/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-30.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:46:32,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:46:32,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:46:32,742 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:46:32,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:46:32,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:46:32,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:46:32,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:46:32,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:46:32,761 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:46:32,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:46:32,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:46:32,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:46:32,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:46:32,763 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:46:32,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:46:32,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:46:32,764 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:46:32,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:46:32,765 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:46:32,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:46:32,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:46:32,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:46:32,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:46:32,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:46:32,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:46:32,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:46:32,766 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:46:32,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:46:32,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:46:32,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:46:32,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:46:32,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:46:32,770 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:46:32,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:46:32,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:46:32,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:46:32,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:46:32,972 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:46:32,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-30.i [2023-12-15 20:46:34,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:46:34,308 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:46:34,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-30.i [2023-12-15 20:46:34,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/525dc5102/fc1f44bdc81d4907b0f8e99f64f820ca/FLAG81151ca18 [2023-12-15 20:46:34,331 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/525dc5102/fc1f44bdc81d4907b0f8e99f64f820ca [2023-12-15 20:46:34,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:46:34,334 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:46:34,348 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:46:34,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:46:34,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:46:34,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48aae5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34, skipping insertion in model container [2023-12-15 20:46:34,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:46:34,559 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-30.i[916,929] [2023-12-15 20:46:34,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:46:34,664 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:46:34,671 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-30.i[916,929] [2023-12-15 20:46:34,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:46:34,708 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:46:34,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34 WrapperNode [2023-12-15 20:46:34,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:46:34,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:46:34,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:46:34,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:46:34,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,767 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 260 [2023-12-15 20:46:34,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:46:34,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:46:34,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:46:34,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:46:34,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,857 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]. [2023-12-15 20:46:34,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:46:34,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:46:34,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:46:34,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:46:34,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (1/1) ... [2023-12-15 20:46:34,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:46:34,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:46:34,950 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) [2023-12-15 20:46:34,953 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 [2023-12-15 20:46:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:46:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:46:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:46:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:46:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:46:35,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:46:35,110 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:46:35,113 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:46:35,495 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:46:35,519 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:46:35,519 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:46:35,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:35 BoogieIcfgContainer [2023-12-15 20:46:35,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:46:35,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:46:35,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:46:35,525 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:46:35,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:46:34" (1/3) ... [2023-12-15 20:46:35,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d367e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:35, skipping insertion in model container [2023-12-15 20:46:35,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:34" (2/3) ... [2023-12-15 20:46:35,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d367e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:35, skipping insertion in model container [2023-12-15 20:46:35,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:35" (3/3) ... [2023-12-15 20:46:35,527 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-30.i [2023-12-15 20:46:35,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:46:35,542 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:46:35,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:46:35,584 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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;@553f1c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:46:35,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:46:35,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 65 states have (on average 1.5384615384615385) internal successors, (100), 66 states have internal predecessors, (100), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-15 20:46:35,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-15 20:46:35,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:46:35,606 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:46:35,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:46:35,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:46:35,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1092041652, now seen corresponding path program 1 times [2023-12-15 20:46:35,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:46:35,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045272911] [2023-12-15 20:46:35,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:35,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:46:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:46:35,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:46:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045272911] [2023-12-15 20:46:35,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:46:35,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830433388] [2023-12-15 20:46:35,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:35,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:46:35,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:46:35,890 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) [2023-12-15 20:46:35,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:46:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:46:36,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:46:36,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:46:36,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2023-12-15 20:46:36,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:46:36,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830433388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:46:36,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:46:36,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:46:36,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145162593] [2023-12-15 20:46:36,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:46:36,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:46:36,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:46:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:46:36,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:46:36,064 INFO L87 Difference]: Start difference. First operand has 92 states, 65 states have (on average 1.5384615384615385) internal successors, (100), 66 states have internal predecessors, (100), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-15 20:46:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:46:36,111 INFO L93 Difference]: Finished difference Result 179 states and 312 transitions. [2023-12-15 20:46:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:46:36,113 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 161 [2023-12-15 20:46:36,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:46:36,119 INFO L225 Difference]: With dead ends: 179 [2023-12-15 20:46:36,119 INFO L226 Difference]: Without dead ends: 86 [2023-12-15 20:46:36,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:46:36,126 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:46:36,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:46:36,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-15 20:46:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-15 20:46:36,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 60 states have internal predecessors, (86), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-15 20:46:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 134 transitions. [2023-12-15 20:46:36,167 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 134 transitions. Word has length 161 [2023-12-15 20:46:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:46:36,167 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 134 transitions. [2023-12-15 20:46:36,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-15 20:46:36,168 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 134 transitions. [2023-12-15 20:46:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-15 20:46:36,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:46:36,177 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:46:36,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 20:46:36,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 20:46:36,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:46:36,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:46:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash -783972344, now seen corresponding path program 1 times [2023-12-15 20:46:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:46:36,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763469087] [2023-12-15 20:46:36,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:46:36,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:46:36,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718075982] [2023-12-15 20:46:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:36,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:46:36,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:46:36,496 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) [2023-12-15 20:46:36,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:46:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:46:36,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 20:46:36,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:46:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-12-15 20:46:36,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:46:36,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:46:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763469087] [2023-12-15 20:46:36,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:46:36,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718075982] [2023-12-15 20:46:36,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718075982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:46:36,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:46:36,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:46:36,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747346898] [2023-12-15 20:46:36,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:46:36,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 20:46:36,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:46:36,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 20:46:36,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 20:46:36,881 INFO L87 Difference]: Start difference. First operand 86 states and 134 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-15 20:46:37,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:46:37,036 INFO L93 Difference]: Finished difference Result 288 states and 448 transitions. [2023-12-15 20:46:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 20:46:37,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 161 [2023-12-15 20:46:37,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:46:37,039 INFO L225 Difference]: With dead ends: 288 [2023-12-15 20:46:37,039 INFO L226 Difference]: Without dead ends: 203 [2023-12-15 20:46:37,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:46:37,041 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 140 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:46:37,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 399 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:46:37,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-15 20:46:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 169. [2023-12-15 20:46:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 118 states have internal predecessors, (167), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-15 20:46:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 263 transitions. [2023-12-15 20:46:37,058 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 263 transitions. Word has length 161 [2023-12-15 20:46:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:46:37,058 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 263 transitions. [2023-12-15 20:46:37,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2023-12-15 20:46:37,058 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 263 transitions. [2023-12-15 20:46:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-15 20:46:37,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:46:37,060 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:46:37,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:46:37,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 20:46:37,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:46:37,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:46:37,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1445346197, now seen corresponding path program 1 times [2023-12-15 20:46:37,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:46:37,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978247777] [2023-12-15 20:46:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:37,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:46:37,317 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:46:37,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791483109] [2023-12-15 20:46:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:37,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:46:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:46:37,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:46:37,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:46:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:46:37,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-15 20:46:37,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:46:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 503 proven. 21 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-15 20:46:37,850 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:46:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 48 proven. 21 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-15 20:46:38,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:46:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978247777] [2023-12-15 20:46:38,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:46:38,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791483109] [2023-12-15 20:46:38,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791483109] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:46:38,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:46:38,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2023-12-15 20:46:38,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925716327] [2023-12-15 20:46:38,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:46:38,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-15 20:46:38,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:46:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-15 20:46:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-12-15 20:46:38,071 INFO L87 Difference]: Start difference. First operand 169 states and 263 transitions. Second operand has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-12-15 20:46:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:46:39,619 INFO L93 Difference]: Finished difference Result 757 states and 1128 transitions. [2023-12-15 20:46:39,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-15 20:46:39,620 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 162 [2023-12-15 20:46:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:46:39,623 INFO L225 Difference]: With dead ends: 757 [2023-12-15 20:46:39,623 INFO L226 Difference]: Without dead ends: 672 [2023-12-15 20:46:39,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 314 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=748, Invalid=1904, Unknown=0, NotChecked=0, Total=2652 [2023-12-15 20:46:39,625 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 1269 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 20:46:39,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 2075 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 20:46:39,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-12-15 20:46:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 324. [2023-12-15 20:46:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 235 states have (on average 1.4) internal successors, (329), 237 states have internal predecessors, (329), 80 states have call successors, (80), 8 states have call predecessors, (80), 8 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-15 20:46:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 489 transitions. [2023-12-15 20:46:39,659 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 489 transitions. Word has length 162 [2023-12-15 20:46:39,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:46:39,660 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 489 transitions. [2023-12-15 20:46:39,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.882352941176471) internal successors, (83), 17 states have internal predecessors, (83), 4 states have call successors, (48), 3 states have call predecessors, (48), 5 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2023-12-15 20:46:39,660 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 489 transitions. [2023-12-15 20:46:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-15 20:46:39,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:46:39,661 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:46:39,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 20:46:39,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:46:39,867 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:46:39,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:46:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash 764583005, now seen corresponding path program 1 times [2023-12-15 20:46:39,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:46:39,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198914021] [2023-12-15 20:46:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:46:39,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:46:39,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1683783916] [2023-12-15 20:46:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:46:39,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:46:39,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:46:39,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:46:39,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:46:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:46:40,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 54 conjunts are in the unsatisfiable core [2023-12-15 20:46:40,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:46:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 692 proven. 90 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2023-12-15 20:46:42,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:46:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 183 proven. 75 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2023-12-15 20:46:50,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:46:50,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198914021] [2023-12-15 20:46:50,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:46:50,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683783916] [2023-12-15 20:46:50,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683783916] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:46:50,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:46:50,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 21] total 44 [2023-12-15 20:46:50,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895886259] [2023-12-15 20:46:50,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:46:50,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-15 20:46:50,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:46:50,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-15 20:46:50,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1486, Unknown=0, NotChecked=0, Total=1892 [2023-12-15 20:46:50,053 INFO L87 Difference]: Start difference. First operand 324 states and 489 transitions. Second operand has 44 states, 42 states have (on average 2.7142857142857144) internal successors, (114), 40 states have internal predecessors, (114), 10 states have call successors, (48), 6 states have call predecessors, (48), 12 states have return successors, (48), 12 states have call predecessors, (48), 10 states have call successors, (48) Received shutdown request... [2023-12-15 20:47:42,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 368 states. [2023-12-15 20:47:42,128 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:47:42,128 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:47:42,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 392 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71702 ImplicationChecksByTransitivity, 46.4s TimeCoverageRelationStatistics Valid=29451, Invalid=125391, Unknown=0, NotChecked=0, Total=154842 [2023-12-15 20:47:42,145 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 5718 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 3287 mSolverCounterSat, 2478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5748 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 5765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2478 IncrementalHoareTripleChecker+Valid, 3287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-15 20:47:42,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5748 Valid, 2200 Invalid, 5765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2478 Valid, 3287 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-15 20:47:42,150 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:47:42,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-15 20:47:42,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:47:42,356 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (324states) and FLOYD_HOARE automaton (currently 368 states, 44 states before enhancement),while ReachableStatesComputation was computing reachable states (4267 states constructed, input type IntersectNwa). [2023-12-15 20:47:42,390 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-15 20:47:42,392 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:47:42,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:47:42 BoogieIcfgContainer [2023-12-15 20:47:42,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:47:42,394 INFO L158 Benchmark]: Toolchain (without parser) took 68059.51ms. Allocated memory was 228.6MB in the beginning and 728.8MB in the end (delta: 500.2MB). Free memory was 163.0MB in the beginning and 656.0MB in the end (delta: -493.0MB). Peak memory consumption was 101.9MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,394 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 228.6MB. Free memory is still 175.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:47:42,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.04ms. Allocated memory is still 228.6MB. Free memory was 163.0MB in the beginning and 145.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.50ms. Allocated memory is still 228.6MB. Free memory was 145.7MB in the beginning and 139.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,406 INFO L158 Benchmark]: Boogie Preprocessor took 119.91ms. Allocated memory was 228.6MB in the beginning and 283.1MB in the end (delta: 54.5MB). Free memory was 139.9MB in the beginning and 241.8MB in the end (delta: -101.8MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,407 INFO L158 Benchmark]: RCFGBuilder took 620.27ms. Allocated memory is still 283.1MB. Free memory was 241.7MB in the beginning and 213.7MB in the end (delta: 28.0MB). Peak memory consumption was 33.2MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,407 INFO L158 Benchmark]: TraceAbstraction took 66871.49ms. Allocated memory was 283.1MB in the beginning and 728.8MB in the end (delta: 445.6MB). Free memory was 213.2MB in the beginning and 656.0MB in the end (delta: -442.8MB). Peak memory consumption was 96.7MB. Max. memory is 8.0GB. [2023-12-15 20:47:42,408 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 228.6MB. Free memory is still 175.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.04ms. Allocated memory is still 228.6MB. Free memory was 163.0MB in the beginning and 145.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.50ms. Allocated memory is still 228.6MB. Free memory was 145.7MB in the beginning and 139.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 119.91ms. Allocated memory was 228.6MB in the beginning and 283.1MB in the end (delta: 54.5MB). Free memory was 139.9MB in the beginning and 241.8MB in the end (delta: -101.8MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * RCFGBuilder took 620.27ms. Allocated memory is still 283.1MB. Free memory was 241.7MB in the beginning and 213.7MB in the end (delta: 28.0MB). Peak memory consumption was 33.2MB. Max. memory is 8.0GB. * TraceAbstraction took 66871.49ms. Allocated memory was 283.1MB in the beginning and 728.8MB in the end (delta: 445.6MB). Free memory was 213.2MB in the beginning and 656.0MB in the end (delta: -442.8MB). Peak memory consumption was 96.7MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was constructing difference of abstraction (324states) and FLOYD_HOARE automaton (currently 368 states, 44 states before enhancement),while ReachableStatesComputation was computing reachable states (4267 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.8s, OverallIterations: 4, TraceHistogramMax: 24, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 53.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7178 SdHoareTripleChecker+Valid, 7.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7127 mSDsluCounter, 4805 SdHoareTripleChecker+Invalid, 6.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4248 mSDsCounter, 3091 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4335 IncrementalHoareTripleChecker+Invalid, 7426 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3091 mSolverCounterUnsat, 557 mSDtfsCounter, 4335 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1410 GetRequests, 964 SyntacticMatches, 1 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72518 ImplicationChecksByTransitivity, 47.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=3, InterpolantAutomatonStates: 50, 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, 3 MinimizatonAttempts, 382 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 808 NumberOfCodeBlocks, 808 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 966 ConstructedInterpolants, 0 QuantifiedInterpolants, 9811 SizeOfPredicates, 34 NumberOfNonLiveVariables, 1649 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6417/6624 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: Timeout Completed graceful shutdown