./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.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 ae786c3c70eeefdeb96a7f93e449d2ef503e68ebbd1835f721b2db059c4befb9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:25:06,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:25:06,703 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:25:06,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:25:06,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:25:06,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:25:06,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:25:06,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:25:06,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:25:06,747 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:25:06,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:25:06,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:25:06,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:25:06,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:25:06,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:25:06,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:25:06,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:25:06,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:25:06,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:25:06,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:25:06,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:25:06,757 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:25:06,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:25:06,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:25:06,758 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:25:06,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:25:06,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:25:06,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:25:06,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:25:06,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:25:06,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:25:06,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:25:06,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:25:06,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:25:06,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:25:06,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:25:06,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:25:06,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:25:06,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:25:06,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:25:06,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:25:06,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:25:06,766 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae786c3c70eeefdeb96a7f93e449d2ef503e68ebbd1835f721b2db059c4befb9 [2024-11-18 22:25:07,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:25:07,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:25:07,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:25:07,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:25:07,075 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:25:07,077 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-11-18 22:25:08,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:25:08,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:25:08,880 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-11-18 22:25:08,899 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919934f4f/ac28b5aeb9fb4ad0b4c32db4854e623f/FLAG2f6779f81 [2024-11-18 22:25:09,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919934f4f/ac28b5aeb9fb4ad0b4c32db4854e623f [2024-11-18 22:25:09,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:25:09,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:25:09,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:25:09,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:25:09,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:25:09,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6c53d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09, skipping insertion in model container [2024-11-18 22:25:09,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:25:09,488 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/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i[916,929] [2024-11-18 22:25:09,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:25:09,589 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:25:09,601 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/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-64.i[916,929] [2024-11-18 22:25:09,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:25:09,680 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:25:09,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09 WrapperNode [2024-11-18 22:25:09,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:25:09,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:25:09,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:25:09,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:25:09,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,748 INFO L138 Inliner]: procedures = 26, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 280 [2024-11-18 22:25:09,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:25:09,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:25:09,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:25:09,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:25:09,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,765 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,788 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 22:25:09,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:25:09,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:25:09,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:25:09,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:25:09,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (1/1) ... [2024-11-18 22:25:09,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:25:09,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:25:09,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 22:25:09,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 22:25:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:25:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:25:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:25:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:25:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:25:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:25:10,110 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:25:10,111 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:25:10,570 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-18 22:25:10,571 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:25:10,590 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:25:10,590 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:25:10,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:10 BoogieIcfgContainer [2024-11-18 22:25:10,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:25:10,593 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:25:10,594 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:25:10,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:25:10,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:25:09" (1/3) ... [2024-11-18 22:25:10,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3633a8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:10, skipping insertion in model container [2024-11-18 22:25:10,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:25:09" (2/3) ... [2024-11-18 22:25:10,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3633a8af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:25:10, skipping insertion in model container [2024-11-18 22:25:10,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:25:10" (3/3) ... [2024-11-18 22:25:10,599 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-64.i [2024-11-18 22:25:10,612 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:25:10,613 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:25:10,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:25:10,681 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;@34420a55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:25:10,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:25:10,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 80 states have internal predecessors, (114), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 22:25:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-18 22:25:10,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:25:10,702 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:25:10,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:25:10,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:25:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1977670907, now seen corresponding path program 1 times [2024-11-18 22:25:10,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:25:10,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973690417] [2024-11-18 22:25:10,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:10,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:25:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-18 22:25:11,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:25:11,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973690417] [2024-11-18 22:25:11,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973690417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:25:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180379769] [2024-11-18 22:25:11,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:11,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:25:11,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:25:11,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:25:11,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:25:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:11,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:25:11,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:25:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-18 22:25:11,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:25:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180379769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:25:11,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:25:11,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:25:11,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85943904] [2024-11-18 22:25:11,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:25:11,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:25:11,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:25:11,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:25:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:25:11,568 INFO L87 Difference]: Start difference. First operand has 111 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 80 states have internal predecessors, (114), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-18 22:25:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:25:11,600 INFO L93 Difference]: Finished difference Result 219 states and 370 transitions. [2024-11-18 22:25:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:25:11,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) Word has length 189 [2024-11-18 22:25:11,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:25:11,612 INFO L225 Difference]: With dead ends: 219 [2024-11-18 22:25:11,613 INFO L226 Difference]: Without dead ends: 107 [2024-11-18 22:25:11,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:25:11,620 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:25:11,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:25:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-18 22:25:11,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-18 22:25:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 76 states have (on average 1.4078947368421053) internal successors, (107), 76 states have internal predecessors, (107), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-18 22:25:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 165 transitions. [2024-11-18 22:25:11,687 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 165 transitions. Word has length 189 [2024-11-18 22:25:11,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:25:11,687 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 165 transitions. [2024-11-18 22:25:11,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (29), 1 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-18 22:25:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 165 transitions. [2024-11-18 22:25:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-18 22:25:11,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:25:11,693 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:25:11,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:25:11,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:25:11,894 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:25:11,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:25:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1476190327, now seen corresponding path program 1 times [2024-11-18 22:25:11,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:25:11,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245600334] [2024-11-18 22:25:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:25:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2024-11-18 22:25:24,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:25:24,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245600334] [2024-11-18 22:25:24,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245600334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:25:24,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:25:24,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-18 22:25:24,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530133267] [2024-11-18 22:25:24,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:25:24,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-18 22:25:24,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:25:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-18 22:25:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-18 22:25:24,366 INFO L87 Difference]: Start difference. First operand 107 states and 165 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-18 22:25:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:25:30,110 INFO L93 Difference]: Finished difference Result 556 states and 848 transitions. [2024-11-18 22:25:30,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 22:25:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 189 [2024-11-18 22:25:30,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:25:30,121 INFO L225 Difference]: With dead ends: 556 [2024-11-18 22:25:30,121 INFO L226 Difference]: Without dead ends: 452 [2024-11-18 22:25:30,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=319, Invalid=941, Unknown=0, NotChecked=0, Total=1260 [2024-11-18 22:25:30,127 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1792 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 1759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-18 22:25:30,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 1312 Invalid, 1759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-18 22:25:30,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-18 22:25:30,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 226. [2024-11-18 22:25:30,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 155 states have (on average 1.3741935483870968) internal successors, (213), 156 states have internal predecessors, (213), 67 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-18 22:25:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 347 transitions. [2024-11-18 22:25:30,198 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 347 transitions. Word has length 189 [2024-11-18 22:25:30,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:25:30,199 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 347 transitions. [2024-11-18 22:25:30,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 4 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-18 22:25:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 347 transitions. [2024-11-18 22:25:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-18 22:25:30,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:25:30,207 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:25:30,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:25:30,207 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:25:30,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:25:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1083163317, now seen corresponding path program 1 times [2024-11-18 22:25:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:25:30,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700341775] [2024-11-18 22:25:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:30,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:25:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-11-18 22:25:32,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:25:32,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700341775] [2024-11-18 22:25:32,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700341775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:25:32,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149039646] [2024-11-18 22:25:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:32,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:25:32,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:25:32,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:25:32,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 22:25:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:32,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 22:25:32,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:25:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 600 proven. 18 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2024-11-18 22:25:32,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:25:33,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 66 proven. 18 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-11-18 22:25:33,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149039646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 22:25:33,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 22:25:33,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 6, 6] total 22 [2024-11-18 22:25:33,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998790322] [2024-11-18 22:25:33,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 22:25:33,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 22:25:33,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:25:33,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 22:25:33,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-11-18 22:25:33,261 INFO L87 Difference]: Start difference. First operand 226 states and 347 transitions. Second operand has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 7 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 7 states have call successors, (65) [2024-11-18 22:25:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:25:35,530 INFO L93 Difference]: Finished difference Result 528 states and 806 transitions. [2024-11-18 22:25:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-18 22:25:35,533 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 7 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 7 states have call successors, (65) Word has length 189 [2024-11-18 22:25:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:25:35,539 INFO L225 Difference]: With dead ends: 528 [2024-11-18 22:25:35,539 INFO L226 Difference]: Without dead ends: 365 [2024-11-18 22:25:35,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=490, Invalid=2060, Unknown=0, NotChecked=0, Total=2550 [2024-11-18 22:25:35,547 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1705 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:25:35,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 1181 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 22:25:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-18 22:25:35,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 175. [2024-11-18 22:25:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 110 states have (on average 1.2636363636363637) internal successors, (139), 111 states have internal predecessors, (139), 58 states have call successors, (58), 6 states have call predecessors, (58), 6 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-18 22:25:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 255 transitions. [2024-11-18 22:25:35,596 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 255 transitions. Word has length 189 [2024-11-18 22:25:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:25:35,598 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 255 transitions. [2024-11-18 22:25:35,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 21 states have internal predecessors, (103), 7 states have call successors, (64), 2 states have call predecessors, (64), 4 states have return successors, (65), 6 states have call predecessors, (65), 7 states have call successors, (65) [2024-11-18 22:25:35,599 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 255 transitions. [2024-11-18 22:25:35,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-18 22:25:35,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:25:35,602 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:25:35,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 22:25:35,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-18 22:25:35,803 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:25:35,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:25:35,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1988310204, now seen corresponding path program 1 times [2024-11-18 22:25:35,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:25:35,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646633106] [2024-11-18 22:25:35,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:35,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:25:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 33 proven. 51 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-11-18 22:25:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:25:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646633106] [2024-11-18 22:25:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646633106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:25:37,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638684004] [2024-11-18 22:25:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:25:37,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:25:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:25:37,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:25:37,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 22:25:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:25:37,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-18 22:25:37,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:25:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 825 proven. 303 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-18 22:25:41,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 22:25:43,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638684004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:25:43,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-18 22:25:43,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 25] total 38 [2024-11-18 22:25:43,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446356294] [2024-11-18 22:25:43,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-18 22:25:43,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-18 22:25:43,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:25:43,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-18 22:25:43,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=415, Invalid=2135, Unknown=0, NotChecked=0, Total=2550 [2024-11-18 22:25:43,198 INFO L87 Difference]: Start difference. First operand 175 states and 255 transitions. Second operand has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 34 states have internal predecessors, (116), 11 states have call successors, (58), 8 states have call predecessors, (58), 10 states have return successors, (58), 10 states have call predecessors, (58), 11 states have call successors, (58) [2024-11-18 22:26:21,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:26:21,918 INFO L93 Difference]: Finished difference Result 695 states and 990 transitions. [2024-11-18 22:26:21,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-18 22:26:21,919 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 34 states have internal predecessors, (116), 11 states have call successors, (58), 8 states have call predecessors, (58), 10 states have return successors, (58), 10 states have call predecessors, (58), 11 states have call successors, (58) Word has length 192 [2024-11-18 22:26:21,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:26:21,924 INFO L225 Difference]: With dead ends: 695 [2024-11-18 22:26:21,925 INFO L226 Difference]: Without dead ends: 587 [2024-11-18 22:26:21,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2980 ImplicationChecksByTransitivity, 36.6s TimeCoverageRelationStatistics Valid=2112, Invalid=9227, Unknown=3, NotChecked=0, Total=11342 [2024-11-18 22:26:21,930 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 2023 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 2540 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:26:21,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 2156 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2540 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-18 22:26:21,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-18 22:26:22,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 301. [2024-11-18 22:26:22,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 221 states have (on average 1.3665158371040724) internal successors, (302), 222 states have internal predecessors, (302), 67 states have call successors, (67), 12 states have call predecessors, (67), 12 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-18 22:26:22,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 436 transitions. [2024-11-18 22:26:22,004 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 436 transitions. Word has length 192 [2024-11-18 22:26:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:26:22,005 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 436 transitions. [2024-11-18 22:26:22,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.135135135135135) internal successors, (116), 34 states have internal predecessors, (116), 11 states have call successors, (58), 8 states have call predecessors, (58), 10 states have return successors, (58), 10 states have call predecessors, (58), 11 states have call successors, (58) [2024-11-18 22:26:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 436 transitions. [2024-11-18 22:26:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-18 22:26:22,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:26:22,008 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:26:22,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 22:26:22,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:26:22,213 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:26:22,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:26:22,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1396773740, now seen corresponding path program 1 times [2024-11-18 22:26:22,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:26:22,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217487389] [2024-11-18 22:26:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:26:22,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:26:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:26:23,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 132 proven. 168 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2024-11-18 22:26:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:26:23,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217487389] [2024-11-18 22:26:23,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217487389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:26:23,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024296159] [2024-11-18 22:26:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:26:23,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:26:23,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:26:23,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:26:23,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 22:26:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:26:23,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-18 22:26:23,845 INFO L278 TraceCheckSpWp]: Computing forward predicates...