./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:30:34,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:30:34,586 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:30:34,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:30:34,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:30:34,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:30:34,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:30:34,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:30:34,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:30:34,648 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:30:34,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:30:34,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:30:34,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:30:34,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:30:34,652 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:30:34,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:30:34,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:30:34,656 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:30:34,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:30:34,657 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:30:34,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:30:34,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:30:34,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:30:34,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:30:34,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:30:34,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:30:34,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:30:34,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:30:34,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:30:34,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:30:34,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:30:34,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:30:34,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:30:34,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:30:34,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:30:34,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:30:34,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:30:34,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:30:34,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:30:34,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:30:34,665 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:30:34,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:30:34,665 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 [2024-10-14 14:30:34,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:30:34,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:30:34,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:30:34,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:30:34,964 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:30:34,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-10-14 14:30:36,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:30:36,710 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:30:36,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i [2024-10-14 14:30:36,736 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c3f23f1/b715971fa747406c98bda25a8c005890/FLAG9fa637be1 [2024-10-14 14:30:36,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13c3f23f1/b715971fa747406c98bda25a8c005890 [2024-10-14 14:30:36,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:30:36,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:30:36,761 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:30:36,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:30:36,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:30:36,768 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:30:36" (1/1) ... [2024-10-14 14:30:36,769 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ddad1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:36, skipping insertion in model container [2024-10-14 14:30:36,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:30:36" (1/1) ... [2024-10-14 14:30:36,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:30:37,276 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i[41323,41336] [2024-10-14 14:30:37,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:30:37,325 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:30:37,380 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_28-funptr_racefree.i[41323,41336] [2024-10-14 14:30:37,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:30:37,457 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:30:37,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37 WrapperNode [2024-10-14 14:30:37,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:30:37,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:30:37,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:30:37,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:30:37,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,524 INFO L138 Inliner]: procedures = 274, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2024-10-14 14:30:37,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:30:37,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:30:37,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:30:37,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:30:37,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,559 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-10-14 14:30:37,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:30:37,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:30:37,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:30:37,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:30:37,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (1/1) ... [2024-10-14 14:30:37,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:30:37,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:30:37,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 14:30:37,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 14:30:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 14:30:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 14:30:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 14:30:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 14:30:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 14:30:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 14:30:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 14:30:37,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:30:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 14:30:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 14:30:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:30:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:30:37,692 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:30:37,866 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:30:37,869 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:30:38,153 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:30:38,153 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:30:38,382 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:30:38,384 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-14 14:30:38,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:30:38 BoogieIcfgContainer [2024-10-14 14:30:38,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:30:38,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:30:38,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:30:38,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:30:38,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:30:36" (1/3) ... [2024-10-14 14:30:38,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379fb40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:30:38, skipping insertion in model container [2024-10-14 14:30:38,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:30:37" (2/3) ... [2024-10-14 14:30:38,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@379fb40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:30:38, skipping insertion in model container [2024-10-14 14:30:38,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:30:38" (3/3) ... [2024-10-14 14:30:38,393 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2024-10-14 14:30:38,411 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:30:38,411 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:30:38,411 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:30:38,457 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-14 14:30:38,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 57 transitions, 121 flow [2024-10-14 14:30:38,541 INFO L124 PetriNetUnfolderBase]: 13/81 cut-off events. [2024-10-14 14:30:38,541 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 14:30:38,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 81 events. 13/81 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 244 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 52. Up to 4 conditions per place. [2024-10-14 14:30:38,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 57 transitions, 121 flow [2024-10-14 14:30:38,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 55 transitions, 114 flow [2024-10-14 14:30:38,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:30:38,574 INFO L333 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, 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;@1336a2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:30:38,575 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 14:30:38,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:30:38,583 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-14 14:30:38,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:30:38,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:30:38,584 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-14 14:30:38,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 14:30:38,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:30:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1431319436, now seen corresponding path program 1 times [2024-10-14 14:30:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:30:38,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246341886] [2024-10-14 14:30:38,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:30:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:30:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:38,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 14:30:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:38,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 14:30:38,858 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 14:30:38,859 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-14 14:30:38,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-14 14:30:38,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:30:38,862 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-14 14:30:38,869 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 14:30:38,870 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-14 14:30:38,901 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-14 14:30:38,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 86 transitions, 188 flow [2024-10-14 14:30:38,942 INFO L124 PetriNetUnfolderBase]: 24/141 cut-off events. [2024-10-14 14:30:38,942 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-14 14:30:38,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 141 events. 24/141 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 548 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 85. Up to 6 conditions per place. [2024-10-14 14:30:38,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 86 transitions, 188 flow [2024-10-14 14:30:38,948 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 188 flow [2024-10-14 14:30:38,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:30:38,951 INFO L333 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, 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;@1336a2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:30:38,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 14:30:38,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:30:38,961 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-10-14 14:30:38,962 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-14 14:30:38,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:30:38,962 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-10-14 14:30:38,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 14:30:38,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:30:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1512345740, now seen corresponding path program 1 times [2024-10-14 14:30:38,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:30:38,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757328799] [2024-10-14 14:30:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:30:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:30:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:39,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 14:30:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:39,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 14:30:39,068 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 14:30:39,069 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-14 14:30:39,069 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-14 14:30:39,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:30:39,069 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-14 14:30:39,072 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 14:30:39,073 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-14 14:30:39,117 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 14:30:39,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 115 transitions, 257 flow [2024-10-14 14:30:39,182 INFO L124 PetriNetUnfolderBase]: 38/212 cut-off events. [2024-10-14 14:30:39,183 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-14 14:30:39,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 212 events. 38/212 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 949 event pairs, 1 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 152. Up to 12 conditions per place. [2024-10-14 14:30:39,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 115 transitions, 257 flow [2024-10-14 14:30:39,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 115 transitions, 257 flow [2024-10-14 14:30:39,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:30:39,196 INFO L333 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, 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;@1336a2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:30:39,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 14:30:39,208 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:30:39,209 INFO L124 PetriNetUnfolderBase]: 1/57 cut-off events. [2024-10-14 14:30:39,209 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 14:30:39,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:30:39,209 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2024-10-14 14:30:39,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 14:30:39,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:30:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash 984298931, now seen corresponding path program 1 times [2024-10-14 14:30:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:30:39,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167986770] [2024-10-14 14:30:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:30:39,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:30:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:39,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 14:30:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 14:30:39,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 14:30:39,300 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 14:30:39,300 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2024-10-14 14:30:39,301 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-14 14:30:39,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:30:39,301 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-14 14:30:39,302 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-14 14:30:39,302 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-14 14:30:39,355 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-14 14:30:39,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 144 transitions, 328 flow [2024-10-14 14:30:39,403 INFO L124 PetriNetUnfolderBase]: 60/307 cut-off events. [2024-10-14 14:30:39,404 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-14 14:30:39,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 307 events. 60/307 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1453 event pairs, 6 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 236. Up to 32 conditions per place. [2024-10-14 14:30:39,415 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 144 transitions, 328 flow [2024-10-14 14:30:39,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 144 transitions, 328 flow [2024-10-14 14:30:39,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:30:39,423 INFO L333 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, 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;@1336a2bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:30:39,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-14 14:30:39,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:30:39,433 INFO L124 PetriNetUnfolderBase]: 1/66 cut-off events. [2024-10-14 14:30:39,433 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-14 14:30:39,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:30:39,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:30:39,436 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-14 14:30:39,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:30:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash -457392447, now seen corresponding path program 1 times [2024-10-14 14:30:39,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:30:39,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688285136] [2024-10-14 14:30:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:30:39,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:30:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:30:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:30:39,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:30:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688285136] [2024-10-14 14:30:39,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688285136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:30:39,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:30:39,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 14:30:39,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110895448] [2024-10-14 14:30:39,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:30:39,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 14:30:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:30:39,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 14:30:39,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 14:30:39,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 144 [2024-10-14 14:30:39,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 144 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-10-14 14:30:39,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:30:39,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 144 [2024-10-14 14:30:39,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand