./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 735b3cc8 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.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 f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 00:56:25,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:56:25,489 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:56:25,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:56:25,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:56:25,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:56:25,512 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:56:25,513 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:56:25,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:56:25,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:56:25,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:56:25,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:56:25,514 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:56:25,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:56:25,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:56:25,515 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2025-03-14 00:56:25,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:56:25,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:56:25,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:56:25,745 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:56:25,745 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:56:25,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2025-03-14 00:56:26,861 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3773d47/3a0aaa91fd1746d48843c3c194147a8c/FLAG00cf306e9 [2025-03-14 00:56:27,119 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:56:27,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2025-03-14 00:56:27,133 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3773d47/3a0aaa91fd1746d48843c3c194147a8c/FLAG00cf306e9 [2025-03-14 00:56:27,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb3773d47/3a0aaa91fd1746d48843c3c194147a8c [2025-03-14 00:56:27,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:56:27,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:56:27,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:56:27,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:56:27,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:56:27,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a44e8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27, skipping insertion in model container [2025-03-14 00:56:27,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:56:27,587 WARN L250 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/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2025-03-14 00:56:27,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:56:27,691 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:56:27,700 WARN L250 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/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2025-03-14 00:56:27,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:56:27,741 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:56:27,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27 WrapperNode [2025-03-14 00:56:27,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:56:27,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:56:27,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:56:27,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:56:27,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,764 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2025-03-14 00:56:27,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:56:27,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:56:27,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:56:27,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:56:27,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,778 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-03-14 00:56:27,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:56:27,785 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:56:27,785 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:56:27,785 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:56:27,785 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (1/1) ... [2025-03-14 00:56:27,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:56:27,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:56:27,808 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) [2025-03-14 00:56:27,812 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 [2025-03-14 00:56:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-14 00:56:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-14 00:56:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-14 00:56:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:56:27,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:56:27,828 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:56:27,920 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:56:27,921 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:56:28,015 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:56:28,016 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:56:28,016 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:56:28,126 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:56:28,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:56:28 BoogieIcfgContainer [2025-03-14 00:56:28,128 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:56:28,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:56:28,131 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:56:28,135 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:56:28,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:56:27" (1/3) ... [2025-03-14 00:56:28,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13503ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:56:28, skipping insertion in model container [2025-03-14 00:56:28,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:56:27" (2/3) ... [2025-03-14 00:56:28,136 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13503ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:56:28, skipping insertion in model container [2025-03-14 00:56:28,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:56:28" (3/3) ... [2025-03-14 00:56:28,138 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2025-03-14 00:56:28,150 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:56:28,151 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_19-publish-precision_unknown_1_pos.i that has 2 procedures, 28 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-14 00:56:28,151 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:56:28,184 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 00:56:28,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 28 transitions, 63 flow [2025-03-14 00:56:28,240 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2025-03-14 00:56:28,242 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 00:56:28,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 27 events. 1/27 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2025-03-14 00:56:28,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 28 transitions, 63 flow [2025-03-14 00:56:28,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-03-14 00:56:28,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:56:28,267 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;@6d742ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:56:28,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-14 00:56:28,274 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:56:28,274 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-14 00:56:28,274 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:56:28,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:56:28,275 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:56:28,275 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:56:28,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:56:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash -710103789, now seen corresponding path program 1 times [2025-03-14 00:56:28,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:56:28,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717057562] [2025-03-14 00:56:28,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:56:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:56:28,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-14 00:56:28,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-14 00:56:28,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:56:28,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:56:28,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:56:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:56:28,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717057562] [2025-03-14 00:56:28,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717057562] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:56:28,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:56:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:56:28,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863401872] [2025-03-14 00:56:28,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:56:28,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-14 00:56:28,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:56:28,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-14 00:56:28,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-14 00:56:28,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2025-03-14 00:56:28,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-14 00:56:28,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:56:28,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2025-03-14 00:56:28,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:56:28,683 INFO L124 PetriNetUnfolderBase]: 32/101 cut-off events. [2025-03-14 00:56:28,683 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:56:28,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 101 events. 32/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 307 event pairs, 16 based on Foata normal form. 10/109 useless extension candidates. Maximal degree in co-relation 184. Up to 46 conditions per place. [2025-03-14 00:56:28,684 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 15 selfloop transitions, 3 changer transitions 10/33 dead transitions. [2025-03-14 00:56:28,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 33 transitions, 125 flow [2025-03-14 00:56:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-14 00:56:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-14 00:56:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2025-03-14 00:56:28,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2025-03-14 00:56:28,696 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 65 transitions. [2025-03-14 00:56:28,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 33 transitions, 125 flow [2025-03-14 00:56:28,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-14 00:56:28,704 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 57 flow [2025-03-14 00:56:28,706 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2025-03-14 00:56:28,710 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2025-03-14 00:56:28,710 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 57 flow [2025-03-14 00:56:28,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-14 00:56:28,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:56:28,711 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:56:28,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:56:28,711 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:56:28,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:56:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1346235662, now seen corresponding path program 1 times [2025-03-14 00:56:28,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:56:28,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188863943] [2025-03-14 00:56:28,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:56:28,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:56:28,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-14 00:56:28,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-14 00:56:28,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:56:28,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:56:28,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:56:28,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:56:28,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188863943] [2025-03-14 00:56:28,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188863943] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:56:28,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:56:28,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 00:56:28,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424463397] [2025-03-14 00:56:28,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:56:28,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 00:56:28,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:56:28,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 00:56:28,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 00:56:28,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2025-03-14 00:56:28,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-03-14 00:56:28,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:56:28,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2025-03-14 00:56:28,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:56:28,893 INFO L124 PetriNetUnfolderBase]: 11/47 cut-off events. [2025-03-14 00:56:28,893 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 00:56:28,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 47 events. 11/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 5 based on Foata normal form. 7/50 useless extension candidates. Maximal degree in co-relation 96. Up to 21 conditions per place. [2025-03-14 00:56:28,893 INFO L140 encePairwiseOnDemand]: 22/28 looper letters, 7 selfloop transitions, 3 changer transitions 9/24 dead transitions. [2025-03-14 00:56:28,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 24 transitions, 101 flow [2025-03-14 00:56:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 00:56:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 00:56:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-03-14 00:56:28,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2025-03-14 00:56:28,894 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 57 flow. Second operand 3 states and 48 transitions. [2025-03-14 00:56:28,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 24 transitions, 101 flow [2025-03-14 00:56:28,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 24 transitions, 91 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-03-14 00:56:28,895 INFO L231 Difference]: Finished difference. Result has 26 places, 14 transitions, 40 flow [2025-03-14 00:56:28,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=26, PETRI_TRANSITIONS=14} [2025-03-14 00:56:28,896 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 2 predicate places. [2025-03-14 00:56:28,896 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 40 flow [2025-03-14 00:56:28,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2025-03-14 00:56:28,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:56:28,896 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:56:28,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:56:28,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 00:56:28,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:56:28,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1282259664, now seen corresponding path program 1 times [2025-03-14 00:56:28,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:56:28,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199486737] [2025-03-14 00:56:28,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:56:28,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:56:28,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-14 00:56:28,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-14 00:56:28,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:56:28,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 00:56:28,913 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 00:56:28,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-14 00:56:28,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-14 00:56:28,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:56:28,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 00:56:28,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 00:56:28,937 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 00:56:28,938 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-14 00:56:28,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-03-14 00:56:28,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:56:28,942 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 00:56:28,961 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 00:56:28,962 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 00:56:28,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 12:56:28 BasicIcfg [2025-03-14 00:56:28,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 00:56:28,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-14 00:56:28,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-14 00:56:28,966 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-14 00:56:28,966 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:56:28" (3/4) ... [2025-03-14 00:56:28,967 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-14 00:56:29,000 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-03-14 00:56:29,034 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-14 00:56:29,034 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-14 00:56:29,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-14 00:56:29,036 INFO L158 Benchmark]: Toolchain (without parser) took 1604.75ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 101.6MB in the end (delta: 27.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2025-03-14 00:56:29,036 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 192.9MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:56:29,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.42ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 109.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-14 00:56:29,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.61ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-14 00:56:29,038 INFO L158 Benchmark]: Boogie Preprocessor took 19.71ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:56:29,038 INFO L158 Benchmark]: IcfgBuilder took 344.50ms. Allocated memory is still 167.8MB. Free memory was 106.3MB in the beginning and 78.9MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-14 00:56:29,040 INFO L158 Benchmark]: TraceAbstraction took 834.13ms. Allocated memory is still 167.8MB. Free memory was 78.3MB in the beginning and 107.4MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:56:29,040 INFO L158 Benchmark]: Witness Printer took 69.05ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 101.6MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-14 00:56:29,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 192.9MB. Free memory is still 119.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.42ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 109.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.61ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.6MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.71ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 344.50ms. Allocated memory is still 167.8MB. Free memory was 106.3MB in the beginning and 78.9MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 834.13ms. Allocated memory is still 167.8MB. Free memory was 78.3MB in the beginning and 107.4MB in the end (delta: -29.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.05ms. Allocated memory is still 167.8MB. Free memory was 107.4MB in the beginning and 101.6MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob1=0, id=-1, mutex1={3:0}, mutex2={4:0}] [L687] 1 glob1 = 5 VAL [\old(arg)={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(cond)=0, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-14 00:56:29,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE