./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/indexer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/indexer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya --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 f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:32:29,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:32:29,636 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 06:32:29,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:32:29,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:32:29,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:32:29,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:32:29,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:32:29,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:32:29,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:32:29,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:32:29,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:32:29,668 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:32:29,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:32:29,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:32:29,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:32:29,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:32:29,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:32:29,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:32:29,671 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:32:29,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:32:29,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:32:29,673 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 06:32:29,673 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:32:29,674 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:32:29,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:32:29,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:32:29,675 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:32:29,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:32:29,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:32:29,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:32:29,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:32:29,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:32:29,678 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:32:29,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:32:29,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:32:29,678 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_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24afaadf07ead7c7da85cf6020fd6a6a5b5585e439441b5111a2dea2e7cec4c [2023-11-29 06:32:29,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:32:29,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:32:29,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:32:29,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:32:29,953 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:32:29,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread/indexer.i [2023-11-29 06:32:32,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:32:32,949 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:32:32,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/sv-benchmarks/c/pthread/indexer.i [2023-11-29 06:32:32,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/data/e01d2b80a/e463ada633384a63b2713b0845590564/FLAGbc5b735db [2023-11-29 06:32:32,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/data/e01d2b80a/e463ada633384a63b2713b0845590564 [2023-11-29 06:32:32,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:32:32,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:32:32,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:32:32,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:32:32,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:32:32,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:32:32" (1/1) ... [2023-11-29 06:32:32,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3c6916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:32, skipping insertion in model container [2023-11-29 06:32:32,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:32:32" (1/1) ... [2023-11-29 06:32:33,058 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:32:33,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:32:33,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:32:33,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:32:33,636 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:32:33,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33 WrapperNode [2023-11-29 06:32:33,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:32:33,637 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:32:33,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:32:33,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:32:33,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,695 INFO L138 Inliner]: procedures = 270, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 148 [2023-11-29 06:32:33,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:32:33,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:32:33,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:32:33,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:32:33,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:32:33,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:32:33,739 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:32:33,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:32:33,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (1/1) ... [2023-11-29 06:32:33,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:32:33,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:33,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:32:33,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:32:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:32:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:32:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:32:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 06:32:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread_routine [2023-11-29 06:32:33,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_routine [2023-11-29 06:32:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 06:32:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:32:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:32:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 06:32:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:32:33,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:32:33,835 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:32:33,983 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:32:33,986 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:32:34,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:32:34,284 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:32:34,284 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 06:32:34,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:32:34 BoogieIcfgContainer [2023-11-29 06:32:34,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:32:34,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:32:34,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:32:34,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:32:34,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:32:32" (1/3) ... [2023-11-29 06:32:34,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aba5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:32:34, skipping insertion in model container [2023-11-29 06:32:34,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:32:33" (2/3) ... [2023-11-29 06:32:34,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23aba5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:32:34, skipping insertion in model container [2023-11-29 06:32:34,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:32:34" (3/3) ... [2023-11-29 06:32:34,296 INFO L112 eAbstractionObserver]: Analyzing ICFG indexer.i [2023-11-29 06:32:34,305 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:32:34,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:32:34,317 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-29 06:32:34,317 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:32:34,401 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 06:32:34,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 157 transitions, 321 flow [2023-11-29 06:32:34,519 INFO L124 PetriNetUnfolderBase]: 19/195 cut-off events. [2023-11-29 06:32:34,519 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 06:32:34,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 195 events. 19/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 352 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 122. Up to 4 conditions per place. [2023-11-29 06:32:34,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 157 transitions, 321 flow [2023-11-29 06:32:34,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 157 transitions, 321 flow [2023-11-29 06:32:34,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:32:34,552 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;@11b04d9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:32:34,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-29 06:32:34,565 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:32:34,565 INFO L124 PetriNetUnfolderBase]: 6/54 cut-off events. [2023-11-29 06:32:34,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:32:34,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:34,567 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] [2023-11-29 06:32:34,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:34,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:34,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1492750122, now seen corresponding path program 1 times [2023-11-29 06:32:34,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:34,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615958078] [2023-11-29 06:32:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:34,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:34,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615958078] [2023-11-29 06:32:34,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615958078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:34,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:34,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:32:34,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985140423] [2023-11-29 06:32:34,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:34,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:32:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:32:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:32:34,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 157 [2023-11-29 06:32:34,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 157 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:34,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:34,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 157 [2023-11-29 06:32:34,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:35,076 INFO L124 PetriNetUnfolderBase]: 18/285 cut-off events. [2023-11-29 06:32:35,077 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2023-11-29 06:32:35,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 285 events. 18/285 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 784 event pairs, 2 based on Foata normal form. 23/283 useless extension candidates. Maximal degree in co-relation 230. Up to 24 conditions per place. [2023-11-29 06:32:35,081 INFO L140 encePairwiseOnDemand]: 136/157 looper letters, 11 selfloop transitions, 6 changer transitions 13/149 dead transitions. [2023-11-29 06:32:35,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 149 transitions, 351 flow [2023-11-29 06:32:35,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:32:35,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:32:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2023-11-29 06:32:35,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.910828025477707 [2023-11-29 06:32:35,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2023-11-29 06:32:35,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2023-11-29 06:32:35,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:35,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2023-11-29 06:32:35,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,116 INFO L175 Difference]: Start difference. First operand has 145 places, 157 transitions, 321 flow. Second operand 3 states and 429 transitions. [2023-11-29 06:32:35,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 149 transitions, 351 flow [2023-11-29 06:32:35,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 149 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:32:35,126 INFO L231 Difference]: Finished difference. Result has 145 places, 134 transitions, 299 flow [2023-11-29 06:32:35,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=145, PETRI_TRANSITIONS=134} [2023-11-29 06:32:35,131 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2023-11-29 06:32:35,132 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 134 transitions, 299 flow [2023-11-29 06:32:35,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:35,133 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] [2023-11-29 06:32:35,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:32:35,133 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:35,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:35,134 INFO L85 PathProgramCache]: Analyzing trace with hash 487878786, now seen corresponding path program 1 times [2023-11-29 06:32:35,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:35,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441998325] [2023-11-29 06:32:35,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:35,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441998325] [2023-11-29 06:32:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441998325] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:35,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604295075] [2023-11-29 06:32:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:35,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:35,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:35,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:35,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:32:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:35,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:32:35,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:35,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:35,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604295075] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:35,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:32:35,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 06:32:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009817920] [2023-11-29 06:32:35,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:35,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:32:35,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:35,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:32:35,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:32:35,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 157 [2023-11-29 06:32:35,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 134 transitions, 299 flow. Second operand has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:35,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 157 [2023-11-29 06:32:35,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:35,812 INFO L124 PetriNetUnfolderBase]: 25/348 cut-off events. [2023-11-29 06:32:35,812 INFO L125 PetriNetUnfolderBase]: For 17/23 co-relation queries the response was YES. [2023-11-29 06:32:35,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 348 events. 25/348 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1142 event pairs, 3 based on Foata normal form. 4/317 useless extension candidates. Maximal degree in co-relation 325. Up to 21 conditions per place. [2023-11-29 06:32:35,816 INFO L140 encePairwiseOnDemand]: 145/157 looper letters, 19 selfloop transitions, 15 changer transitions 0/148 dead transitions. [2023-11-29 06:32:35,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 397 flow [2023-11-29 06:32:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:32:35,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-29 06:32:35,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1256 transitions. [2023-11-29 06:32:35,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8 [2023-11-29 06:32:35,822 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1256 transitions. [2023-11-29 06:32:35,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1256 transitions. [2023-11-29 06:32:35,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:35,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1256 transitions. [2023-11-29 06:32:35,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 125.6) internal successors, (1256), 10 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,834 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 157.0) internal successors, (1727), 11 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,835 INFO L175 Difference]: Start difference. First operand has 145 places, 134 transitions, 299 flow. Second operand 10 states and 1256 transitions. [2023-11-29 06:32:35,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 397 flow [2023-11-29 06:32:35,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 391 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:32:35,857 INFO L231 Difference]: Finished difference. Result has 145 places, 142 transitions, 369 flow [2023-11-29 06:32:35,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=369, PETRI_PLACES=145, PETRI_TRANSITIONS=142} [2023-11-29 06:32:35,859 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2023-11-29 06:32:35,859 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 142 transitions, 369 flow [2023-11-29 06:32:35,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.0) internal successors, (1240), 10 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:35,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:35,860 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:35,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:32:36,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 06:32:36,067 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:36,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1846364926, now seen corresponding path program 2 times [2023-11-29 06:32:36,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:36,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816838065] [2023-11-29 06:32:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:36,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:36,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816838065] [2023-11-29 06:32:36,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816838065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:36,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696263317] [2023-11-29 06:32:36,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:32:36,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:36,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:36,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:36,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:32:36,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:32:36,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:32:36,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:32:36,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:36,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 06:32:36,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 06:32:36,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:32:36,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 06:32:36,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:32:36,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 06:32:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 06:32:36,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:32:36,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696263317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:36,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:36,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2023-11-29 06:32:36,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097538721] [2023-11-29 06:32:36,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:36,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:32:36,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:36,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:32:36,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:32:36,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 157 [2023-11-29 06:32:36,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 142 transitions, 369 flow. Second operand has 7 states, 7 states have (on average 116.14285714285714) internal successors, (813), 7 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:36,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:36,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 157 [2023-11-29 06:32:36,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:37,115 INFO L124 PetriNetUnfolderBase]: 270/1192 cut-off events. [2023-11-29 06:32:37,115 INFO L125 PetriNetUnfolderBase]: For 18/21 co-relation queries the response was YES. [2023-11-29 06:32:37,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1192 events. 270/1192 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7135 event pairs, 86 based on Foata normal form. 0/1076 useless extension candidates. Maximal degree in co-relation 1688. Up to 409 conditions per place. [2023-11-29 06:32:37,124 INFO L140 encePairwiseOnDemand]: 137/157 looper letters, 36 selfloop transitions, 55 changer transitions 0/203 dead transitions. [2023-11-29 06:32:37,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 203 transitions, 673 flow [2023-11-29 06:32:37,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:32:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 06:32:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 897 transitions. [2023-11-29 06:32:37,130 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.816196542311192 [2023-11-29 06:32:37,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 897 transitions. [2023-11-29 06:32:37,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 897 transitions. [2023-11-29 06:32:37,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:37,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 897 transitions. [2023-11-29 06:32:37,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.14285714285714) internal successors, (897), 7 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:37,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:37,138 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:37,139 INFO L175 Difference]: Start difference. First operand has 145 places, 142 transitions, 369 flow. Second operand 7 states and 897 transitions. [2023-11-29 06:32:37,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 203 transitions, 673 flow [2023-11-29 06:32:37,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 203 transitions, 663 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 06:32:37,146 INFO L231 Difference]: Finished difference. Result has 155 places, 195 transitions, 720 flow [2023-11-29 06:32:37,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=720, PETRI_PLACES=155, PETRI_TRANSITIONS=195} [2023-11-29 06:32:37,147 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 10 predicate places. [2023-11-29 06:32:37,147 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 195 transitions, 720 flow [2023-11-29 06:32:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.14285714285714) internal successors, (813), 7 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:37,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:37,149 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:37,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:32:37,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:37,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_routineErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:37,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:37,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1155983884, now seen corresponding path program 1 times [2023-11-29 06:32:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:37,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788280232] [2023-11-29 06:32:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:37,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:37,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788280232] [2023-11-29 06:32:37,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788280232] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:37,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853908769] [2023-11-29 06:32:37,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:37,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:37,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:37,530 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:37,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:32:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:37,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:32:37,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:37,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853908769] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:37,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:32:37,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 06:32:37,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648906728] [2023-11-29 06:32:37,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:37,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 06:32:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:37,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 06:32:37,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:32:38,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 157 [2023-11-29 06:32:38,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 195 transitions, 720 flow. Second operand has 18 states, 18 states have (on average 124.05555555555556) internal successors, (2233), 18 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:38,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:38,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 157 [2023-11-29 06:32:38,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:38,473 INFO L124 PetriNetUnfolderBase]: 159/819 cut-off events. [2023-11-29 06:32:38,473 INFO L125 PetriNetUnfolderBase]: For 113/118 co-relation queries the response was YES. [2023-11-29 06:32:38,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 819 events. 159/819 cut-off events. For 113/118 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4241 event pairs, 16 based on Foata normal form. 6/762 useless extension candidates. Maximal degree in co-relation 1300. Up to 156 conditions per place. [2023-11-29 06:32:38,480 INFO L140 encePairwiseOnDemand]: 145/157 looper letters, 23 selfloop transitions, 27 changer transitions 0/217 dead transitions. [2023-11-29 06:32:38,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 217 transitions, 916 flow [2023-11-29 06:32:38,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 06:32:38,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 06:32:38,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2738 transitions. [2023-11-29 06:32:38,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7927041111754487 [2023-11-29 06:32:38,493 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2738 transitions. [2023-11-29 06:32:38,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2738 transitions. [2023-11-29 06:32:38,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:38,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2738 transitions. [2023-11-29 06:32:38,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 124.45454545454545) internal successors, (2738), 22 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:38,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 157.0) internal successors, (3611), 23 states have internal predecessors, (3611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:38,514 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 157.0) internal successors, (3611), 23 states have internal predecessors, (3611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:38,514 INFO L175 Difference]: Start difference. First operand has 155 places, 195 transitions, 720 flow. Second operand 22 states and 2738 transitions. [2023-11-29 06:32:38,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 217 transitions, 916 flow [2023-11-29 06:32:38,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 217 transitions, 915 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:32:38,525 INFO L231 Difference]: Finished difference. Result has 180 places, 208 transitions, 867 flow [2023-11-29 06:32:38,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=867, PETRI_PLACES=180, PETRI_TRANSITIONS=208} [2023-11-29 06:32:38,526 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 35 predicate places. [2023-11-29 06:32:38,527 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 208 transitions, 867 flow [2023-11-29 06:32:38,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 124.05555555555556) internal successors, (2233), 18 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:38,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:38,528 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:38,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:32:38,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:38,735 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_routineErr0ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:38,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1221160180, now seen corresponding path program 2 times [2023-11-29 06:32:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:38,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299019542] [2023-11-29 06:32:38,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:38,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:38,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:39,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299019542] [2023-11-29 06:32:39,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299019542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:39,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138217752] [2023-11-29 06:32:39,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:32:39,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:39,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:39,085 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:39,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:32:39,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 06:32:39,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:32:39,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:32:39,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:39,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 06:32:39,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 06:32:39,247 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:32:39,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-29 06:32:39,287 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:32:39,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-29 06:32:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 06:32:39,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:32:39,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138217752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:39,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:32:39,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 06:32:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201870732] [2023-11-29 06:32:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:39,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:32:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:39,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:32:39,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:32:39,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 157 [2023-11-29 06:32:39,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 208 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:39,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:39,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 157 [2023-11-29 06:32:39,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:39,807 INFO L124 PetriNetUnfolderBase]: 247/1305 cut-off events. [2023-11-29 06:32:39,807 INFO L125 PetriNetUnfolderBase]: For 325/340 co-relation queries the response was YES. [2023-11-29 06:32:39,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2458 conditions, 1305 events. 247/1305 cut-off events. For 325/340 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7804 event pairs, 15 based on Foata normal form. 1/1216 useless extension candidates. Maximal degree in co-relation 2300. Up to 289 conditions per place. [2023-11-29 06:32:39,818 INFO L140 encePairwiseOnDemand]: 146/157 looper letters, 52 selfloop transitions, 33 changer transitions 0/239 dead transitions. [2023-11-29 06:32:39,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 239 transitions, 1178 flow [2023-11-29 06:32:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:32:39,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:32:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 812 transitions. [2023-11-29 06:32:39,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.861995753715499 [2023-11-29 06:32:39,821 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 812 transitions. [2023-11-29 06:32:39,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 812 transitions. [2023-11-29 06:32:39,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:39,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 812 transitions. [2023-11-29 06:32:39,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:39,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:39,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:39,828 INFO L175 Difference]: Start difference. First operand has 180 places, 208 transitions, 867 flow. Second operand 6 states and 812 transitions. [2023-11-29 06:32:39,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 239 transitions, 1178 flow [2023-11-29 06:32:39,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 239 transitions, 1150 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 06:32:39,839 INFO L231 Difference]: Finished difference. Result has 184 places, 236 transitions, 1137 flow [2023-11-29 06:32:39,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1137, PETRI_PLACES=184, PETRI_TRANSITIONS=236} [2023-11-29 06:32:39,841 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 39 predicate places. [2023-11-29 06:32:39,841 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 236 transitions, 1137 flow [2023-11-29 06:32:39,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:39,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:39,842 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:39,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:32:40,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:40,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:40,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:40,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2040659688, now seen corresponding path program 1 times [2023-11-29 06:32:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:40,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260442870] [2023-11-29 06:32:40,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:40,155 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 06:32:40,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:40,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260442870] [2023-11-29 06:32:40,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260442870] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:40,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461440615] [2023-11-29 06:32:40,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:40,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:40,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:40,157 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:40,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:32:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:40,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:32:40,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:32:40,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:32:40,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461440615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:40,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:32:40,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 34 [2023-11-29 06:32:40,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543310620] [2023-11-29 06:32:40,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:40,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 06:32:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:40,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 06:32:40,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:32:41,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 157 [2023-11-29 06:32:41,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 236 transitions, 1137 flow. Second operand has 34 states, 34 states have (on average 122.47058823529412) internal successors, (4164), 34 states have internal predecessors, (4164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:41,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:41,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 157 [2023-11-29 06:32:41,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:42,093 INFO L124 PetriNetUnfolderBase]: 240/1533 cut-off events. [2023-11-29 06:32:42,093 INFO L125 PetriNetUnfolderBase]: For 670/686 co-relation queries the response was YES. [2023-11-29 06:32:42,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1533 events. 240/1533 cut-off events. For 670/686 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9641 event pairs, 15 based on Foata normal form. 15/1446 useless extension candidates. Maximal degree in co-relation 2506. Up to 246 conditions per place. [2023-11-29 06:32:42,105 INFO L140 encePairwiseOnDemand]: 146/157 looper letters, 31 selfloop transitions, 49 changer transitions 0/263 dead transitions. [2023-11-29 06:32:42,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 263 transitions, 1524 flow [2023-11-29 06:32:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 06:32:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2023-11-29 06:32:42,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 5729 transitions. [2023-11-29 06:32:42,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7763924651036725 [2023-11-29 06:32:42,123 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 5729 transitions. [2023-11-29 06:32:42,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 5729 transitions. [2023-11-29 06:32:42,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:42,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 5729 transitions. [2023-11-29 06:32:42,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 121.8936170212766) internal successors, (5729), 47 states have internal predecessors, (5729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:42,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 157.0) internal successors, (7536), 48 states have internal predecessors, (7536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:42,162 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 157.0) internal successors, (7536), 48 states have internal predecessors, (7536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:42,163 INFO L175 Difference]: Start difference. First operand has 184 places, 236 transitions, 1137 flow. Second operand 47 states and 5729 transitions. [2023-11-29 06:32:42,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 263 transitions, 1524 flow [2023-11-29 06:32:42,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 263 transitions, 1506 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-11-29 06:32:42,177 INFO L231 Difference]: Finished difference. Result has 225 places, 245 transitions, 1373 flow [2023-11-29 06:32:42,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=1373, PETRI_PLACES=225, PETRI_TRANSITIONS=245} [2023-11-29 06:32:42,179 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 80 predicate places. [2023-11-29 06:32:42,179 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 245 transitions, 1373 flow [2023-11-29 06:32:42,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 122.47058823529412) internal successors, (4164), 34 states have internal predecessors, (4164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:42,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:42,181 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:32:42,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:32:42,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:42,382 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:42,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:42,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2095617247, now seen corresponding path program 1 times [2023-11-29 06:32:42,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:42,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757560699] [2023-11-29 06:32:42,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:42,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:43,331 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:43,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:43,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757560699] [2023-11-29 06:32:43,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757560699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:43,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545043240] [2023-11-29 06:32:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:43,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:43,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:43,333 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:43,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:32:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:43,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 06:32:43,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:43,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:44,441 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:44,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545043240] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:44,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:32:44,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2023-11-29 06:32:44,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397609423] [2023-11-29 06:32:44,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:44,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-11-29 06:32:44,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-11-29 06:32:44,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2023-11-29 06:32:45,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 157 [2023-11-29 06:32:45,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 245 transitions, 1373 flow. Second operand has 66 states, 66 states have (on average 124.03030303030303) internal successors, (8186), 66 states have internal predecessors, (8186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:45,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:45,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 157 [2023-11-29 06:32:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:47,076 INFO L124 PetriNetUnfolderBase]: 226/1496 cut-off events. [2023-11-29 06:32:47,077 INFO L125 PetriNetUnfolderBase]: For 2595/2609 co-relation queries the response was YES. [2023-11-29 06:32:47,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3199 conditions, 1496 events. 226/1496 cut-off events. For 2595/2609 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8701 event pairs, 10 based on Foata normal form. 17/1419 useless extension candidates. Maximal degree in co-relation 2357. Up to 233 conditions per place. [2023-11-29 06:32:47,090 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 44 selfloop transitions, 96 changer transitions 0/325 dead transitions. [2023-11-29 06:32:47,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 325 transitions, 2449 flow [2023-11-29 06:32:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-11-29 06:32:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2023-11-29 06:32:47,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 11502 transitions. [2023-11-29 06:32:47,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.787754263406616 [2023-11-29 06:32:47,111 INFO L72 ComplementDD]: Start complementDD. Operand 93 states and 11502 transitions. [2023-11-29 06:32:47,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 11502 transitions. [2023-11-29 06:32:47,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:47,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 93 states and 11502 transitions. [2023-11-29 06:32:47,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 94 states, 93 states have (on average 123.6774193548387) internal successors, (11502), 93 states have internal predecessors, (11502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:47,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 94 states, 94 states have (on average 157.0) internal successors, (14758), 94 states have internal predecessors, (14758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:47,168 INFO L81 ComplementDD]: Finished complementDD. Result has 94 states, 94 states have (on average 157.0) internal successors, (14758), 94 states have internal predecessors, (14758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:47,168 INFO L175 Difference]: Start difference. First operand has 225 places, 245 transitions, 1373 flow. Second operand 93 states and 11502 transitions. [2023-11-29 06:32:47,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 325 transitions, 2449 flow [2023-11-29 06:32:47,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 325 transitions, 2354 flow, removed 26 selfloop flow, removed 20 redundant places. [2023-11-29 06:32:47,190 INFO L231 Difference]: Finished difference. Result has 314 places, 294 transitions, 2009 flow [2023-11-29 06:32:47,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=1310, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=93, PETRI_FLOW=2009, PETRI_PLACES=314, PETRI_TRANSITIONS=294} [2023-11-29 06:32:47,192 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 169 predicate places. [2023-11-29 06:32:47,192 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 294 transitions, 2009 flow [2023-11-29 06:32:47,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 124.03030303030303) internal successors, (8186), 66 states have internal predecessors, (8186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:47,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:47,194 INFO L208 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:32:47,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:32:47,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:47,395 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:32:47,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -977451231, now seen corresponding path program 2 times [2023-11-29 06:32:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:47,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902072221] [2023-11-29 06:32:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:49,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2369 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:49,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:49,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902072221] [2023-11-29 06:32:49,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902072221] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:32:49,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832084743] [2023-11-29 06:32:49,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:32:49,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:32:49,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:32:49,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:32:49,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:32:50,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:32:50,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:32:50,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 06:32:50,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:32:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2369 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:50,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:32:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2369 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:32:53,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832084743] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:32:53,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:32:53,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2023-11-29 06:32:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272325559] [2023-11-29 06:32:53,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:32:53,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2023-11-29 06:32:53,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:53,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2023-11-29 06:32:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2023-11-29 06:32:54,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 157 [2023-11-29 06:32:54,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 294 transitions, 2009 flow. Second operand has 130 states, 130 states have (on average 124.01538461538462) internal successors, (16122), 130 states have internal predecessors, (16122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:54,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:54,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 157 [2023-11-29 06:32:54,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:33:00,750 INFO L124 PetriNetUnfolderBase]: 226/1656 cut-off events. [2023-11-29 06:33:00,750 INFO L125 PetriNetUnfolderBase]: For 17460/17474 co-relation queries the response was YES. [2023-11-29 06:33:00,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4314 conditions, 1656 events. 226/1656 cut-off events. For 17460/17474 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8706 event pairs, 10 based on Foata normal form. 33/1595 useless extension candidates. Maximal degree in co-relation 2362. Up to 233 conditions per place. [2023-11-29 06:33:00,761 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 76 selfloop transitions, 192 changer transitions 0/453 dead transitions. [2023-11-29 06:33:00,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 502 places, 453 transitions, 4573 flow [2023-11-29 06:33:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2023-11-29 06:33:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2023-11-29 06:33:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 23358 transitions. [2023-11-29 06:33:00,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7871802648872712 [2023-11-29 06:33:00,786 INFO L72 ComplementDD]: Start complementDD. Operand 189 states and 23358 transitions. [2023-11-29 06:33:00,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 23358 transitions. [2023-11-29 06:33:00,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:33:00,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 189 states and 23358 transitions. [2023-11-29 06:33:00,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 190 states, 189 states have (on average 123.58730158730158) internal successors, (23358), 189 states have internal predecessors, (23358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:33:00,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 190 states, 190 states have (on average 157.0) internal successors, (29830), 190 states have internal predecessors, (29830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:33:00,852 INFO L81 ComplementDD]: Finished complementDD. Result has 190 states, 190 states have (on average 157.0) internal successors, (29830), 190 states have internal predecessors, (29830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:33:00,852 INFO L175 Difference]: Start difference. First operand has 314 places, 294 transitions, 2009 flow. Second operand 189 states and 23358 transitions. [2023-11-29 06:33:00,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 502 places, 453 transitions, 4573 flow [2023-11-29 06:33:00,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 453 transitions, 4452 flow, removed 17 selfloop flow, removed 42 redundant places. [2023-11-29 06:33:00,899 INFO L231 Difference]: Finished difference. Result has 493 places, 391 transitions, 3519 flow [2023-11-29 06:33:00,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=1888, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=189, PETRI_FLOW=3519, PETRI_PLACES=493, PETRI_TRANSITIONS=391} [2023-11-29 06:33:00,900 INFO L281 CegarLoopForPetriNet]: 145 programPoint places, 348 predicate places. [2023-11-29 06:33:00,900 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 391 transitions, 3519 flow [2023-11-29 06:33:00,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 124.01538461538462) internal successors, (16122), 130 states have internal predecessors, (16122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:33:00,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:33:00,903 INFO L208 CegarLoopForPetriNet]: trace histogram [63, 63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:33:00,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:33:01,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:01,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_routineErr0ASSERT_VIOLATIONDATA_RACE, thread_routineErr1ASSERT_VIOLATIONDATA_RACE, thread_routineErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:33:01,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:33:01,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1455488801, now seen corresponding path program 3 times [2023-11-29 06:33:01,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:33:01,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292577058] [2023-11-29 06:33:01,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:33:01,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:33:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:33:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 9841 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 06:33:08,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:33:08,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292577058] [2023-11-29 06:33:08,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292577058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:33:08,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335920951] [2023-11-29 06:33:08,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:33:08,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:33:08,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:33:08,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:33:08,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8cea78-918e-4c52-8dd8-bf2dc2eb1600/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process