./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:25,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:25,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:18:25,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:25,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:25,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:25,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:25,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:25,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:25,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:25,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:25,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:25,499 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:25,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:25,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:25,501 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:18:25,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:25,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:18:25,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:25,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:25,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:25,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:25,505 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:18:25,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:18:25,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:18:25,507 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:25,507 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:25,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:25,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:25,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:25,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:25,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:25,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:25,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:25,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:25,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:18:25,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:25,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:25,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:25,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:25,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:25,514 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_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad14026eba5b252f16e1e7c5b06294a08c72d8fedf1d2cbda596d8ea988add3 [2023-11-21 22:18:25,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:25,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:25,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:25,822 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:25,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:25,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-21 22:18:29,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:29,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:29,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/sv-benchmarks/c/pthread-lit/qw2004_variant.i [2023-11-21 22:18:29,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/data/0f540fa66/428c1b77e8834d5d804ae7288e8fb1eb/FLAGcb839d98d [2023-11-21 22:18:29,578 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/data/0f540fa66/428c1b77e8834d5d804ae7288e8fb1eb [2023-11-21 22:18:29,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:29,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:29,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:29,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:29,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:29,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:29" (1/1) ... [2023-11-21 22:18:29,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:29, skipping insertion in model container [2023-11-21 22:18:29,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:29" (1/1) ... [2023-11-21 22:18:29,661 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:30,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:30,021 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:30,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:30,096 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:18:30,097 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:18:30,105 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:30,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30 WrapperNode [2023-11-21 22:18:30,105 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:30,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:30,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:30,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:30,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,128 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,156 INFO L138 Inliner]: procedures = 174, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 157 [2023-11-21 22:18:30,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:30,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:30,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:30,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:30,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:30,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:30,226 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:30,226 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:30,227 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (1/1) ... [2023-11-21 22:18:30,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:30,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:30,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:30,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2023-11-21 22:18:30,315 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2023-11-21 22:18:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:18:30,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:18:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:18:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:18:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpAdd [2023-11-21 22:18:30,316 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpAdd [2023-11-21 22:18:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:18:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:18:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:30,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:30,321 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:18:30,514 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:30,518 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:30,833 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:31,011 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:31,012 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:18:31,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:31 BoogieIcfgContainer [2023-11-21 22:18:31,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:31,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:18:31,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:18:31,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:18:31,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:29" (1/3) ... [2023-11-21 22:18:31,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6981333e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:31, skipping insertion in model container [2023-11-21 22:18:31,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:30" (2/3) ... [2023-11-21 22:18:31,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6981333e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:31, skipping insertion in model container [2023-11-21 22:18:31,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:31" (3/3) ... [2023-11-21 22:18:31,025 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004_variant.i [2023-11-21 22:18:31,033 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:18:31,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:18:31,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-21 22:18:31,045 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:18:31,114 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:18:31,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 142 transitions, 292 flow [2023-11-21 22:18:31,296 INFO L124 PetriNetUnfolderBase]: 7/153 cut-off events. [2023-11-21 22:18:31,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:18:31,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 153 events. 7/153 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 279 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-11-21 22:18:31,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 142 transitions, 292 flow [2023-11-21 22:18:31,313 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 141 transitions, 289 flow [2023-11-21 22:18:31,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:31,331 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;@2658d3b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:31,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-21 22:18:31,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:18:31,338 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-21 22:18:31,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:18:31,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:31,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:31,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:31,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:31,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1960888255, now seen corresponding path program 1 times [2023-11-21 22:18:31,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:31,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308918416] [2023-11-21 22:18:31,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:31,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:31,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:31,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308918416] [2023-11-21 22:18:31,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308918416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:31,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:31,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242059687] [2023-11-21 22:18:31,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:31,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:31,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:31,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:31,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:31,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 142 [2023-11-21 22:18:31,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:31,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:31,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 142 [2023-11-21 22:18:31,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:31,921 INFO L124 PetriNetUnfolderBase]: 21/324 cut-off events. [2023-11-21 22:18:31,921 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:18:31,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 324 events. 21/324 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1323 event pairs, 15 based on Foata normal form. 24/304 useless extension candidates. Maximal degree in co-relation 321. Up to 39 conditions per place. [2023-11-21 22:18:31,931 INFO L140 encePairwiseOnDemand]: 124/142 looper letters, 10 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-11-21 22:18:31,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 122 transitions, 275 flow [2023-11-21 22:18:31,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-11-21 22:18:31,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8615023474178404 [2023-11-21 22:18:31,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-11-21 22:18:31,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-11-21 22:18:31,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:31,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-11-21 22:18:31,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:31,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:31,980 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:31,982 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 289 flow. Second operand 3 states and 367 transitions. [2023-11-21 22:18:31,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 122 transitions, 275 flow [2023-11-21 22:18:31,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 122 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:18:31,996 INFO L231 Difference]: Finished difference. Result has 127 places, 122 transitions, 254 flow [2023-11-21 22:18:31,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=127, PETRI_TRANSITIONS=122} [2023-11-21 22:18:32,003 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -14 predicate places. [2023-11-21 22:18:32,003 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 122 transitions, 254 flow [2023-11-21 22:18:32,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:32,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:32,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:18:32,007 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:32,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2014302925, now seen corresponding path program 1 times [2023-11-21 22:18:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342960396] [2023-11-21 22:18:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:32,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:32,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:32,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342960396] [2023-11-21 22:18:32,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342960396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:32,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:32,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609514785] [2023-11-21 22:18:32,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:32,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:32,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:32,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:32,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:32,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 142 [2023-11-21 22:18:32,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 122 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:32,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 142 [2023-11-21 22:18:32,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:32,222 INFO L124 PetriNetUnfolderBase]: 35/393 cut-off events. [2023-11-21 22:18:32,222 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:18:32,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 393 events. 35/393 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1871 event pairs, 27 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 443. Up to 61 conditions per place. [2023-11-21 22:18:32,225 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 11 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2023-11-21 22:18:32,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 278 flow [2023-11-21 22:18:32,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:32,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:32,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-21 22:18:32,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8215962441314554 [2023-11-21 22:18:32,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:32,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,233 INFO L175 Difference]: Start difference. First operand has 127 places, 122 transitions, 254 flow. Second operand 3 states and 350 transitions. [2023-11-21 22:18:32,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 278 flow [2023-11-21 22:18:32,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 121 transitions, 274 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:32,238 INFO L231 Difference]: Finished difference. Result has 126 places, 121 transitions, 252 flow [2023-11-21 22:18:32,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=126, PETRI_TRANSITIONS=121} [2023-11-21 22:18:32,239 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -15 predicate places. [2023-11-21 22:18:32,240 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 121 transitions, 252 flow [2023-11-21 22:18:32,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:32,243 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] [2023-11-21 22:18:32,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:18:32,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:32,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:32,246 INFO L85 PathProgramCache]: Analyzing trace with hash 585284650, now seen corresponding path program 1 times [2023-11-21 22:18:32,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:32,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016224694] [2023-11-21 22:18:32,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:32,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:32,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:32,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016224694] [2023-11-21 22:18:32,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016224694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:32,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:32,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:32,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426007831] [2023-11-21 22:18:32,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:32,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:32,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:32,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:32,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:32,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 142 [2023-11-21 22:18:32,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 121 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:32,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 142 [2023-11-21 22:18:32,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:32,460 INFO L124 PetriNetUnfolderBase]: 35/362 cut-off events. [2023-11-21 22:18:32,460 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:18:32,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 362 events. 35/362 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1641 event pairs, 27 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 407. Up to 61 conditions per place. [2023-11-21 22:18:32,463 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 11 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-11-21 22:18:32,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 276 flow [2023-11-21 22:18:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:32,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2023-11-21 22:18:32,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8215962441314554 [2023-11-21 22:18:32,467 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:32,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 350 transitions. [2023-11-21 22:18:32,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,472 INFO L175 Difference]: Start difference. First operand has 126 places, 121 transitions, 252 flow. Second operand 3 states and 350 transitions. [2023-11-21 22:18:32,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 276 flow [2023-11-21 22:18:32,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:32,478 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 250 flow [2023-11-21 22:18:32,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2023-11-21 22:18:32,480 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -16 predicate places. [2023-11-21 22:18:32,481 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 250 flow [2023-11-21 22:18:32,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:32,482 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] [2023-11-21 22:18:32,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:18:32,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:32,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:32,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2008223221, now seen corresponding path program 1 times [2023-11-21 22:18:32,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:32,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363978593] [2023-11-21 22:18:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:32,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:32,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363978593] [2023-11-21 22:18:32,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363978593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:32,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:32,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:32,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644306804] [2023-11-21 22:18:32,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:32,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:32,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:32,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:32,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 142 [2023-11-21 22:18:32,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:32,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 142 [2023-11-21 22:18:32,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:32,655 INFO L124 PetriNetUnfolderBase]: 42/388 cut-off events. [2023-11-21 22:18:32,656 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:18:32,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 388 events. 42/388 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1855 event pairs, 34 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 441. Up to 74 conditions per place. [2023-11-21 22:18:32,659 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 12 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2023-11-21 22:18:32,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 119 transitions, 276 flow [2023-11-21 22:18:32,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2023-11-21 22:18:32,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8169014084507042 [2023-11-21 22:18:32,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 348 transitions. [2023-11-21 22:18:32,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 348 transitions. [2023-11-21 22:18:32,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:32,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 348 transitions. [2023-11-21 22:18:32,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,666 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 250 flow. Second operand 3 states and 348 transitions. [2023-11-21 22:18:32,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 119 transitions, 276 flow [2023-11-21 22:18:32,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 119 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:32,670 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 248 flow [2023-11-21 22:18:32,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2023-11-21 22:18:32,671 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -17 predicate places. [2023-11-21 22:18:32,672 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 248 flow [2023-11-21 22:18:32,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:32,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:32,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:18:32,673 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:32,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1706788547, now seen corresponding path program 1 times [2023-11-21 22:18:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223859634] [2023-11-21 22:18:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:32,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:32,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223859634] [2023-11-21 22:18:32,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223859634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:32,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:32,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:32,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972868387] [2023-11-21 22:18:32,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:32,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:32,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:32,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:32,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:32,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 142 [2023-11-21 22:18:32,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:32,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 142 [2023-11-21 22:18:32,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:32,856 INFO L124 PetriNetUnfolderBase]: 29/311 cut-off events. [2023-11-21 22:18:32,856 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-21 22:18:32,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 311 events. 29/311 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1267 event pairs, 13 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 353. Up to 47 conditions per place. [2023-11-21 22:18:32,859 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 13 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2023-11-21 22:18:32,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 125 transitions, 299 flow [2023-11-21 22:18:32,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:32,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:32,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2023-11-21 22:18:32,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8474178403755869 [2023-11-21 22:18:32,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2023-11-21 22:18:32,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2023-11-21 22:18:32,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:32,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2023-11-21 22:18:32,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,868 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 248 flow. Second operand 3 states and 361 transitions. [2023-11-21 22:18:32,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 125 transitions, 299 flow [2023-11-21 22:18:32,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 125 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:32,872 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 282 flow [2023-11-21 22:18:32,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2023-11-21 22:18:32,876 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -15 predicate places. [2023-11-21 22:18:32,876 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 282 flow [2023-11-21 22:18:32,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:32,877 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:32,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:18:32,877 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:32,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:32,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1894799423, now seen corresponding path program 1 times [2023-11-21 22:18:32,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:32,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206100143] [2023-11-21 22:18:32,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:32,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:32,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206100143] [2023-11-21 22:18:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206100143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:32,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:32,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:18:32,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294824816] [2023-11-21 22:18:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:32,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:32,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:32,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:32,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-21 22:18:32,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:32,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:32,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-21 22:18:32,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:33,057 INFO L124 PetriNetUnfolderBase]: 23/296 cut-off events. [2023-11-21 22:18:33,057 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-21 22:18:33,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 296 events. 23/296 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1201 event pairs, 6 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 348. Up to 27 conditions per place. [2023-11-21 22:18:33,060 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 14 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2023-11-21 22:18:33,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 333 flow [2023-11-21 22:18:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:33,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2023-11-21 22:18:33,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544600938967136 [2023-11-21 22:18:33,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:33,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,066 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 282 flow. Second operand 3 states and 364 transitions. [2023-11-21 22:18:33,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 333 flow [2023-11-21 22:18:33,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 128 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:33,072 INFO L231 Difference]: Finished difference. Result has 128 places, 125 transitions, 294 flow [2023-11-21 22:18:33,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2023-11-21 22:18:33,075 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -13 predicate places. [2023-11-21 22:18:33,075 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 294 flow [2023-11-21 22:18:33,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:33,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:33,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:18:33,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:33,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:33,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2108784707, now seen corresponding path program 1 times [2023-11-21 22:18:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:33,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515106022] [2023-11-21 22:18:33,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:33,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:18:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:18:33,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515106022] [2023-11-21 22:18:33,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515106022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:18:33,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:18:33,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:18:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037927416] [2023-11-21 22:18:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:18:33,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:18:33,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:18:33,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:18:33,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:18:33,194 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 142 [2023-11-21 22:18:33,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:18:33,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 142 [2023-11-21 22:18:33,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:18:33,269 INFO L124 PetriNetUnfolderBase]: 15/334 cut-off events. [2023-11-21 22:18:33,269 INFO L125 PetriNetUnfolderBase]: For 25/27 co-relation queries the response was YES. [2023-11-21 22:18:33,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 334 events. 15/334 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1463 event pairs, 4 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 375. Up to 23 conditions per place. [2023-11-21 22:18:33,272 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 13 selfloop transitions, 1 changer transitions 0/127 dead transitions. [2023-11-21 22:18:33,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 331 flow [2023-11-21 22:18:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:18:33,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:18:33,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2023-11-21 22:18:33,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544600938967136 [2023-11-21 22:18:33,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:18:33,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2023-11-21 22:18:33,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,279 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 294 flow. Second operand 3 states and 364 transitions. [2023-11-21 22:18:33,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 331 flow [2023-11-21 22:18:33,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 127 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:18:33,283 INFO L231 Difference]: Finished difference. Result has 129 places, 124 transitions, 289 flow [2023-11-21 22:18:33,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=129, PETRI_TRANSITIONS=124} [2023-11-21 22:18:33,285 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -12 predicate places. [2023-11-21 22:18:33,285 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 124 transitions, 289 flow [2023-11-21 22:18:33,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:18:33,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:18:33,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:18:33,286 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-21 22:18:33,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash -250038402, now seen corresponding path program 1 times [2023-11-21 22:18:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:33,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611519723] [2023-11-21 22:18:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:33,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:33,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:33,373 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:18:33,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-11-21 22:18:33,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-21 22:18:33,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-21 22:18:33,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-21 22:18:33,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-21 22:18:33,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-21 22:18:33,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-21 22:18:33,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-21 22:18:33,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-21 22:18:33,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2023-11-21 22:18:33,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-21 22:18:33,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-21 22:18:33,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-21 22:18:33,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-21 22:18:33,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-21 22:18:33,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-21 22:18:33,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-21 22:18:33,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-21 22:18:33,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-21 22:18:33,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-21 22:18:33,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 36 remaining) [2023-11-21 22:18:33,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-11-21 22:18:33,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-21 22:18:33,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-21 22:18:33,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-21 22:18:33,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-21 22:18:33,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-21 22:18:33,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-21 22:18:33,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-21 22:18:33,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr1ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-21 22:18:33,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr2ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-21 22:18:33,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr3ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-21 22:18:33,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr4ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-21 22:18:33,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr5ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-21 22:18:33,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr6ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-21 22:18:33,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpAddErr7ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2023-11-21 22:18:33,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:18:33,399 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:33,407 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:18:33,408 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:18:33,462 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-21 22:18:33,464 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:18:33,465 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-21 22:18:33,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:18:33 BasicIcfg [2023-11-21 22:18:33,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:18:33,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:18:33,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:18:33,481 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:18:33,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:31" (3/4) ... [2023-11-21 22:18:33,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:18:33,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:18:33,485 INFO L158 Benchmark]: Toolchain (without parser) took 3898.42ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 99.9MB in the beginning and 85.9MB in the end (delta: 14.0MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,485 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:33,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.80ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 79.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.40ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,486 INFO L158 Benchmark]: Boogie Preprocessor took 66.96ms. Allocated memory is still 138.4MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,487 INFO L158 Benchmark]: RCFGBuilder took 788.78ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 75.8MB in the beginning and 141.9MB in the end (delta: -66.1MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,489 INFO L158 Benchmark]: TraceAbstraction took 2462.48ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 87.0MB in the end (delta: 54.9MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,489 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 180.4MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:33,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.80ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 79.6MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.40ms. Allocated memory is still 138.4MB. Free memory was 79.6MB in the beginning and 77.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.96ms. Allocated memory is still 138.4MB. Free memory was 77.4MB in the beginning and 75.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 788.78ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 75.8MB in the beginning and 141.9MB in the end (delta: -66.1MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2462.48ms. Allocated memory is still 180.4MB. Free memory was 141.9MB in the beginning and 87.0MB in the end (delta: 54.9MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 180.4MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 730]: Data race detected [2023-11-21 22:18:33,512 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-21 22:18:33,520 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:18:33,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-21 22:18:33,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-11-21 22:18:33,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre17 could not be translated [2023-11-21 22:18:33,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L698] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L699] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L700] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L737] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L738] 0 int i; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L739] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L740] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L741] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L742] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L743] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L744] 0 i = 0 VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L744] COND TRUE 0 i < 10 VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L730] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L745] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpAdd, 0) VAL [i=0, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, t={3:0}] [L721] 2 int status; [L722] CALL 2 BCSP_IoIncrement() [L703] 2 \read(stoppingFlag) [L703] 2 \read(stoppingFlag) [L703] COND TRUE 2 \read(stoppingFlag) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L730] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] Now there is a data race on ~stoppingFlag~0 between C: if (stoppingFlag) { __VERIFIER_atomic_end(); return -1; } else { pendingIo = pendingIo + 1; } [703-708] and C: stoppingFlag = 1 [730] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 732]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 739]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 740]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 212 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 23 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=6, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:18:33,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45b689ac-a196-4241-9719-420f761f20d6/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE