./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:00:32,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:00:32,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:00:32,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:00:32,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:00:32,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:00:32,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:00:32,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:00:32,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:00:32,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:00:32,799 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:00:32,799 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:00:32,799 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:00:32,801 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:00:32,801 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:00:32,802 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:00:32,802 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:00:32,803 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:00:32,803 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:00:32,804 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:00:32,804 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:00:32,806 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:00:32,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:00:32,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:00:32,808 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:00:32,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:00:32,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:00:32,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:00:32,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:00:32,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:00:32,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:00:32,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:00:32,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:00:32,812 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:00:32,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:00:32,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:00:32,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:00:32,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:00:32,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:32,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:00:32,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:00:32,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:00:32,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:00:32,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:00:32,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:00:32,815 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:00:32,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:00:32,816 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2023-11-19 05:00:33,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:00:33,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:00:33,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:00:33,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:00:33,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:00:33,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-19 05:00:36,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:00:36,776 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:00:36,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/sv-benchmarks/c/pthread-complex/workstealqueue_mutex-2.i [2023-11-19 05:00:36,815 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/data/dd76ca011/af77f6adcda349deac70996a25c2f778/FLAG2f7cf2f0e [2023-11-19 05:00:36,833 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/data/dd76ca011/af77f6adcda349deac70996a25c2f778 [2023-11-19 05:00:36,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:00:36,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:00:36,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:36,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:00:36,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:00:36,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:36" (1/1) ... [2023-11-19 05:00:36,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677ca15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:36, skipping insertion in model container [2023-11-19 05:00:36,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:00:36" (1/1) ... [2023-11-19 05:00:36,933 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:00:37,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:37,913 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:00:38,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:00:38,237 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:38,237 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:00:38,245 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:00:38,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38 WrapperNode [2023-11-19 05:00:38,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:00:38,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:38,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:00:38,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:00:38,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,470 INFO L138 Inliner]: procedures = 489, calls = 130, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 1948 [2023-11-19 05:00:38,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:00:38,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:00:38,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:00:38,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:00:38,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:00:38,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:00:38,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:00:38,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:00:38,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (1/1) ... [2023-11-19 05:00:38,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:00:38,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:00:38,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:00:38,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_872b049c-bc83-446e-96fb-3ef80af95b0e/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2023-11-19 05:00:38,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2023-11-19 05:00:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 05:00:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:00:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 05:00:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:00:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:00:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:00:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:00:38,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:00:38,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:00:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:00:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:00:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:00:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:00:38,773 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:00:39,193 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:00:39,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:00:41,554 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:00:42,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:00:42,067 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-19 05:00:42,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:42 BoogieIcfgContainer [2023-11-19 05:00:42,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:00:42,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:00:42,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:00:42,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:00:42,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:00:36" (1/3) ... [2023-11-19 05:00:42,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c2ba66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:42, skipping insertion in model container [2023-11-19 05:00:42,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:00:38" (2/3) ... [2023-11-19 05:00:42,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60c2ba66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:00:42, skipping insertion in model container [2023-11-19 05:00:42,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:00:42" (3/3) ... [2023-11-19 05:00:42,086 INFO L112 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2023-11-19 05:00:42,096 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:00:42,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:00:42,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 90 error locations. [2023-11-19 05:00:42,107 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:00:42,326 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 05:00:42,387 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:00:42,403 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1939 places, 2011 transitions, 4029 flow [2023-11-19 05:00:42,408 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1939 places, 2011 transitions, 4029 flow [2023-11-19 05:00:42,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1939 places, 2011 transitions, 4029 flow [2023-11-19 05:00:44,271 INFO L124 PetriNetUnfolderBase]: 141/3742 cut-off events. [2023-11-19 05:00:44,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 05:00:44,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3747 conditions, 3742 events. 141/3742 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 18638 event pairs, 0 based on Foata normal form. 0/3432 useless extension candidates. Maximal degree in co-relation 1913. Up to 6 conditions per place. [2023-11-19 05:00:44,592 INFO L119 LiptonReduction]: Number of co-enabled transitions 602386