./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme --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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:45:20,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:45:20,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:45:20,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:45:20,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:45:20,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:45:20,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:45:20,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:45:20,690 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:45:20,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:45:20,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:45:20,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:45:20,704 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:45:20,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:45:20,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:45:20,707 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:45:20,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:45:20,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:45:20,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:45:20,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:45:20,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:45:20,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:45:20,711 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:45:20,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:45:20,712 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:45:20,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:45:20,713 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:45:20,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:45:20,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:45:20,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:45:20,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:20,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:45:20,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:45:20,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:45:20,717 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:45:20,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:45:20,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:45:20,718 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:45:20,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:45:20,718 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:45:20,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:45:20,719 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_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2023-11-26 11:45:21,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:45:21,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:45:21,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:45:21,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:45:21,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:45:21,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2023-11-26 11:45:24,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:45:24,456 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:45:24,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2023-11-26 11:45:24,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/data/1d35dceca/108a2c6aa0ac4a98aa1927116b6eeed3/FLAG7e38cb827 [2023-11-26 11:45:24,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/data/1d35dceca/108a2c6aa0ac4a98aa1927116b6eeed3 [2023-11-26 11:45:24,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:45:24,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:45:24,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:24,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:45:24,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:45:24,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:24" (1/1) ... [2023-11-26 11:45:24,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3538ea4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:24, skipping insertion in model container [2023-11-26 11:45:24,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:45:24" (1/1) ... [2023-11-26 11:45:24,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:45:25,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:25,067 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:45:25,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:45:25,177 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:45:25,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25 WrapperNode [2023-11-26 11:45:25,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:45:25,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:25,179 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:45:25,179 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:45:25,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,274 INFO L138 Inliner]: procedures = 170, calls = 36, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 197 [2023-11-26 11:45:25,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:45:25,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:45:25,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:45:25,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:45:25,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,329 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:45:25,330 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:45:25,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:45:25,331 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:45:25,332 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (1/1) ... [2023-11-26 11:45:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:45:25,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:45:25,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:45:25,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f95deb4-2926-47ec-a9d1-96c7d6309c56/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:45:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:45:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-26 11:45:25,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-26 11:45:25,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:45:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:45:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:45:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:45:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:45:25,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:45:25,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:45:25,420 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:45:25,620 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:45:25,622 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:45:26,054 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:45:26,265 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:45:26,265 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 11:45:26,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:26 BoogieIcfgContainer [2023-11-26 11:45:26,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:45:26,270 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:45:26,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:45:26,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:45:26,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:45:24" (1/3) ... [2023-11-26 11:45:26,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abf865c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:26, skipping insertion in model container [2023-11-26 11:45:26,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:45:25" (2/3) ... [2023-11-26 11:45:26,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abf865c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:45:26, skipping insertion in model container [2023-11-26 11:45:26,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:45:26" (3/3) ... [2023-11-26 11:45:26,277 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2023-11-26 11:45:26,287 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:45:26,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:45:26,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-11-26 11:45:26,299 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:45:26,411 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:45:26,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 322 flow [2023-11-26 11:45:26,595 INFO L124 PetriNetUnfolderBase]: 11/170 cut-off events. [2023-11-26 11:45:26,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:45:26,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 170 events. 11/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 194 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 143. Up to 4 conditions per place. [2023-11-26 11:45:26,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 159 transitions, 322 flow [2023-11-26 11:45:26,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 159 transitions, 322 flow [2023-11-26 11:45:26,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:26,661 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;@2bc3429a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:26,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-26 11:45:26,713 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:45:26,713 INFO L124 PetriNetUnfolderBase]: 3/48 cut-off events. [2023-11-26 11:45:26,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:45:26,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:26,714 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:26,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-11-26 11:45:26,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1472771739, now seen corresponding path program 1 times [2023-11-26 11:45:26,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:26,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243677974] [2023-11-26 11:45:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:26,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:26,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:45:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:26,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:45:26,918 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:45:26,920 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-11-26 11:45:26,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-11-26 11:45:26,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-11-26 11:45:26,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-11-26 11:45:26,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-11-26 11:45:26,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-11-26 11:45:26,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-11-26 11:45:26,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-11-26 11:45:26,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-11-26 11:45:26,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-11-26 11:45:26,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-11-26 11:45:26,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-11-26 11:45:26,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-11-26 11:45:26,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-11-26 11:45:26,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-11-26 11:45:26,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-11-26 11:45:26,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-11-26 11:45:26,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-11-26 11:45:26,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-11-26 11:45:26,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-11-26 11:45:26,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-11-26 11:45:26,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-11-26 11:45:26,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-11-26 11:45:26,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-11-26 11:45:26,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-11-26 11:45:26,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-11-26 11:45:26,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-11-26 11:45:26,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-11-26 11:45:26,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-11-26 11:45:26,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-11-26 11:45:26,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-11-26 11:45:26,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-11-26 11:45:26,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-11-26 11:45:26,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-11-26 11:45:26,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-11-26 11:45:26,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-11-26 11:45:26,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-11-26 11:45:26,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-11-26 11:45:26,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-11-26 11:45:26,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:45:26,937 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 11:45:26,941 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:45:26,941 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 11:45:27,068 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:45:27,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 290 transitions, 590 flow [2023-11-26 11:45:27,185 INFO L124 PetriNetUnfolderBase]: 21/314 cut-off events. [2023-11-26 11:45:27,185 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 11:45:27,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 314 events. 21/314 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 774 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 273. Up to 6 conditions per place. [2023-11-26 11:45:27,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 276 places, 290 transitions, 590 flow [2023-11-26 11:45:27,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 290 transitions, 590 flow [2023-11-26 11:45:27,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:27,214 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;@2bc3429a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:27,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-26 11:45:27,226 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:45:27,226 INFO L124 PetriNetUnfolderBase]: 4/55 cut-off events. [2023-11-26 11:45:27,227 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:45:27,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:27,227 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] [2023-11-26 11:45:27,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-11-26 11:45:27,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1830882810, now seen corresponding path program 1 times [2023-11-26 11:45:27,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:27,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524629466] [2023-11-26 11:45:27,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:27,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:27,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:27,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524629466] [2023-11-26 11:45:27,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524629466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:27,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:27,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:27,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850571229] [2023-11-26 11:45:27,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:27,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:45:27,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:27,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:45:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:45:27,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 290 [2023-11-26 11:45:27,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 290 transitions, 590 flow. Second operand has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:27,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:27,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 290 [2023-11-26 11:45:27,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:27,706 INFO L124 PetriNetUnfolderBase]: 18/471 cut-off events. [2023-11-26 11:45:27,707 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:45:27,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 471 events. 18/471 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1369 event pairs, 6 based on Foata normal form. 41/457 useless extension candidates. Maximal degree in co-relation 181. Up to 19 conditions per place. [2023-11-26 11:45:27,715 INFO L140 encePairwiseOnDemand]: 254/290 looper letters, 6 selfloop transitions, 0 changer transitions 0/231 dead transitions. [2023-11-26 11:45:27,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 231 transitions, 484 flow [2023-11-26 11:45:27,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:45:27,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 11:45:27,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 534 transitions. [2023-11-26 11:45:27,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9206896551724137 [2023-11-26 11:45:27,744 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 534 transitions. [2023-11-26 11:45:27,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 534 transitions. [2023-11-26 11:45:27,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:27,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 534 transitions. [2023-11-26 11:45:27,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 267.0) internal successors, (534), 2 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:27,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:27,773 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:27,775 INFO L175 Difference]: Start difference. First operand has 276 places, 290 transitions, 590 flow. Second operand 2 states and 534 transitions. [2023-11-26 11:45:27,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 231 transitions, 484 flow [2023-11-26 11:45:27,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 231 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:45:27,793 INFO L231 Difference]: Finished difference. Result has 231 places, 231 transitions, 472 flow [2023-11-26 11:45:27,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=472, PETRI_PLACES=231, PETRI_TRANSITIONS=231} [2023-11-26 11:45:27,807 INFO L281 CegarLoopForPetriNet]: 276 programPoint places, -45 predicate places. [2023-11-26 11:45:27,808 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 231 transitions, 472 flow [2023-11-26 11:45:27,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:27,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:27,809 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:27,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:45:27,810 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2023-11-26 11:45:27,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:27,811 INFO L85 PathProgramCache]: Analyzing trace with hash 777125963, now seen corresponding path program 1 times [2023-11-26 11:45:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:27,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929670091] [2023-11-26 11:45:27,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:27,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:45:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:27,902 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:45:27,902 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:45:27,903 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2023-11-26 11:45:27,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2023-11-26 11:45:27,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2023-11-26 11:45:27,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2023-11-26 11:45:27,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2023-11-26 11:45:27,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2023-11-26 11:45:27,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2023-11-26 11:45:27,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2023-11-26 11:45:27,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2023-11-26 11:45:27,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2023-11-26 11:45:27,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2023-11-26 11:45:27,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2023-11-26 11:45:27,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2023-11-26 11:45:27,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2023-11-26 11:45:27,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2023-11-26 11:45:27,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2023-11-26 11:45:27,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2023-11-26 11:45:27,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2023-11-26 11:45:27,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2023-11-26 11:45:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2023-11-26 11:45:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2023-11-26 11:45:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2023-11-26 11:45:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2023-11-26 11:45:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2023-11-26 11:45:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2023-11-26 11:45:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2023-11-26 11:45:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2023-11-26 11:45:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2023-11-26 11:45:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2023-11-26 11:45:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2023-11-26 11:45:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2023-11-26 11:45:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2023-11-26 11:45:27,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2023-11-26 11:45:27,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2023-11-26 11:45:27,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2023-11-26 11:45:27,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2023-11-26 11:45:27,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2023-11-26 11:45:27,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2023-11-26 11:45:27,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2023-11-26 11:45:27,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2023-11-26 11:45:27,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2023-11-26 11:45:27,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2023-11-26 11:45:27,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2023-11-26 11:45:27,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2023-11-26 11:45:27,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2023-11-26 11:45:27,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2023-11-26 11:45:27,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2023-11-26 11:45:27,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2023-11-26 11:45:27,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2023-11-26 11:45:27,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2023-11-26 11:45:27,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2023-11-26 11:45:27,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2023-11-26 11:45:27,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2023-11-26 11:45:27,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2023-11-26 11:45:27,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2023-11-26 11:45:27,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2023-11-26 11:45:27,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2023-11-26 11:45:27,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2023-11-26 11:45:27,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:45:27,917 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 11:45:27,918 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:45:27,918 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 11:45:28,056 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:45:28,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 421 transitions, 860 flow [2023-11-26 11:45:28,269 INFO L124 PetriNetUnfolderBase]: 31/458 cut-off events. [2023-11-26 11:45:28,269 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 11:45:28,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 458 events. 31/458 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1565 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 403. Up to 8 conditions per place. [2023-11-26 11:45:28,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 421 transitions, 860 flow [2023-11-26 11:45:28,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 400 places, 421 transitions, 860 flow [2023-11-26 11:45:28,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:28,289 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;@2bc3429a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:28,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2023-11-26 11:45:28,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:45:28,299 INFO L124 PetriNetUnfolderBase]: 5/59 cut-off events. [2023-11-26 11:45:28,299 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:45:28,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:28,299 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] [2023-11-26 11:45:28,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-26 11:45:28,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:28,301 INFO L85 PathProgramCache]: Analyzing trace with hash 101420164, now seen corresponding path program 1 times [2023-11-26 11:45:28,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:28,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847153244] [2023-11-26 11:45:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:28,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:28,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:28,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847153244] [2023-11-26 11:45:28,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847153244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:28,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:28,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750466422] [2023-11-26 11:45:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:28,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:45:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:45:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:45:28,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 421 [2023-11-26 11:45:28,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 421 transitions, 860 flow. Second operand has 2 states, 2 states have (on average 357.0) internal successors, (714), 2 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:28,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:28,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 421 [2023-11-26 11:45:28,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:29,184 INFO L124 PetriNetUnfolderBase]: 81/1512 cut-off events. [2023-11-26 11:45:29,185 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-26 11:45:29,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1645 conditions, 1512 events. 81/1512 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8880 event pairs, 42 based on Foata normal form. 175/1502 useless extension candidates. Maximal degree in co-relation 497. Up to 82 conditions per place. [2023-11-26 11:45:29,214 INFO L140 encePairwiseOnDemand]: 368/421 looper letters, 9 selfloop transitions, 0 changer transitions 0/336 dead transitions. [2023-11-26 11:45:29,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 336 transitions, 708 flow [2023-11-26 11:45:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:45:29,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 11:45:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 774 transitions. [2023-11-26 11:45:29,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9192399049881235 [2023-11-26 11:45:29,221 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 774 transitions. [2023-11-26 11:45:29,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 774 transitions. [2023-11-26 11:45:29,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:29,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 774 transitions. [2023-11-26 11:45:29,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 387.0) internal successors, (774), 2 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:29,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:29,231 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:29,231 INFO L175 Difference]: Start difference. First operand has 400 places, 421 transitions, 860 flow. Second operand 2 states and 774 transitions. [2023-11-26 11:45:29,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 336 transitions, 708 flow [2023-11-26 11:45:29,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 336 transitions, 706 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-26 11:45:29,247 INFO L231 Difference]: Finished difference. Result has 335 places, 336 transitions, 688 flow [2023-11-26 11:45:29,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=688, PETRI_PLACES=335, PETRI_TRANSITIONS=336} [2023-11-26 11:45:29,250 INFO L281 CegarLoopForPetriNet]: 400 programPoint places, -65 predicate places. [2023-11-26 11:45:29,250 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 336 transitions, 688 flow [2023-11-26 11:45:29,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 357.0) internal successors, (714), 2 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:29,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:29,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:29,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:45:29,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-26 11:45:29,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash 942226061, now seen corresponding path program 1 times [2023-11-26 11:45:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845877845] [2023-11-26 11:45:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:29,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:29,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845877845] [2023-11-26 11:45:29,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845877845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:29,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:29,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:45:29,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860289145] [2023-11-26 11:45:29,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:29,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:29,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:29,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:29,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:31,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 421 [2023-11-26 11:45:31,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 336 transitions, 688 flow. Second operand has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:31,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:31,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 421 [2023-11-26 11:45:31,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:35,420 INFO L124 PetriNetUnfolderBase]: 1371/13883 cut-off events. [2023-11-26 11:45:35,420 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2023-11-26 11:45:35,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16230 conditions, 13883 events. 1371/13883 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 164772 event pairs, 263 based on Foata normal form. 0/12094 useless extension candidates. Maximal degree in co-relation 16224. Up to 1254 conditions per place. [2023-11-26 11:45:35,588 INFO L140 encePairwiseOnDemand]: 392/421 looper letters, 53 selfloop transitions, 37 changer transitions 0/389 dead transitions. [2023-11-26 11:45:35,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 389 transitions, 1014 flow [2023-11-26 11:45:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:45:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2056 transitions. [2023-11-26 11:45:35,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8139350752177356 [2023-11-26 11:45:35,595 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2056 transitions. [2023-11-26 11:45:35,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2056 transitions. [2023-11-26 11:45:35,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:35,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2056 transitions. [2023-11-26 11:45:35,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.6666666666667) internal successors, (2056), 6 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:35,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:35,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:35,614 INFO L175 Difference]: Start difference. First operand has 335 places, 336 transitions, 688 flow. Second operand 6 states and 2056 transitions. [2023-11-26 11:45:35,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 389 transitions, 1014 flow [2023-11-26 11:45:35,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 389 transitions, 1014 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:45:35,627 INFO L231 Difference]: Finished difference. Result has 345 places, 372 transitions, 964 flow [2023-11-26 11:45:35,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=964, PETRI_PLACES=345, PETRI_TRANSITIONS=372} [2023-11-26 11:45:35,628 INFO L281 CegarLoopForPetriNet]: 400 programPoint places, -55 predicate places. [2023-11-26 11:45:35,629 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 372 transitions, 964 flow [2023-11-26 11:45:35,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.5) internal successors, (1971), 6 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:35,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:35,631 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:35,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:45:35,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2023-11-26 11:45:35,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:35,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1474195066, now seen corresponding path program 1 times [2023-11-26 11:45:35,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:35,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379475154] [2023-11-26 11:45:35,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:35,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:35,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:45:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:45:35,667 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:45:35,668 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:45:35,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2023-11-26 11:45:35,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2023-11-26 11:45:35,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2023-11-26 11:45:35,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2023-11-26 11:45:35,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2023-11-26 11:45:35,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2023-11-26 11:45:35,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2023-11-26 11:45:35,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2023-11-26 11:45:35,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2023-11-26 11:45:35,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2023-11-26 11:45:35,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2023-11-26 11:45:35,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2023-11-26 11:45:35,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2023-11-26 11:45:35,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2023-11-26 11:45:35,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2023-11-26 11:45:35,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2023-11-26 11:45:35,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2023-11-26 11:45:35,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2023-11-26 11:45:35,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2023-11-26 11:45:35,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2023-11-26 11:45:35,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2023-11-26 11:45:35,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2023-11-26 11:45:35,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2023-11-26 11:45:35,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2023-11-26 11:45:35,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2023-11-26 11:45:35,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2023-11-26 11:45:35,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2023-11-26 11:45:35,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2023-11-26 11:45:35,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2023-11-26 11:45:35,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2023-11-26 11:45:35,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2023-11-26 11:45:35,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2023-11-26 11:45:35,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2023-11-26 11:45:35,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2023-11-26 11:45:35,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2023-11-26 11:45:35,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2023-11-26 11:45:35,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2023-11-26 11:45:35,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2023-11-26 11:45:35,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2023-11-26 11:45:35,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2023-11-26 11:45:35,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2023-11-26 11:45:35,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:45:35,682 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 11:45:35,682 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 11:45:35,682 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-26 11:45:35,910 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 11:45:35,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 524 places, 552 transitions, 1132 flow [2023-11-26 11:45:36,126 INFO L124 PetriNetUnfolderBase]: 41/602 cut-off events. [2023-11-26 11:45:36,127 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 11:45:36,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 602 events. 41/602 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2432 event pairs, 0 based on Foata normal form. 0/480 useless extension candidates. Maximal degree in co-relation 533. Up to 10 conditions per place. [2023-11-26 11:45:36,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 524 places, 552 transitions, 1132 flow [2023-11-26 11:45:36,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 524 places, 552 transitions, 1132 flow [2023-11-26 11:45:36,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:45:36,159 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;@2bc3429a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:45:36,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-11-26 11:45:36,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:45:36,165 INFO L124 PetriNetUnfolderBase]: 5/59 cut-off events. [2023-11-26 11:45:36,165 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 11:45:36,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:36,165 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] [2023-11-26 11:45:36,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-26 11:45:36,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1918059460, now seen corresponding path program 1 times [2023-11-26 11:45:36,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:36,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272588807] [2023-11-26 11:45:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:36,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:36,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272588807] [2023-11-26 11:45:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272588807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:45:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678833688] [2023-11-26 11:45:36,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:36,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:45:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:36,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:45:36,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:45:36,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 466 out of 552 [2023-11-26 11:45:36,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 552 transitions, 1132 flow. Second operand has 2 states, 2 states have (on average 467.0) internal successors, (934), 2 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:36,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:36,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 466 of 552 [2023-11-26 11:45:36,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:38,108 INFO L124 PetriNetUnfolderBase]: 324/4689 cut-off events. [2023-11-26 11:45:38,108 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2023-11-26 11:45:38,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5201 conditions, 4689 events. 324/4689 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 41164 event pairs, 204 based on Foata normal form. 710/4817 useless extension candidates. Maximal degree in co-relation 1641. Up to 325 conditions per place. [2023-11-26 11:45:38,208 INFO L140 encePairwiseOnDemand]: 482/552 looper letters, 12 selfloop transitions, 0 changer transitions 0/441 dead transitions. [2023-11-26 11:45:38,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 441 transitions, 934 flow [2023-11-26 11:45:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:45:38,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 11:45:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1014 transitions. [2023-11-26 11:45:38,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9184782608695652 [2023-11-26 11:45:38,213 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1014 transitions. [2023-11-26 11:45:38,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1014 transitions. [2023-11-26 11:45:38,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:38,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1014 transitions. [2023-11-26 11:45:38,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 507.0) internal successors, (1014), 2 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:38,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 552.0) internal successors, (1656), 3 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:38,223 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 552.0) internal successors, (1656), 3 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:38,223 INFO L175 Difference]: Start difference. First operand has 524 places, 552 transitions, 1132 flow. Second operand 2 states and 1014 transitions. [2023-11-26 11:45:38,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 441 transitions, 934 flow [2023-11-26 11:45:38,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 441 transitions, 928 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-26 11:45:38,235 INFO L231 Difference]: Finished difference. Result has 439 places, 441 transitions, 904 flow [2023-11-26 11:45:38,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=552, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=904, PETRI_PLACES=439, PETRI_TRANSITIONS=441} [2023-11-26 11:45:38,237 INFO L281 CegarLoopForPetriNet]: 524 programPoint places, -85 predicate places. [2023-11-26 11:45:38,237 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 441 transitions, 904 flow [2023-11-26 11:45:38,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 467.0) internal successors, (934), 2 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:38,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:38,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:38,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:45:38,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-26 11:45:38,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1817276019, now seen corresponding path program 1 times [2023-11-26 11:45:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53467666] [2023-11-26 11:45:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:45:38,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:38,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53467666] [2023-11-26 11:45:38,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53467666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:38,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:38,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:45:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737477689] [2023-11-26 11:45:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:38,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:38,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:40,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 552 [2023-11-26 11:45:40,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 441 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 438.5) internal successors, (2631), 6 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:40,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:40,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 552 [2023-11-26 11:45:40,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:45:56,590 INFO L124 PetriNetUnfolderBase]: 6427/49913 cut-off events. [2023-11-26 11:45:56,590 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2023-11-26 11:45:57,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59719 conditions, 49913 events. 6427/49913 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 721330 event pairs, 1570 based on Foata normal form. 0/43452 useless extension candidates. Maximal degree in co-relation 59712. Up to 5941 conditions per place. [2023-11-26 11:45:57,826 INFO L140 encePairwiseOnDemand]: 521/552 looper letters, 60 selfloop transitions, 45 changer transitions 0/506 dead transitions. [2023-11-26 11:45:57,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 506 transitions, 1304 flow [2023-11-26 11:45:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:45:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:45:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2731 transitions. [2023-11-26 11:45:57,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8245772946859904 [2023-11-26 11:45:57,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2731 transitions. [2023-11-26 11:45:57,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2731 transitions. [2023-11-26 11:45:57,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:45:57,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2731 transitions. [2023-11-26 11:45:57,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.1666666666667) internal successors, (2731), 6 states have internal predecessors, (2731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:57,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 552.0) internal successors, (3864), 7 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:57,862 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 552.0) internal successors, (3864), 7 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:57,862 INFO L175 Difference]: Start difference. First operand has 439 places, 441 transitions, 904 flow. Second operand 6 states and 2731 transitions. [2023-11-26 11:45:57,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 506 transitions, 1304 flow [2023-11-26 11:45:57,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 506 transitions, 1304 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:45:57,882 INFO L231 Difference]: Finished difference. Result has 449 places, 485 transitions, 1232 flow [2023-11-26 11:45:57,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=552, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1232, PETRI_PLACES=449, PETRI_TRANSITIONS=485} [2023-11-26 11:45:57,886 INFO L281 CegarLoopForPetriNet]: 524 programPoint places, -75 predicate places. [2023-11-26 11:45:57,886 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 485 transitions, 1232 flow [2023-11-26 11:45:57,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.5) internal successors, (2631), 6 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:57,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:45:57,889 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:45:57,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:45:57,889 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-11-26 11:45:57,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:45:57,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1920461136, now seen corresponding path program 1 times [2023-11-26 11:45:57,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:45:57,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144006326] [2023-11-26 11:45:57,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:45:57,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:45:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:45:58,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 11:45:58,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:45:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144006326] [2023-11-26 11:45:58,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144006326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:45:58,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:45:58,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:45:58,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565598864] [2023-11-26 11:45:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:45:58,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:45:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:45:58,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:45:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:45:59,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 552 [2023-11-26 11:45:59,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 485 transitions, 1232 flow. Second operand has 6 states, 6 states have (on average 438.6666666666667) internal successors, (2632), 6 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:45:59,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:45:59,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 552 [2023-11-26 11:45:59,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand