15:55,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:15:55,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:15:55,712 INFO L175 Difference]: Start difference. First operand has 331 places, 332 transitions, 690 flow. Second operand 3 states and 983 transitions. [2023-11-21 22:15:55,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 331 transitions, 744 flow [2023-11-21 22:15:55,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 331 transitions, 740 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:15:55,721 INFO L231 Difference]: Finished difference. Result has 329 places, 331 transitions, 688 flow [2023-11-21 22:15:55,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=329, PETRI_TRANSITIONS=331} [2023-11-21 22:15:55,723 INFO L281 CegarLoopForPetriNet]: 349 programPoint places, -20 predicate places. [2023-11-21 22:15:55,723 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 331 transitions, 688 flow [2023-11-21 22:15:55,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 319.3333333333333) internal successors, (958), 3 states have internal predecessors, (958), 0 states have call successors, (0), 0 states 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 22:15:55,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:15:55,724 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] [2023-11-21 22:15:55,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:15:55,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2023-11-21 22:15:55,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:15:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash -659557071, now seen corresponding path program 1 times [2023-11-21 22:15:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:15:55,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896175059] [2023-11-21 22:15:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:15:55,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:15:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:15:55,750 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 22:15:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:15:55,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896175059] [2023-11-21 22:15:55,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896175059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:15:55,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:15:55,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:15:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509921651] [2023-11-21 22:15:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:15:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:15:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:15:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:15:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:15:55,798 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 367 [2023-11-21 22:15:55,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 331 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 22:15:55,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:15:55,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 367 [2023-11-21 22:15:55,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:16:03,945 INFO L124 PetriNetUnfolderBase]: 9683/48118 cut-off events. [2023-11-21 22:16:03,945 INFO L125 PetriNetUnfolderBase]: For 1205/1205 co-relation queries the response was YES. [2023-11-21 22:16:04,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59883 conditions, 48118 events. 9683/48118 cut-off events. For 1205/1205 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 715492 event pairs, 6804 based on Foata normal form. 0/40526 useless extension candidates. Maximal degree in co-relation 59841. Up to 10556 conditions per place. [2023-11-21 22:16:04,627 INFO L140 encePairwiseOnDemand]: 355/367 looper letters, 34 selfloop transitions, 1 changer transitions 0/320 dead transitions. [2023-11-21 22:16:04,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 320 transitions, 736 flow [2023-11-21 22:16:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:04,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:16:04,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2023-11-21 22:16:04,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8646684831970936 [2023-11-21 22:16:04,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 952 transitions. [2023-11-21 22:16:04,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 952 transitions. [2023-11-21 22:16:04,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:16:04,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 952 transitions. [2023-11-21 22:16:04,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.3333333333333) internal successors, (952), 3 states have internal predecessors, (952), 0 states have call successors, (0), 0 states 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 22:16:04,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:16:04,643 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:16:04,643 INFO L175 Difference]: Start difference. First operand has 329 places, 331 transitions, 688 flow. Second operand 3 states and 952 transitions. [2023-11-21 22:16:04,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 320 transitions, 736 flow [2023-11-21 22:16:04,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 320 transitions, 732 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:16:04,654 INFO L231 Difference]: Finished difference. Result has 318 places, 320 transitions, 664 flow [2023-11-21 22:16:04,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=318, PETRI_TRANSITIONS=320} [2023-11-21 22:16:04,655 INFO L281 CegarLoopForPetriNet]: 349 programPoint places, -31 predicate places. [2023-11-21 22:16:04,656 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 320 transitions, 664 flow [2023-11-21 22:16:04,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 22:16:04,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:16:04,657 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] [2023-11-21 22:16:04,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:16:04,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2023-11-21 22:16:04,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1487177224, now seen corresponding path program 1 times [2023-11-21 22:16:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078218808] [2023-11-21 22:16:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,702 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 22:16:04,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:04,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078218808] [2023-11-21 22:16:04,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078218808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:04,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:04,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:16:04,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505857625] [2023-11-21 22:16:04,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:04,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:04,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:04,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:04,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 367 [2023-11-21 22:16:04,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 320 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 22:16:04,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:16:04,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 367 [2023-11-21 22:16:04,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:16:06,293 INFO L124 PetriNetUnfolderBase]: 1021/7289 cut-off events. [2023-11-21 22:16:06,293 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2023-11-21 22:16:06,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8580 conditions, 7289 events. 1021/7289 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 79939 event pairs, 684 based on Foata normal form. 0/6128 useless extension candidates. Maximal degree in co-relation 8538. Up to 1028 conditions per place. [2023-11-21 22:16:06,422 INFO L140 encePairwiseOnDemand]: 364/367 looper letters, 19 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2023-11-21 22:16:06,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 319 transitions, 704 flow [2023-11-21 22:16:06,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:16:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:16:06,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 997 transitions. [2023-11-21 22:16:06,427 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9055404178019982 [2023-11-21 22:16:06,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 997 transitions. [2023-11-21 22:16:06,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 997 transitions. [2023-11-21 22:16:06,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:16:06,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 997 transitions. [2023-11-21 22:16:06,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 332.3333333333333) internal successors, (997), 3 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 22:16:06,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:16:06,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 367.0) internal successors, (1468), 4 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states 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 22:16:06,435 INFO L175 Difference]: Start difference. First operand has 318 places, 320 transitions, 664 flow. Second operand 3 states and 997 transitions. [2023-11-21 22:16:06,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 319 transitions, 704 flow [2023-11-21 22:16:06,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 703 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:16:06,444 INFO L231 Difference]: Finished difference. Result has 318 places, 319 transitions, 665 flow [2023-11-21 22:16:06,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=367, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=665, PETRI_PLACES=318, PETRI_TRANSITIONS=319} [2023-11-21 22:16:06,446 INFO L281 CegarLoopForPetriNet]: 349 programPoint places, -31 predicate places. [2023-11-21 22:16:06,447 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 319 transitions, 665 flow [2023-11-21 22:16:06,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.3333333333333) internal successors, (979), 3 states have internal predecessors, (979), 0 states have call successors, (0), 0 states 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 22:16:06,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:16:06,447 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 22:16:06,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:16:06,448 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2023-11-21 22:16:06,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash 477705829, now seen corresponding path program 1 times [2023-11-21 22:16:06,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:06,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093611928] [2023-11-21 22:16:06,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:06,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:06,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:06,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093611928] [2023-11-21 22:16:06,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093611928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:06,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:06,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:16:06,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736105924] [2023-11-21 22:16:06,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:06,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:16:06,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:06,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:16:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:16:06,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 367 [2023-11-21 22:16:06,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 319 transitions, 665 flow. Second operand has 3 states, 3 states have (on average 296.6666666666667) internal successors, (890), 3 states have internal predecessors, (890), 0 states have call successors, (0), 0 states 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 22:16:06,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:16:06,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 367 [2023-11-21 22:16:06,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand