/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:51:28,664 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:51:28,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:51:28,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:51:28,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:51:28,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:51:28,760 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:51:28,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:51:28,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:51:28,765 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:51:28,765 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:51:28,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:51:28,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:51:28,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:51:28,767 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:51:28,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:51:28,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:51:28,768 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:51:28,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:51:28,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:51:28,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:51:28,770 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:51:28,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:51:28,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:51:28,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:51:28,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:51:28,773 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:51:28,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:51:28,773 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:51:28,773 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:51:28,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:51:28,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:51:28,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:51:29,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:51:29,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:51:29,003 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:51:29,003 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:51:29,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-89.i [2023-12-20 22:51:30,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:51:30,281 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:51:30,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-89.i [2023-12-20 22:51:30,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64429f640/de2d063e66274f909642a16d2ea2a3ae/FLAGd67d2972c [2023-12-20 22:51:30,299 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64429f640/de2d063e66274f909642a16d2ea2a3ae [2023-12-20 22:51:30,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:51:30,302 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:51:30,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:51:30,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:51:30,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:51:30,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e50be56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30, skipping insertion in model container [2023-12-20 22:51:30,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:51:30,464 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-while_file-89.i[916,929] [2023-12-20 22:51:30,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:51:30,576 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:51:30,585 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-while_file-89.i[916,929] [2023-12-20 22:51:30,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:51:30,649 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:51:30,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30 WrapperNode [2023-12-20 22:51:30,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:51:30,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:51:30,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:51:30,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:51:30,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,713 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 231 [2023-12-20 22:51:30,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:51:30,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:51:30,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:51:30,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:51:30,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,763 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]. [2023-12-20 22:51:30,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:51:30,800 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:51:30,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:51:30,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:51:30,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (1/1) ... [2023-12-20 22:51:30,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:51:30,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:30,830 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) [2023-12-20 22:51:30,832 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 [2023-12-20 22:51:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:51:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:51:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:51:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:51:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:51:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:51:31,032 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:51:31,041 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:51:31,461 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:51:31,532 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:51:31,532 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:51:31,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:51:31 BoogieIcfgContainer [2023-12-20 22:51:31,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:51:31,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:51:31,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:51:31,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:51:31,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:51:30" (1/3) ... [2023-12-20 22:51:31,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630a2d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:51:31, skipping insertion in model container [2023-12-20 22:51:31,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:51:30" (2/3) ... [2023-12-20 22:51:31,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630a2d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:51:31, skipping insertion in model container [2023-12-20 22:51:31,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:51:31" (3/3) ... [2023-12-20 22:51:31,538 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-89.i [2023-12-20 22:51:31,550 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:51:31,550 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:51:31,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:51:31,596 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;@32948383, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:51:31,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:51:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 22:51:31,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 22:51:31,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:31,619 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:31,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:31,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -692932987, now seen corresponding path program 1 times [2023-12-20 22:51:31,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:31,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858904679] [2023-12-20 22:51:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:31,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:31,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858904679] [2023-12-20 22:51:31,837 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 22:51:31,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494741612] [2023-12-20 22:51:31,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:31,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:31,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:31,840 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) [2023-12-20 22:51:31,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 22:51:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:32,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 22:51:32,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-12-20 22:51:32,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:51:32,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494741612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:51:32,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:51:32,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:51:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070065361] [2023-12-20 22:51:32,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:51:32,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:51:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:32,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:51:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:51:32,129 INFO L87 Difference]: Start difference. First operand has 95 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 55 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-20 22:51:32,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:32,179 INFO L93 Difference]: Finished difference Result 187 states and 342 transitions. [2023-12-20 22:51:32,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:51:32,181 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 231 [2023-12-20 22:51:32,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:32,189 INFO L225 Difference]: With dead ends: 187 [2023-12-20 22:51:32,189 INFO L226 Difference]: Without dead ends: 93 [2023-12-20 22:51:32,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:51:32,199 INFO L413 NwaCegarLoop]: 145 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, 145 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 [2023-12-20 22:51:32,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:51:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-20 22:51:32,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-12-20 22:51:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 53 states have (on average 1.3584905660377358) internal successors, (72), 53 states have internal predecessors, (72), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 22:51:32,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 148 transitions. [2023-12-20 22:51:32,249 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 148 transitions. Word has length 231 [2023-12-20 22:51:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:32,249 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 148 transitions. [2023-12-20 22:51:32,250 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, (38), 2 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-20 22:51:32,250 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2023-12-20 22:51:32,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 22:51:32,259 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:32,259 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:32,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 22:51:32,464 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 [2023-12-20 22:51:32,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:32,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:32,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1748227201, now seen corresponding path program 1 times [2023-12-20 22:51:32,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:32,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694118386] [2023-12-20 22:51:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:32,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:32,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:32,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [775407163] [2023-12-20 22:51:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:32,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:32,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:32,545 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) [2023-12-20 22:51:32,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 22:51:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:32,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 22:51:32,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-20 22:51:32,779 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:51:32,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694118386] [2023-12-20 22:51:32,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:51:32,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775407163] [2023-12-20 22:51:32,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775407163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:51:32,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:51:32,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:51:32,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166730710] [2023-12-20 22:51:32,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:51:32,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 22:51:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 22:51:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:51:32,785 INFO L87 Difference]: Start difference. First operand 93 states and 148 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:32,863 INFO L93 Difference]: Finished difference Result 274 states and 436 transitions. [2023-12-20 22:51:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 22:51:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 231 [2023-12-20 22:51:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:32,870 INFO L225 Difference]: With dead ends: 274 [2023-12-20 22:51:32,870 INFO L226 Difference]: Without dead ends: 182 [2023-12-20 22:51:32,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:51:32,874 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 135 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:51:32,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 374 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:51:32,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-20 22:51:32,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 105. [2023-12-20 22:51:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 65 states have (on average 1.4) internal successors, (91), 65 states have internal predecessors, (91), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 22:51:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 167 transitions. [2023-12-20 22:51:32,898 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 167 transitions. Word has length 231 [2023-12-20 22:51:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:32,901 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 167 transitions. [2023-12-20 22:51:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2023-12-20 22:51:32,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 22:51:32,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:32,903 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:32,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 22:51:33,108 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 [2023-12-20 22:51:33,109 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:33,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1355200191, now seen corresponding path program 1 times [2023-12-20 22:51:33,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:33,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585334807] [2023-12-20 22:51:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:33,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:33,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:33,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640048057] [2023-12-20 22:51:33,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:33,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:33,176 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) [2023-12-20 22:51:33,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 22:51:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:33,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 22:51:33,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-20 22:51:33,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:51:33,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:33,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585334807] [2023-12-20 22:51:33,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:51:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640048057] [2023-12-20 22:51:33,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640048057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:51:33,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:51:33,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 22:51:33,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553979826] [2023-12-20 22:51:33,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:51:33,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 22:51:33,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:33,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 22:51:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 22:51:33,395 INFO L87 Difference]: Start difference. First operand 105 states and 167 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:33,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:33,600 INFO L93 Difference]: Finished difference Result 298 states and 466 transitions. [2023-12-20 22:51:33,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 22:51:33,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 231 [2023-12-20 22:51:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:33,603 INFO L225 Difference]: With dead ends: 298 [2023-12-20 22:51:33,603 INFO L226 Difference]: Without dead ends: 194 [2023-12-20 22:51:33,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 22:51:33,604 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 217 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:51:33,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 388 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:51:33,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-20 22:51:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 110. [2023-12-20 22:51:33,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 22:51:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 170 transitions. [2023-12-20 22:51:33,616 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 170 transitions. Word has length 231 [2023-12-20 22:51:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:33,616 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 170 transitions. [2023-12-20 22:51:33,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 170 transitions. [2023-12-20 22:51:33,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-20 22:51:33,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:33,618 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:33,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 22:51:33,823 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 [2023-12-20 22:51:33,823 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:33,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash -245917505, now seen corresponding path program 1 times [2023-12-20 22:51:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91478506] [2023-12-20 22:51:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:33,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:33,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:33,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1720141505] [2023-12-20 22:51:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:33,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:33,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:33,848 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) [2023-12-20 22:51:33,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 22:51:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:33,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-20 22:51:33,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 321 proven. 105 refuted. 0 times theorem prover too weak. 2386 trivial. 0 not checked. [2023-12-20 22:51:34,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 22:51:34,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 6 proven. 105 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-20 22:51:34,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:34,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91478506] [2023-12-20 22:51:34,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:51:34,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720141505] [2023-12-20 22:51:34,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720141505] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 22:51:34,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 22:51:34,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-20 22:51:34,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898210095] [2023-12-20 22:51:34,392 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 22:51:34,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 22:51:34,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:34,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 22:51:34,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-20 22:51:34,394 INFO L87 Difference]: Start difference. First operand 110 states and 170 transitions. Second operand has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2023-12-20 22:51:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:34,640 INFO L93 Difference]: Finished difference Result 227 states and 346 transitions. [2023-12-20 22:51:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:51:34,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 231 [2023-12-20 22:51:34,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:34,642 INFO L225 Difference]: With dead ends: 227 [2023-12-20 22:51:34,642 INFO L226 Difference]: Without dead ends: 118 [2023-12-20 22:51:34,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-12-20 22:51:34,643 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:51:34,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 355 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:51:34,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-20 22:51:34,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2023-12-20 22:51:34,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 72 states have (on average 1.3194444444444444) internal successors, (95), 72 states have internal predecessors, (95), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 22:51:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2023-12-20 22:51:34,652 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 231 [2023-12-20 22:51:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:34,653 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2023-12-20 22:51:34,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.8) internal successors, (78), 10 states have internal predecessors, (78), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2023-12-20 22:51:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2023-12-20 22:51:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-20 22:51:34,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:34,655 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:34,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 22:51:34,860 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 [2023-12-20 22:51:34,860 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:34,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:34,860 INFO L85 PathProgramCache]: Analyzing trace with hash -22777314, now seen corresponding path program 1 times [2023-12-20 22:51:34,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:34,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442036221] [2023-12-20 22:51:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:34,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:34,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165391904] [2023-12-20 22:51:34,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:34,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:34,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:34,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:51:34,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 22:51:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:35,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 22:51:35,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:35,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-20 22:51:35,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:51:35,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:35,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442036221] [2023-12-20 22:51:35,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:51:35,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165391904] [2023-12-20 22:51:35,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165391904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:51:35,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:51:35,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 22:51:35,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48822450] [2023-12-20 22:51:35,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:51:35,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 22:51:35,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:35,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 22:51:35,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 22:51:35,327 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:35,609 INFO L93 Difference]: Finished difference Result 415 states and 623 transitions. [2023-12-20 22:51:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 22:51:35,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 232 [2023-12-20 22:51:35,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:35,616 INFO L225 Difference]: With dead ends: 415 [2023-12-20 22:51:35,616 INFO L226 Difference]: Without dead ends: 302 [2023-12-20 22:51:35,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-20 22:51:35,617 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 163 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:51:35,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 493 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:51:35,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-12-20 22:51:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 221. [2023-12-20 22:51:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 138 states have (on average 1.2971014492753623) internal successors, (179), 138 states have internal predecessors, (179), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-20 22:51:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 331 transitions. [2023-12-20 22:51:35,697 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 331 transitions. Word has length 232 [2023-12-20 22:51:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:35,698 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 331 transitions. [2023-12-20 22:51:35,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 331 transitions. [2023-12-20 22:51:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-20 22:51:35,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:35,700 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:35,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 22:51:35,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:35,906 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:35,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:35,907 INFO L85 PathProgramCache]: Analyzing trace with hash -61419137, now seen corresponding path program 1 times [2023-12-20 22:51:35,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:35,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035160873] [2023-12-20 22:51:35,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:35,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:35,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:35,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131427107] [2023-12-20 22:51:35,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:35,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:35,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:35,925 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:51:35,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 22:51:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:51:36,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 22:51:36,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 22:51:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-20 22:51:36,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 22:51:36,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:51:36,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035160873] [2023-12-20 22:51:36,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 22:51:36,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131427107] [2023-12-20 22:51:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131427107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:51:36,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:51:36,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 22:51:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996658176] [2023-12-20 22:51:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:51:36,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 22:51:36,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:51:36,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 22:51:36,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:51:36,067 INFO L87 Difference]: Start difference. First operand 221 states and 331 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:51:36,114 INFO L93 Difference]: Finished difference Result 607 states and 908 transitions. [2023-12-20 22:51:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 22:51:36,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 233 [2023-12-20 22:51:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:51:36,116 INFO L225 Difference]: With dead ends: 607 [2023-12-20 22:51:36,116 INFO L226 Difference]: Without dead ends: 387 [2023-12-20 22:51:36,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 22:51:36,117 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 129 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:51:36,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 288 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:51:36,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-20 22:51:36,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 219. [2023-12-20 22:51:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 136 states have (on average 1.2426470588235294) internal successors, (169), 136 states have internal predecessors, (169), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-20 22:51:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 321 transitions. [2023-12-20 22:51:36,139 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 321 transitions. Word has length 233 [2023-12-20 22:51:36,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:51:36,139 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 321 transitions. [2023-12-20 22:51:36,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-20 22:51:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 321 transitions. [2023-12-20 22:51:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-20 22:51:36,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:51:36,141 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:51:36,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 22:51:36,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:36,348 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:51:36,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:51:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 589773311, now seen corresponding path program 1 times [2023-12-20 22:51:36,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:51:36,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822157250] [2023-12-20 22:51:36,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:36,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:51:36,366 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 22:51:36,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327102950] [2023-12-20 22:51:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:51:36,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 22:51:36,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:51:36,367 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 22:51:36,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Received shutdown request... [2023-12-20 23:06:20,161 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 23:06:20,176 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 [2023-12-20 23:06:21,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-20 23:06:21,361 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2023-12-20 23:06:21,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-20 23:06:21,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 23:06:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 23:06:21,373 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 234 with TraceHistMax 38,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-20 23:06:21,376 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-20 23:06:21,378 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 23:06:21,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 11:06:21 BoogieIcfgContainer [2023-12-20 23:06:21,379 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 23:06:21,380 INFO L158 Benchmark]: Toolchain (without parser) took 891078.08ms. Allocated memory was 223.3MB in the beginning and 271.6MB in the end (delta: 48.2MB). Free memory was 173.4MB in the beginning and 81.9MB in the end (delta: 91.5MB). Peak memory consumption was 141.2MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2023-12-20 23:06:21,385 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 223.3MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 23:06:21,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.13ms. Allocated memory is still 223.3MB. Free memory was 173.4MB in the beginning and 155.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.85ms. Allocated memory is still 223.3MB. Free memory was 155.6MB in the beginning and 148.9MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,386 INFO L158 Benchmark]: Boogie Preprocessor took 84.81ms. Allocated memory is still 223.3MB. Free memory was 148.9MB in the beginning and 134.6MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,386 INFO L158 Benchmark]: RCFGBuilder took 732.33ms. Allocated memory was 223.3MB in the beginning and 271.6MB in the end (delta: 48.2MB). Free memory was 134.6MB in the beginning and 200.6MB in the end (delta: -66.0MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,386 INFO L158 Benchmark]: TraceAbstraction took 889845.55ms. Allocated memory is still 271.6MB. Free memory was 200.1MB in the beginning and 81.9MB in the end (delta: 118.1MB). Peak memory consumption was 118.7MB. Max. memory is 8.0GB. [2023-12-20 23:06:21,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 223.3MB. Free memory is still 171.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 348.13ms. Allocated memory is still 223.3MB. Free memory was 173.4MB in the beginning and 155.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.85ms. Allocated memory is still 223.3MB. Free memory was 155.6MB in the beginning and 148.9MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.81ms. Allocated memory is still 223.3MB. Free memory was 148.9MB in the beginning and 134.6MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * RCFGBuilder took 732.33ms. Allocated memory was 223.3MB in the beginning and 271.6MB in the end (delta: 48.2MB). Free memory was 134.6MB in the beginning and 200.6MB in the end (delta: -66.0MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * TraceAbstraction took 889845.55ms. Allocated memory is still 271.6MB. Free memory was 200.1MB in the beginning and 81.9MB in the end (delta: 118.1MB). Peak memory consumption was 118.7MB. 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 analyzing trace of length 234 with TraceHistMax 38,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 889.8s, OverallIterations: 7, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 768 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 766 mSDsluCounter, 2043 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 912 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 732 IncrementalHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 1131 mSDtfsCounter, 732 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1621 GetRequests, 1599 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=5, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 414 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1620 NumberOfCodeBlocks, 1620 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1613 ConstructedInterpolants, 0 QuantifiedInterpolants, 3288 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3235 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 19474/19684 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