./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.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 bf188cc293474c9f6aa32f358cba173af59946707dd6a06eac63218abddc632b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:44:42,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:44:42,620 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:44:42,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:44:42,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:44:42,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:44:42,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:44:42,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:44:42,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:44:42,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:44:42,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:44:42,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:44:42,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:44:42,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:44:42,665 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:44:42,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:44:42,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:44:42,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:44:42,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:44:42,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:44:42,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:44:42,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:44:42,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:44:42,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:44:42,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:44:42,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:44:42,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:44:42,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:42,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:44:42,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:44:42,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:44:42,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:44:42,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf188cc293474c9f6aa32f358cba173af59946707dd6a06eac63218abddc632b [2024-10-14 11:44:42,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:44:42,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:44:42,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:44:42,909 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:44:42,909 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:44:42,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:44,178 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:44:44,351 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:44:44,352 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:44,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08c89ed0/800c9f1f1f3c4599a0af236deceb24c5/FLAGefe0e0e34 [2024-10-14 11:44:44,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08c89ed0/800c9f1f1f3c4599a0af236deceb24c5 [2024-10-14 11:44:44,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:44:44,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:44:44,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:44,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:44:44,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:44:44,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec8486a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44, skipping insertion in model container [2024-10-14 11:44:44,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:44:44,520 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i[915,928] [2024-10-14 11:44:44,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:44,580 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:44:44,592 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i[915,928] [2024-10-14 11:44:44,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:44,634 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:44:44,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44 WrapperNode [2024-10-14 11:44:44,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:44,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:44,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:44:44,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:44:44,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,677 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 127 [2024-10-14 11:44:44,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:44,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:44:44,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:44:44,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:44:44,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,725 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]. [2024-10-14 11:44:44,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,749 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:44:44,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:44:44,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:44:44,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:44:44,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (1/1) ... [2024-10-14 11:44:44,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:44,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:44:44,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:44:44,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:44:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:44:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:44:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:44:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:44:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:44:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:44:44,938 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:44:44,940 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:44:45,183 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-10-14 11:44:45,183 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:44:45,226 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:44:45,226 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:44:45,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:45 BoogieIcfgContainer [2024-10-14 11:44:45,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:44:45,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:44:45,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:44:45,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:44:45,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:44" (1/3) ... [2024-10-14 11:44:45,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6496b6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:45, skipping insertion in model container [2024-10-14 11:44:45,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:44" (2/3) ... [2024-10-14 11:44:45,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6496b6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:45, skipping insertion in model container [2024-10-14 11:44:45,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:45" (3/3) ... [2024-10-14 11:44:45,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:45,249 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:44:45,249 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:44:45,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:44:45,301 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;@1fdfaab8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:44:45,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:44:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 36 states have internal predecessors, (53), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 11:44:45,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 11:44:45,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:45,315 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:45,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:45,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:45,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1273786392, now seen corresponding path program 1 times [2024-10-14 11:44:45,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:45,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049048659] [2024-10-14 11:44:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:44:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:44:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:44:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:44:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:44:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:44:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 11:44:45,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:45,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049048659] [2024-10-14 11:44:45,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049048659] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:45,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:45,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:44:45,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019116206] [2024-10-14 11:44:45,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:45,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:44:45,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:45,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:44:45,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:45,602 INFO L87 Difference]: Start difference. First operand has 49 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 36 states have internal predecessors, (53), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-14 11:44:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:45,649 INFO L93 Difference]: Finished difference Result 95 states and 159 transitions. [2024-10-14 11:44:45,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:44:45,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2024-10-14 11:44:45,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:45,659 INFO L225 Difference]: With dead ends: 95 [2024-10-14 11:44:45,660 INFO L226 Difference]: Without dead ends: 47 [2024-10-14 11:44:45,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:45,668 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:45,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:44:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-14 11:44:45,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-10-14 11:44:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 11:44:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2024-10-14 11:44:45,703 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 72 [2024-10-14 11:44:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:45,703 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2024-10-14 11:44:45,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-14 11:44:45,703 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2024-10-14 11:44:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 11:44:45,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:45,706 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:45,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:44:45,707 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:45,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:45,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1182797354, now seen corresponding path program 1 times [2024-10-14 11:44:45,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:45,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837834328] [2024-10-14 11:44:45,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:45,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:44:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:44:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:44:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:44:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:44:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:44:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 11:44:46,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:46,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837834328] [2024-10-14 11:44:46,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837834328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:46,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:46,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:44:46,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677744673] [2024-10-14 11:44:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:46,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:44:46,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:46,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:44:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:44:46,471 INFO L87 Difference]: Start difference. First operand 47 states and 70 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:46,665 INFO L93 Difference]: Finished difference Result 141 states and 206 transitions. [2024-10-14 11:44:46,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:44:46,666 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2024-10-14 11:44:46,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:46,668 INFO L225 Difference]: With dead ends: 141 [2024-10-14 11:44:46,668 INFO L226 Difference]: Without dead ends: 95 [2024-10-14 11:44:46,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:44:46,671 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:46,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 212 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:46,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-14 11:44:46,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2024-10-14 11:44:46,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 58 states have internal predecessors, (79), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 11:44:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 117 transitions. [2024-10-14 11:44:46,695 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 117 transitions. Word has length 72 [2024-10-14 11:44:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:46,695 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 117 transitions. [2024-10-14 11:44:46,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 117 transitions. [2024-10-14 11:44:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 11:44:46,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:46,698 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:46,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:44:46,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:46,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:46,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1337162580, now seen corresponding path program 1 times [2024-10-14 11:44:46,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:46,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377177742] [2024-10-14 11:44:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:46,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:44:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:44:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:44:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:44:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:44:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:44:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 11:44:46,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:46,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377177742] [2024-10-14 11:44:46,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377177742] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:46,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:46,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:44:46,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83040574] [2024-10-14 11:44:46,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:46,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:44:46,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:46,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:44:46,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:44:46,998 INFO L87 Difference]: Start difference. First operand 79 states and 117 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:47,142 INFO L93 Difference]: Finished difference Result 175 states and 255 transitions. [2024-10-14 11:44:47,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:44:47,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2024-10-14 11:44:47,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:47,146 INFO L225 Difference]: With dead ends: 175 [2024-10-14 11:44:47,146 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 11:44:47,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:44:47,150 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 53 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:47,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 309 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:47,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 11:44:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2024-10-14 11:44:47,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 60 states have internal predecessors, (81), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 11:44:47,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions. [2024-10-14 11:44:47,172 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 72 [2024-10-14 11:44:47,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:47,173 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions. [2024-10-14 11:44:47,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions. [2024-10-14 11:44:47,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 11:44:47,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:47,176 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:47,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:44:47,177 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:47,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:47,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1525849074, now seen corresponding path program 1 times [2024-10-14 11:44:47,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:47,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327251339] [2024-10-14 11:44:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:47,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:44:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:44:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:44:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:44:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:44:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:44:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 11:44:47,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327251339] [2024-10-14 11:44:47,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327251339] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:47,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:47,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:44:47,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767685320] [2024-10-14 11:44:47,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:47,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:44:47,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:47,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:44:47,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:44:47,601 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:47,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:47,788 INFO L93 Difference]: Finished difference Result 177 states and 256 transitions. [2024-10-14 11:44:47,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 11:44:47,789 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73 [2024-10-14 11:44:47,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:47,791 INFO L225 Difference]: With dead ends: 177 [2024-10-14 11:44:47,791 INFO L226 Difference]: Without dead ends: 97 [2024-10-14 11:44:47,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:44:47,793 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 82 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:47,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 232 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:47,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-14 11:44:47,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 79. [2024-10-14 11:44:47,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 57 states have (on average 1.368421052631579) internal successors, (78), 58 states have internal predecessors, (78), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 11:44:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 116 transitions. [2024-10-14 11:44:47,813 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 116 transitions. Word has length 73 [2024-10-14 11:44:47,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:47,814 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 116 transitions. [2024-10-14 11:44:47,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:47,814 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 116 transitions. [2024-10-14 11:44:47,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 11:44:47,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:47,815 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:47,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:44:47,816 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:47,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash 716502448, now seen corresponding path program 1 times [2024-10-14 11:44:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:47,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915795099] [2024-10-14 11:44:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:47,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:44:48,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 11:44:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 11:44:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 11:44:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 11:44:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 11:44:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 11:44:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 11:44:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 11:44:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 11:44:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 11:44:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 11:44:48,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:48,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915795099] [2024-10-14 11:44:48,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915795099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:48,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:48,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:44:48,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938512648] [2024-10-14 11:44:48,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:48,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:44:48,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:48,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:44:48,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:44:48,088 INFO L87 Difference]: Start difference. First operand 79 states and 116 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:48,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:48,308 INFO L93 Difference]: Finished difference Result 173 states and 250 transitions. [2024-10-14 11:44:48,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 11:44:48,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 73 [2024-10-14 11:44:48,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:48,310 INFO L225 Difference]: With dead ends: 173 [2024-10-14 11:44:48,311 INFO L226 Difference]: Without dead ends: 95 [2024-10-14 11:44:48,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:44:48,315 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 38 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:48,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 421 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:48,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-14 11:44:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 77. [2024-10-14 11:44:48,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 56 states have internal predecessors, (75), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 11:44:48,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2024-10-14 11:44:48,332 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 73 [2024-10-14 11:44:48,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:48,333 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2024-10-14 11:44:48,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2024-10-14 11:44:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 11:44:48,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:48,335 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:48,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:44:48,336 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:48,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:48,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1947958031, now seen corresponding path program 1 times [2024-10-14 11:44:48,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:48,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281307622] [2024-10-14 11:44:48,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:48,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 11:44:48,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932075280] [2024-10-14 11:44:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:48,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:44:48,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:44:48,355 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) [2024-10-14 11:44:48,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 11:44:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:48,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 11:44:48,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:44:48,742 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 11:44:48,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:44:48,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:44:48,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281307622] [2024-10-14 11:44:48,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 11:44:48,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932075280] [2024-10-14 11:44:48,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932075280] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:44:48,879 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 11:44:48,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 11:44:48,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916749456] [2024-10-14 11:44:48,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 11:44:48,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 11:44:48,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:44:48,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 11:44:48,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=79, Unknown=1, NotChecked=0, Total=110 [2024-10-14 11:44:48,881 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-14 11:44:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:49,129 INFO L93 Difference]: Finished difference Result 212 states and 304 transitions. [2024-10-14 11:44:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 11:44:49,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2024-10-14 11:44:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:49,132 INFO L225 Difference]: With dead ends: 212 [2024-10-14 11:44:49,132 INFO L226 Difference]: Without dead ends: 136 [2024-10-14 11:44:49,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=239, Unknown=1, NotChecked=0, Total=342 [2024-10-14 11:44:49,133 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 58 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 32 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:49,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 320 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 160 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:44:49,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-10-14 11:44:49,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 115. [2024-10-14 11:44:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 79 states have (on average 1.3164556962025316) internal successors, (104), 80 states have internal predecessors, (104), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-14 11:44:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2024-10-14 11:44:49,169 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 74 [2024-10-14 11:44:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:49,169 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2024-10-14 11:44:49,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-14 11:44:49,169 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2024-10-14 11:44:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-14 11:44:49,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:49,170 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:49,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 11:44:49,376 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,SelfDestructingSolverStorable5 [2024-10-14 11:44:49,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:49,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1666950895, now seen corresponding path program 1 times [2024-10-14 11:44:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:44:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758415679] [2024-10-14 11:44:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:44:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 11:44:49,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [928109854] [2024-10-14 11:44:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:49,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:44:49,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:44:49,414 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) [2024-10-14 11:44:49,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 11:44:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:44:49,471 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 11:44:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 11:44:49,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 11:44:49,541 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 11:44:49,542 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 11:44:49,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 11:44:49,744 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,SelfDestructingSolverStorable6 [2024-10-14 11:44:49,748 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:49,805 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 11:44:49,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:44:49 BoogieIcfgContainer [2024-10-14 11:44:49,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 11:44:49,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 11:44:49,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 11:44:49,809 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 11:44:49,809 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:45" (3/4) ... [2024-10-14 11:44:49,811 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 11:44:49,812 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 11:44:49,813 INFO L158 Benchmark]: Toolchain (without parser) took 5439.30ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 116.0MB in the beginning and 185.9MB in the end (delta: -69.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:44:49,816 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:44:49,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.34ms. Allocated memory is still 184.5MB. Free memory was 115.8MB in the beginning and 102.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 11:44:49,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.63ms. Allocated memory is still 184.5MB. Free memory was 102.7MB in the beginning and 99.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 11:44:49,817 INFO L158 Benchmark]: Boogie Preprocessor took 84.46ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 155.5MB in the end (delta: -55.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-10-14 11:44:49,817 INFO L158 Benchmark]: RCFGBuilder took 447.39ms. Allocated memory is still 184.5MB. Free memory was 155.5MB in the beginning and 134.7MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-14 11:44:49,817 INFO L158 Benchmark]: TraceAbstraction took 4579.76ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 134.1MB in the beginning and 185.9MB in the end (delta: -51.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-10-14 11:44:49,818 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 241.2MB. Free memory is still 185.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 11:44:49,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.34ms. Allocated memory is still 184.5MB. Free memory was 115.8MB in the beginning and 102.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.63ms. Allocated memory is still 184.5MB. Free memory was 102.7MB in the beginning and 99.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.46ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 155.5MB in the end (delta: -55.6MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * RCFGBuilder took 447.39ms. Allocated memory is still 184.5MB. Free memory was 155.5MB in the beginning and 134.7MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4579.76ms. Allocated memory was 184.5MB in the beginning and 241.2MB in the end (delta: 56.6MB). Free memory was 134.1MB in the beginning and 185.9MB in the end (delta: -51.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 241.2MB. Free memory is still 185.9MB. There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 87. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 200; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = 1107940323; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 16; [L28] unsigned char var_1_9 = 16; [L29] unsigned short int var_1_10 = 4; [L30] double var_1_11 = 1000000.5; [L31] double var_1_12 = 1.25; [L32] signed long int last_1_var_1_1 = 200; [L33] unsigned char last_1_var_1_8 = 16; [L34] unsigned short int last_1_var_1_10 = 4; [L91] isInitial = 1 [L92] FCALL initially() [L93] COND TRUE 1 [L94] CALL updateLastVariables() [L82] last_1_var_1_1 = var_1_1 [L83] last_1_var_1_8 = var_1_8 [L84] last_1_var_1_10 = var_1_10 [L94] RET updateLastVariables() [L95] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L64] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L65] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L65] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1107940323, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L66] var_1_3 = __VERIFIER_nondet_long() [L67] CALL assume_abort_if_not(var_1_3 >= 1073741822) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L67] RET assume_abort_if_not(var_1_3 >= 1073741822) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L68] CALL assume_abort_if_not(var_1_3 <= 2147483646) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L68] RET assume_abort_if_not(var_1_3 <= 2147483646) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=0, var_1_7=0, var_1_8=16, var_1_9=16] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16] [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_7=0, var_1_8=16, var_1_9=16] [L71] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L71] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=0, var_1_8=16, var_1_9=16] [L72] var_1_7 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16] [L73] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_8=16, var_1_9=16] [L74] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L74] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=16] [L75] var_1_9 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16] [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16] [L77] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L77] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_12=5/4, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L78] var_1_12 = __VERIFIER_nondet_double() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L95] RET updateVariables() [L96] CALL step() [L38] signed long int stepLocal_2 = last_1_var_1_8; [L39] signed long int stepLocal_1 = var_1_3 * last_1_var_1_8; VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_1=17179869152, stepLocal_2=16, var_1_10=4, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L40] COND TRUE stepLocal_1 >= last_1_var_1_1 [L41] var_1_10 = (2 + var_1_9) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L49] signed long int stepLocal_0 = last_1_var_1_10 / var_1_3; VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_0=0, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L50] COND FALSE !(stepLocal_0 >= (500 - last_1_var_1_10)) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=200, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L53] COND TRUE \read(var_1_2) [L54] var_1_1 = ((var_1_3 - var_1_10) - var_1_8) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, stepLocal_2=16, var_1_10=2, var_1_11=2000001/2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L60] var_1_11 = var_1_12 [L96] RET step() [L97] CALL, EXPR property() [L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L87] EXPR ((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L87] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1)))) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L87-L88] return (((var_1_2 ? (var_1_1 == ((signed long int) ((var_1_3 - var_1_10) - var_1_8))) : ((var_1_6 && var_1_7) ? (var_1_1 == ((signed long int) var_1_10)) : 1)) && (((last_1_var_1_10 / var_1_3) >= (500 - last_1_var_1_10)) ? (var_1_8 == ((unsigned char) var_1_9)) : 1)) && (((var_1_3 * last_1_var_1_8) >= last_1_var_1_1) ? (var_1_10 == ((unsigned short int) (2 + var_1_9))) : ((last_1_var_1_8 == (last_1_var_1_8 ^ last_1_var_1_1)) ? (var_1_10 == ((unsigned short int) (var_1_9 + ((((last_1_var_1_1) < (4)) ? (last_1_var_1_1) : (4)))))) : (var_1_10 == ((unsigned short int) last_1_var_1_1))))) && (var_1_11 == ((double) var_1_12)) ; [L97] RET, EXPR property() [L97] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=4, last_1_var_1_1=200, last_1_var_1_8=16, var_1_10=2, var_1_11=2, var_1_12=2, var_1_1=1073741804, var_1_2=1, var_1_3=1073741822, var_1_6=1, var_1_7=1, var_1_8=16, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 308 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 308 mSDsluCounter, 1560 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1126 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 519 IncrementalHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 434 mSDtfsCounter, 519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 297 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 89 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 430 ConstructedInterpolants, 1 QuantifiedInterpolants, 1249 SizeOfPredicates, 3 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1296/1320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-14 11:44:49,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 bf188cc293474c9f6aa32f358cba173af59946707dd6a06eac63218abddc632b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:44:51,848 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:44:51,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 11:44:51,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:44:51,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:44:51,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:44:51,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:44:51,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:44:51,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:44:51,953 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:44:51,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:44:51,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:44:51,954 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:44:51,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:44:51,956 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:44:51,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:44:51,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:44:51,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:44:51,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:44:51,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:44:51,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:44:51,961 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:44:51,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:44:51,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:51,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 11:44:51,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:44:51,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:44:51,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:44:51,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:44:51,965 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 11:44:51,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf188cc293474c9f6aa32f358cba173af59946707dd6a06eac63218abddc632b [2024-10-14 11:44:52,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:44:52,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:44:52,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:44:52,294 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:44:52,295 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:44:52,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:53,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:44:53,852 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:44:53,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:53,862 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d285178c/fd97dd098389499d8a2fcf0ac66781c4/FLAGb34c91b9f [2024-10-14 11:44:54,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d285178c/fd97dd098389499d8a2fcf0ac66781c4 [2024-10-14 11:44:54,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:44:54,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:44:54,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:54,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:44:54,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:44:54,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cf8f3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54, skipping insertion in model container [2024-10-14 11:44:54,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,297 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:44:54,425 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i[915,928] [2024-10-14 11:44:54,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:54,486 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:44:54,498 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-31.i[915,928] [2024-10-14 11:44:54,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:44:54,541 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:44:54,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54 WrapperNode [2024-10-14 11:44:54,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:44:54,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:54,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:44:54,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:44:54,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,589 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2024-10-14 11:44:54,591 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:44:54,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:44:54,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:44:54,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:44:54,600 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,621 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]. [2024-10-14 11:44:54,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:44:54,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:44:54,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:44:54,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:44:54,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (1/1) ... [2024-10-14 11:44:54,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:44:54,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:44:54,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:44:54,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:44:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:44:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 11:44:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:44:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:44:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:44:54,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:44:54,786 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:44:54,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:44:55,061 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 11:44:55,063 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:44:55,122 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:44:55,122 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:44:55,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:55 BoogieIcfgContainer [2024-10-14 11:44:55,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:44:55,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:44:55,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:44:55,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:44:55,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:44:54" (1/3) ... [2024-10-14 11:44:55,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a5194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:55, skipping insertion in model container [2024-10-14 11:44:55,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:44:54" (2/3) ... [2024-10-14 11:44:55,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66a5194a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:44:55, skipping insertion in model container [2024-10-14 11:44:55,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:44:55" (3/3) ... [2024-10-14 11:44:55,131 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-31.i [2024-10-14 11:44:55,147 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:44:55,147 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:44:55,206 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:44:55,213 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;@36833dcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:44:55,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:44:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 11:44:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 11:44:55,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:55,229 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:55,230 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:55,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1467516349, now seen corresponding path program 1 times [2024-10-14 11:44:55,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:44:55,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501563816] [2024-10-14 11:44:55,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:55,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:44:55,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:44:55,249 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:44:55,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-14 11:44:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 11:44:55,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:44:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-10-14 11:44:55,415 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:44:55,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:44:55,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501563816] [2024-10-14 11:44:55,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501563816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:44:55,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:44:55,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:44:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035515205] [2024-10-14 11:44:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:44:55,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:44:55,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-14 11:44:55,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:44:55,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:55,450 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:55,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:44:55,501 INFO L93 Difference]: Finished difference Result 69 states and 117 transitions. [2024-10-14 11:44:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:44:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 70 [2024-10-14 11:44:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:44:55,512 INFO L225 Difference]: With dead ends: 69 [2024-10-14 11:44:55,512 INFO L226 Difference]: Without dead ends: 34 [2024-10-14 11:44:55,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:44:55,517 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:44:55,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:44:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-14 11:44:55,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-14 11:44:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 11:44:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2024-10-14 11:44:55,545 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 70 [2024-10-14 11:44:55,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:44:55,545 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2024-10-14 11:44:55,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-10-14 11:44:55,546 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2024-10-14 11:44:55,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 11:44:55,547 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:44:55,548 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:44:55,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-14 11:44:55,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:44:55,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:44:55,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:44:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1542214529, now seen corresponding path program 1 times [2024-10-14 11:44:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 11:44:55,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619723351] [2024-10-14 11:44:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:55,754 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-14 11:44:55,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 11:44:55,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-14 11:44:55,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-14 11:44:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:55,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 11:44:55,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:44:57,126 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 11:44:57,126 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:44:59,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-14 11:44:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619723351] [2024-10-14 11:44:59,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [619723351] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:44:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc5 [1637022162] [2024-10-14 11:44:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:44:59,676 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-10-14 11:44:59,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-10-14 11:44:59,679 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-14 11:44:59,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-10-14 11:44:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:44:59,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-10-14 11:44:59,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:45:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 78 proven. 24 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-14 11:45:01,636 INFO L311 TraceCheckSpWp]: Computing backward predicates...