/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 11:06:32,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 11:06:32,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 11:06:32,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 11:06:32,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 11:06:32,384 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 11:06:32,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 11:06:32,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 11:06:32,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 11:06:32,390 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 11:06:32,390 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 11:06:32,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 11:06:32,390 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 11:06:32,391 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 11:06:32,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 11:06:32,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 11:06:32,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 11:06:32,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 11:06:32,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 11:06:32,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 11:06:32,393 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 11:06:32,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 11:06:32,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 11:06:32,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 11:06:32,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 11:06:32,394 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 11:06:32,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 11:06:32,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:06:32,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 11:06:32,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 11:06:32,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 11:06:32,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 11:06:32,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 11:06:32,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 11:06:32,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 11:06:32,397 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 11:06:32,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 11:06:32,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 11:06:32,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 11:06:32,719 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 11:06:32,720 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 11:06:32,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-08-27 11:06:33,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 11:06:34,088 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 11:06:34,088 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/06-symbeq_11a-equ_nr.i [2023-08-27 11:06:34,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cdeb25c/8c28c95a251f49f1b00f457643f586c4/FLAG66a53ba17 [2023-08-27 11:06:34,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cdeb25c/8c28c95a251f49f1b00f457643f586c4 [2023-08-27 11:06:34,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 11:06:34,132 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 11:06:34,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 11:06:34,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 11:06:34,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 11:06:34,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3988c6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34, skipping insertion in model container [2023-08-27 11:06:34,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 11:06:34,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:06:34,629 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 11:06:34,652 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-27 11:06:34,654 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [245] [2023-08-27 11:06:34,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 11:06:34,744 INFO L206 MainTranslator]: Completed translation [2023-08-27 11:06:34,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34 WrapperNode [2023-08-27 11:06:34,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 11:06:34,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 11:06:34,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 11:06:34,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 11:06:34,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,813 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-08-27 11:06:34,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 11:06:34,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 11:06:34,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 11:06:34,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 11:06:34,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 11:06:34,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 11:06:34,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 11:06:34,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 11:06:34,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (1/1) ... [2023-08-27 11:06:34,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 11:06:34,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 11:06:34,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 11:06:34,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 11:06:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 11:06:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 11:06:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 11:06:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-27 11:06:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 11:06:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 11:06:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 11:06:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 11:06:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 11:06:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 11:06:34,952 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 11:06:35,103 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 11:06:35,105 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 11:06:35,287 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 11:06:35,293 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 11:06:35,293 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 11:06:35,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:06:35 BoogieIcfgContainer [2023-08-27 11:06:35,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 11:06:35,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 11:06:35,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 11:06:35,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 11:06:35,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:06:34" (1/3) ... [2023-08-27 11:06:35,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab7e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:06:35, skipping insertion in model container [2023-08-27 11:06:35,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:06:34" (2/3) ... [2023-08-27 11:06:35,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab7e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:06:35, skipping insertion in model container [2023-08-27 11:06:35,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:06:35" (3/3) ... [2023-08-27 11:06:35,302 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11a-equ_nr.i [2023-08-27 11:06:35,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 11:06:35,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-27 11:06:35,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 11:06:35,388 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 11:06:35,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 161 flow [2023-08-27 11:06:35,450 INFO L124 PetriNetUnfolderBase]: 1/77 cut-off events. [2023-08-27 11:06:35,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:35,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 1/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-08-27 11:06:35,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 78 transitions, 161 flow [2023-08-27 11:06:35,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 47 transitions, 94 flow [2023-08-27 11:06:35,460 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 11:06:35,467 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-27 11:06:35,469 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 47 transitions, 94 flow [2023-08-27 11:06:35,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 47 transitions, 94 flow [2023-08-27 11:06:35,483 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-08-27 11:06:35,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:35,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 47 events. 0/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-27 11:06:35,484 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2023-08-27 11:06:37,953 INFO L134 LiptonReduction]: Checked pairs total: 0 [2023-08-27 11:06:37,953 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-27 11:06:37,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 11:06:37,979 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@3b593912, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 11:06:37,980 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-27 11:06:37,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 11:06:37,982 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-27 11:06:37,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:37,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:37,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 11:06:37,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-27 11:06:37,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 249, now seen corresponding path program 1 times [2023-08-27 11:06:37,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:37,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587061033] [2023-08-27 11:06:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:37,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 11:06:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 11:06:38,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 11:06:38,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587061033] [2023-08-27 11:06:38,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587061033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 11:06:38,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 11:06:38,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 11:06:38,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479311265] [2023-08-27 11:06:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 11:06:38,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 11:06:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 11:06:38,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 11:06:38,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 11:06:38,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 130 [2023-08-27 11:06:38,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5 places, 4 transitions, 8 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:38,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 11:06:38,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 130 [2023-08-27 11:06:38,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 11:06:38,137 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-27 11:06:38,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 11:06:38,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4 conditions, 1 events. 0/1 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/1 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-27 11:06:38,139 INFO L140 encePairwiseOnDemand]: 127/130 looper letters, 1 selfloop transitions, 0 changer transitions 0/1 dead transitions. [2023-08-27 11:06:38,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 3 places, 1 transitions, 4 flow [2023-08-27 11:06:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 11:06:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 11:06:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 158 transitions. [2023-08-27 11:06:38,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6076923076923076 [2023-08-27 11:06:38,150 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 158 transitions. [2023-08-27 11:06:38,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 158 transitions. [2023-08-27 11:06:38,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 11:06:38,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 158 transitions. [2023-08-27 11:06:38,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 79.0) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:38,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:38,158 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:38,160 INFO L175 Difference]: Start difference. First operand has 5 places, 4 transitions, 8 flow. Second operand 2 states and 158 transitions. [2023-08-27 11:06:38,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 3 places, 1 transitions, 4 flow [2023-08-27 11:06:38,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 3 places, 1 transitions, 4 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-27 11:06:38,162 INFO L231 Difference]: Finished difference. Result has 3 places, 1 transitions, 2 flow [2023-08-27 11:06:38,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=2, PETRI_DIFFERENCE_MINUEND_PLACES=2, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2, PETRI_PLACES=3, PETRI_TRANSITIONS=1} [2023-08-27 11:06:38,166 INFO L281 CegarLoopForPetriNet]: 5 programPoint places, -2 predicate places. [2023-08-27 11:06:38,167 INFO L495 AbstractCegarLoop]: Abstraction has has 3 places, 1 transitions, 2 flow [2023-08-27 11:06:38,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-27 11:06:38,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 11:06:38,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 11:06:38,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 11:06:38,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-08-27 11:06:38,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 11:06:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 251, now seen corresponding path program 1 times [2023-08-27 11:06:38,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 11:06:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649102928] [2023-08-27 11:06:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 11:06:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 11:06:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:06:38,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 11:06:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 11:06:38,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 11:06:38,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 11:06:38,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2023-08-27 11:06:38,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2023-08-27 11:06:38,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2023-08-27 11:06:38,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2023-08-27 11:06:38,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-08-27 11:06:38,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 11:06:38,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-27 11:06:38,245 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 11:06:38,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 11:06:38,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:06:38 BasicIcfg [2023-08-27 11:06:38,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 11:06:38,258 INFO L158 Benchmark]: Toolchain (without parser) took 4126.43ms. Allocated memory was 367.0MB in the beginning and 488.6MB in the end (delta: 121.6MB). Free memory was 341.4MB in the beginning and 330.7MB in the end (delta: 10.6MB). Peak memory consumption was 134.2MB. Max. memory is 16.0GB. [2023-08-27 11:06:38,259 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 343.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:06:38,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.77ms. Allocated memory is still 367.0MB. Free memory was 341.0MB in the beginning and 312.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-27 11:06:38,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.65ms. Allocated memory is still 367.0MB. Free memory was 312.9MB in the beginning and 310.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 11:06:38,260 INFO L158 Benchmark]: Boogie Preprocessor took 41.64ms. Allocated memory is still 367.0MB. Free memory was 310.4MB in the beginning and 308.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 11:06:38,260 INFO L158 Benchmark]: RCFGBuilder took 438.08ms. Allocated memory is still 367.0MB. Free memory was 308.8MB in the beginning and 294.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-27 11:06:38,261 INFO L158 Benchmark]: TraceAbstraction took 2960.58ms. Allocated memory was 367.0MB in the beginning and 488.6MB in the end (delta: 121.6MB). Free memory was 294.5MB in the beginning and 330.7MB in the end (delta: -36.2MB). Peak memory consumption was 88.1MB. Max. memory is 16.0GB. [2023-08-27 11:06:38,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 367.0MB. Free memory is still 343.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 612.77ms. Allocated memory is still 367.0MB. Free memory was 341.0MB in the beginning and 312.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 67.65ms. Allocated memory is still 367.0MB. Free memory was 312.9MB in the beginning and 310.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 41.64ms. Allocated memory is still 367.0MB. Free memory was 310.4MB in the beginning and 308.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 438.08ms. Allocated memory is still 367.0MB. Free memory was 308.8MB in the beginning and 294.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2960.58ms. Allocated memory was 367.0MB in the beginning and 488.6MB in the end (delta: 121.6MB). Free memory was 294.5MB in the beginning and 330.7MB in the end (delta: -36.2MB). Peak memory consumption was 88.1MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] - GenericResultAtLocation [Line: 245]: Unsoundness Warning unspecified type, defaulting to int C: short [245] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.5s, 48 PlacesBefore, 5 PlacesAfterwards, 47 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1010]: integer overflow possible integer overflow possible We found a FailurePath: [L989-L993] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1003] int x = __VERIFIER_nondet_int(); [L1004] pthread_t id; [L1005] struct s *s; [L1006] int *d; [L1007] pthread_mutex_t *m; [L1008] COND TRUE \read(x) [L1009] s = &A [L1010] x++ VAL [A={1:0}, B={2:0}, id={3:0}, s={1:0}, x++=2147483647, x=2147483647] - UnprovableResult [Line: 1010]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-27 11:06:38,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...