./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c -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 4b2ee659e7bd0f15011c822a777a938a0e6f5b3a8f826a051cccefa88973daa0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:19:59,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:19:59,571 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:19:59,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:19:59,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:19:59,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:19:59,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:19:59,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:19:59,586 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:19:59,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:19:59,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:19:59,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:19:59,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:19:59,588 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:19:59,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:19:59,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:19:59,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b2ee659e7bd0f15011c822a777a938a0e6f5b3a8f826a051cccefa88973daa0 [2025-03-08 05:19:59,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:19:59,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:19:59,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:19:59,773 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:19:59,774 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:19:59,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c [2025-03-08 05:20:00,844 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8e2e6b9/78ffb704dc22498589cd63b161c54a0c/FLAG8000b7b7b [2025-03-08 05:20:01,045 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:20:01,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps6-ll_valuebound20.c [2025-03-08 05:20:01,064 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8e2e6b9/78ffb704dc22498589cd63b161c54a0c/FLAG8000b7b7b [2025-03-08 05:20:01,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df8e2e6b9/78ffb704dc22498589cd63b161c54a0c [2025-03-08 05:20:01,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:20:01,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:20:01,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:20:01,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:20:01,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:20:01,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,427 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea4f648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01, skipping insertion in model container [2025-03-08 05:20:01,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:20:01,521 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/nla-digbench-scaling/ps6-ll_valuebound20.c[458,471] [2025-03-08 05:20:01,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:20:01,539 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:20:01,545 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/nla-digbench-scaling/ps6-ll_valuebound20.c[458,471] [2025-03-08 05:20:01,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:20:01,556 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:20:01,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01 WrapperNode [2025-03-08 05:20:01,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:20:01,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:20:01,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:20:01,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:20:01,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,575 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2025-03-08 05:20:01,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:20:01,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:20:01,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:20:01,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:20:01,580 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,581 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,586 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]. [2025-03-08 05:20:01,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:20:01,590 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:20:01,590 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:20:01,590 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:20:01,591 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (1/1) ... [2025-03-08 05:20:01,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:20:01,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:01,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 05:20:01,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 05:20:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:20:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-08 05:20:01,630 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-08 05:20:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:20:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:20:01,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:20:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-08 05:20:01,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-08 05:20:01,671 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:20:01,672 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:20:01,757 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-08 05:20:01,757 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:20:01,764 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:20:01,764 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:20:01,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:20:01 BoogieIcfgContainer [2025-03-08 05:20:01,765 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:20:01,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:20:01,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:20:01,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:20:01,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:20:01" (1/3) ... [2025-03-08 05:20:01,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8c3a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:20:01, skipping insertion in model container [2025-03-08 05:20:01,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:20:01" (2/3) ... [2025-03-08 05:20:01,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8c3a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:20:01, skipping insertion in model container [2025-03-08 05:20:01,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:20:01" (3/3) ... [2025-03-08 05:20:01,770 INFO L128 eAbstractionObserver]: Analyzing ICFG ps6-ll_valuebound20.c [2025-03-08 05:20:01,779 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:20:01,780 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps6-ll_valuebound20.c that has 3 procedures, 23 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:20:01,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:20:01,814 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;@141f2bd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:20:01,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:20:01,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-08 05:20:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 05:20:01,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:20:01,820 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:20:01,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:20:01,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:20:01,823 INFO L85 PathProgramCache]: Analyzing trace with hash 48082696, now seen corresponding path program 1 times [2025-03-08 05:20:01,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:20:01,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815221986] [2025-03-08 05:20:01,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:20:01,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 05:20:01,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 05:20:01,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:01,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 05:20:01,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:20:01,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815221986] [2025-03-08 05:20:01,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815221986] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:20:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922513849] [2025-03-08 05:20:01,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:01,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:01,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:01,923 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) [2025-03-08 05:20:01,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:20:01,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 05:20:01,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 05:20:01,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:01,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:01,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 05:20:01,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:20:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-08 05:20:01,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:20:01,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922513849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:20:01,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:20:01,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-08 05:20:01,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408540080] [2025-03-08 05:20:01,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:20:01,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 05:20:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:20:02,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 05:20:02,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 05:20:02,006 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 05:20:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:20:02,017 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2025-03-08 05:20:02,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 05:20:02,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2025-03-08 05:20:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:20:02,023 INFO L225 Difference]: With dead ends: 43 [2025-03-08 05:20:02,024 INFO L226 Difference]: Without dead ends: 19 [2025-03-08 05:20:02,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 05:20:02,029 INFO L435 NwaCegarLoop]: 26 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, 26 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 [2025-03-08 05:20:02,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:20:02,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-03-08 05:20:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-03-08 05:20:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 05:20:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2025-03-08 05:20:02,054 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17 [2025-03-08 05:20:02,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:20:02,054 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2025-03-08 05:20:02,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-08 05:20:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2025-03-08 05:20:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-08 05:20:02,055 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:20:02,055 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:20:02,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 05:20:02,259 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 [2025-03-08 05:20:02,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:20:02,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:20:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1497490024, now seen corresponding path program 1 times [2025-03-08 05:20:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:20:02,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451950356] [2025-03-08 05:20:02,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:02,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:20:02,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 05:20:02,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 05:20:02,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:02,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 05:20:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031064672] [2025-03-08 05:20:02,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:02,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:02,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:02,277 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) [2025-03-08 05:20:02,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:20:02,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-08 05:20:02,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-08 05:20:02,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:02,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:02,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:20:02,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:20:02,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 05:20:02,373 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:20:02,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:20:02,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451950356] [2025-03-08 05:20:02,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 05:20:02,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031064672] [2025-03-08 05:20:02,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031064672] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:20:02,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:20:02,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:20:02,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754358020] [2025-03-08 05:20:02,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:20:02,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:20:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:20:02,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:20:02,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:20:02,375 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 05:20:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:20:02,410 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2025-03-08 05:20:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:20:02,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-08 05:20:02,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:20:02,411 INFO L225 Difference]: With dead ends: 29 [2025-03-08 05:20:02,411 INFO L226 Difference]: Without dead ends: 25 [2025-03-08 05:20:02,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:20:02,412 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:20:02,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 65 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:20:02,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-03-08 05:20:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-03-08 05:20:02,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-08 05:20:02,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2025-03-08 05:20:02,416 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17 [2025-03-08 05:20:02,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:20:02,416 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2025-03-08 05:20:02,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-08 05:20:02,416 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2025-03-08 05:20:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-08 05:20:02,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:20:02,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:20:02,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 05:20:02,621 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,SelfDestructingSolverStorable1 [2025-03-08 05:20:02,621 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:20:02,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:20:02,621 INFO L85 PathProgramCache]: Analyzing trace with hash -722676116, now seen corresponding path program 1 times [2025-03-08 05:20:02,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:20:02,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130065510] [2025-03-08 05:20:02,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:02,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:20:02,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-08 05:20:02,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-08 05:20:02,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:02,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 05:20:02,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1019936867] [2025-03-08 05:20:02,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:02,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:02,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:02,659 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) [2025-03-08 05:20:02,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:20:02,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-08 05:20:02,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-08 05:20:02,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:02,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:02,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 05:20:02,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:20:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-08 05:20:02,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:20:02,802 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-08 05:20:02,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:20:02,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130065510] [2025-03-08 05:20:02,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 05:20:02,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019936867] [2025-03-08 05:20:02,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019936867] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 05:20:02,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:20:02,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2025-03-08 05:20:02,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159313108] [2025-03-08 05:20:02,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:20:02,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:20:02,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:20:02,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:20:02,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:20:02,804 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 05:20:02,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:20:02,833 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2025-03-08 05:20:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:20:02,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2025-03-08 05:20:02,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:20:02,834 INFO L225 Difference]: With dead ends: 31 [2025-03-08 05:20:02,834 INFO L226 Difference]: Without dead ends: 27 [2025-03-08 05:20:02,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:20:02,834 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:20:02,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 62 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:20:02,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-03-08 05:20:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-03-08 05:20:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-08 05:20:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2025-03-08 05:20:02,840 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 23 [2025-03-08 05:20:02,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:20:02,840 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2025-03-08 05:20:02,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-08 05:20:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2025-03-08 05:20:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-08 05:20:02,841 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:20:02,841 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:20:02,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 05:20:03,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:03,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:20:03,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:20:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1455469544, now seen corresponding path program 1 times [2025-03-08 05:20:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:20:03,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305721560] [2025-03-08 05:20:03,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:03,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:20:03,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 05:20:03,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 05:20:03,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:03,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 05:20:03,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19618075] [2025-03-08 05:20:03,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:20:03,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:03,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:03,061 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) [2025-03-08 05:20:03,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:20:03,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-08 05:20:03,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-08 05:20:03,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:20:03,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:03,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 05:20:03,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:20:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:20:03,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:20:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:20:03,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:20:03,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305721560] [2025-03-08 05:20:03,267 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 05:20:03,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19618075] [2025-03-08 05:20:03,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19618075] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:20:03,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 05:20:03,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2025-03-08 05:20:03,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748638751] [2025-03-08 05:20:03,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 05:20:03,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 05:20:03,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:20:03,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 05:20:03,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:20:03,268 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-08 05:20:03,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:20:03,357 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2025-03-08 05:20:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 05:20:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 34 [2025-03-08 05:20:03,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:20:03,358 INFO L225 Difference]: With dead ends: 41 [2025-03-08 05:20:03,358 INFO L226 Difference]: Without dead ends: 33 [2025-03-08 05:20:03,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:20:03,358 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:20:03,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 129 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:20:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2025-03-08 05:20:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2025-03-08 05:20:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-08 05:20:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2025-03-08 05:20:03,365 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 34 [2025-03-08 05:20:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:20:03,366 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2025-03-08 05:20:03,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 7 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-08 05:20:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2025-03-08 05:20:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-08 05:20:03,367 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:20:03,367 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:20:03,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:20:03,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:03,567 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:20:03,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:20:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash -431437220, now seen corresponding path program 2 times [2025-03-08 05:20:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:20:03,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926011484] [2025-03-08 05:20:03,568 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 05:20:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:20:03,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes. [2025-03-08 05:20:03,600 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 05:20:03,602 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 05:20:03,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-08 05:20:03,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145334882] [2025-03-08 05:20:03,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-08 05:20:03,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:03,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:20:03,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:20:03,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 05:20:03,636 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 52 statements into 2 equivalence classes. [2025-03-08 05:20:03,656 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-03-08 05:20:03,656 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-08 05:20:03,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:20:03,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-08 05:20:03,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:20:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-08 05:20:03,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:20:04,056 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 11 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-08 05:20:04,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:20:04,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926011484] [2025-03-08 05:20:04,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-08 05:20:04,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145334882] [2025-03-08 05:20:04,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145334882] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:20:04,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-08 05:20:04,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2025-03-08 05:20:04,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555963414] [2025-03-08 05:20:04,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-08 05:20:04,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-08 05:20:04,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:20:04,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-08 05:20:04,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2025-03-08 05:20:04,058 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-08 05:20:04,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:20:04,282 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2025-03-08 05:20:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-08 05:20:04,283 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 52 [2025-03-08 05:20:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:20:04,283 INFO L225 Difference]: With dead ends: 37 [2025-03-08 05:20:04,283 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 05:20:04,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:20:04,284 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:20:04,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 154 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:20:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 05:20:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 05:20:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 05:20:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 05:20:04,284 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2025-03-08 05:20:04,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:20:04,285 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 05:20:04,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 states have internal predecessors, (30), 13 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-08 05:20:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 05:20:04,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 05:20:04,288 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 05:20:04,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 05:20:04,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:20:04,491 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-03-08 05:20:04,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 05:20:04,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 05:20:04,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:20:04 BoogieIcfgContainer [2025-03-08 05:20:04,615 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 05:20:04,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 05:20:04,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 05:20:04,619 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 05:20:04,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:20:01" (3/4) ... [2025-03-08 05:20:04,620 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 05:20:04,624 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-08 05:20:04,624 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2025-03-08 05:20:04,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-08 05:20:04,625 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 05:20:04,627 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 05:20:04,627 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 05:20:04,686 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 05:20:04,686 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 05:20:04,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 05:20:04,687 INFO L158 Benchmark]: Toolchain (without parser) took 3264.65ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 111.8MB in the end (delta: -3.8MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2025-03-08 05:20:04,687 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:20:04,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.55ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 96.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 05:20:04,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.96ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.5MB in the end (delta: 833.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:20:04,689 INFO L158 Benchmark]: Boogie Preprocessor took 14.20ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 94.7MB in the end (delta: 842.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 05:20:04,689 INFO L158 Benchmark]: IcfgBuilder took 174.65ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 83.2MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 05:20:04,689 INFO L158 Benchmark]: TraceAbstraction took 2849.05ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 40.8MB in the end (delta: 41.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2025-03-08 05:20:04,690 INFO L158 Benchmark]: Witness Printer took 69.23ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 111.8MB in the end (delta: -71.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 05:20:04,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.55ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 96.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.96ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.5MB in the end (delta: 833.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.20ms. Allocated memory is still 142.6MB. Free memory was 95.5MB in the beginning and 94.7MB in the end (delta: 842.7kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 174.65ms. Allocated memory is still 142.6MB. Free memory was 94.7MB in the beginning and 83.2MB in the end (delta: 11.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2849.05ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 40.8MB in the end (delta: 41.5MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 69.23ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 111.8MB in the end (delta: -71.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 34 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 336 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 100 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 206 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 777 SizeOfPredicates, 7 NumberOfNonLiveVariables, 414 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 187/266 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Location Invariant Derived location invariant: (((((y + ((__int128) y * y)) == (c + ((__int128) c * y))) && ((((__int128) 2 * c) + ((__int128) c * y)) == (((__int128) 2 * y) + ((__int128) y * y)))) && ((((6 * (((((__int128) y * y) * y) * y) * y)) + (2 * ((((((__int128) y * y) * y) * y) * y) * y))) + (5 * ((((__int128) y * y) * y) * y))) == (((__int128) x * 12) + ((__int128) y * y)))) && ((((__int128) k * y) == ((__int128) y * y)) || (c < k))) RESULT: Ultimate proved your program to be correct! [2025-03-08 05:20:04,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE