/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/loops/matrix-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:42:25,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:42:25,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:42:25,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 02:42:25,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 02:42:25,711 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:42:25,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:42:25,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:42:25,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:42:25,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:42:25,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:42:25,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:42:25,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:42:25,714 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:42:25,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:42:25,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:42:25,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:42:25,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 02:42:25,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:42:25,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:42:25,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:42:25,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:42:25,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:42:25,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:42:25,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:42:25,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:42:25,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:42:25,718 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 02:42:25,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 02:42:25,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:42:25,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:42:25,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:42:25,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 02:42:25,720 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:42:25,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:42:25,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:42:25,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:42:25,981 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:42:25,983 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:42:25,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-2.c [2022-01-10 02:42:26,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74842659/719edaa49a034df8a2da17312f39c05a/FLAG08e0b3fbe [2022-01-10 02:42:26,418 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:42:26,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c [2022-01-10 02:42:26,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74842659/719edaa49a034df8a2da17312f39c05a/FLAG08e0b3fbe [2022-01-10 02:42:26,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b74842659/719edaa49a034df8a2da17312f39c05a [2022-01-10 02:42:26,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:42:26,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:42:26,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:42:26,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:42:26,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:42:26,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3d47f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26, skipping insertion in model container [2022-01-10 02:42:26,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:42:26,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:42:26,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c[320,333] [2022-01-10 02:42:26,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:42:26,684 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:42:26,695 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-2.c[320,333] [2022-01-10 02:42:26,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:42:26,723 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:42:26,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26 WrapperNode [2022-01-10 02:42:26,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:42:26,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:42:26,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:42:26,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:42:26,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,764 INFO L137 Inliner]: procedures = 17, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2022-01-10 02:42:26,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:42:26,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:42:26,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:42:26,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:42:26,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:42:26,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:42:26,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:42:26,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:42:26,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (1/1) ... [2022-01-10 02:42:26,803 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:42:26,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:42:26,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 02:42:26,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 02:42:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:42:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 02:42:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 02:42:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 02:42:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:42:26,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:42:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 02:42:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 02:42:26,909 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:42:26,910 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:42:27,321 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:42:27,326 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:42:27,326 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-10 02:42:27,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:27 BoogieIcfgContainer [2022-01-10 02:42:27,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:42:27,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:42:27,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:42:27,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:42:27,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:42:26" (1/3) ... [2022-01-10 02:42:27,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@990db8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:27, skipping insertion in model container [2022-01-10 02:42:27,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:42:26" (2/3) ... [2022-01-10 02:42:27,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@990db8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:42:27, skipping insertion in model container [2022-01-10 02:42:27,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:42:27" (3/3) ... [2022-01-10 02:42:27,335 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-2.c [2022-01-10 02:42:27,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:42:27,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 02:42:27,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:42:27,393 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:42:27,393 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 02:42:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:27,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-01-10 02:42:27,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:42:27,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:42:27,410 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:42:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:42:27,414 INFO L85 PathProgramCache]: Analyzing trace with hash 228332486, now seen corresponding path program 1 times [2022-01-10 02:42:27,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 02:42:27,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105488898] [2022-01-10 02:42:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:42:27,424 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 02:42:27,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 02:42:27,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 02:42:27,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 02:42:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:42:27,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 02:42:27,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 02:42:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:42:27,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 02:42:27,597 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 02:42:27,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105488898] [2022-01-10 02:42:27,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105488898] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:42:27,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:42:27,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 02:42:27,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965647092] [2022-01-10 02:42:27,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:42:27,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 02:42:27,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 02:42:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 02:42:27,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 02:42:27,625 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:42:27,887 INFO L93 Difference]: Finished difference Result 57 states and 86 transitions. [2022-01-10 02:42:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 02:42:27,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-01-10 02:42:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:42:27,902 INFO L225 Difference]: With dead ends: 57 [2022-01-10 02:42:27,902 INFO L226 Difference]: Without dead ends: 29 [2022-01-10 02:42:27,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:42:27,907 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:42:27,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 42 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 02:42:27,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-10 02:42:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2022-01-10 02:42:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-01-10 02:42:27,929 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 8 [2022-01-10 02:42:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:42:27,930 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-01-10 02:42:27,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-01-10 02:42:27,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-01-10 02:42:27,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:42:27,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:42:27,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 02:42:28,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 02:42:28,141 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:42:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:42:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1185124407, now seen corresponding path program 1 times [2022-01-10 02:42:28,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 02:42:28,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991807721] [2022-01-10 02:42:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:42:28,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 02:42:28,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 02:42:28,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 02:42:28,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 02:42:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:42:28,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 02:42:28,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 02:42:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:42:28,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 02:42:28,275 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 02:42:28,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991807721] [2022-01-10 02:42:28,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991807721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:42:28,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:42:28,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 02:42:28,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518237721] [2022-01-10 02:42:28,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:42:28,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 02:42:28,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 02:42:28,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 02:42:28,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 02:42:28,279 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:42:28,655 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-01-10 02:42:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 02:42:28,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-01-10 02:42:28,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:42:28,657 INFO L225 Difference]: With dead ends: 47 [2022-01-10 02:42:28,657 INFO L226 Difference]: Without dead ends: 26 [2022-01-10 02:42:28,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:42:28,658 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 02:42:28,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 02:42:28,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-01-10 02:42:28,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2022-01-10 02:42:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:28,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2022-01-10 02:42:28,663 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2022-01-10 02:42:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:42:28,663 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2022-01-10 02:42:28,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 02:42:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-01-10 02:42:28,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 02:42:28,664 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:42:28,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 02:42:28,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-01-10 02:42:28,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 02:42:28,874 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:42:28,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:42:28,875 INFO L85 PathProgramCache]: Analyzing trace with hash 206458815, now seen corresponding path program 1 times [2022-01-10 02:42:28,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 02:42:28,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388712162] [2022-01-10 02:42:28,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:42:28,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 02:42:28,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 02:42:28,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 02:42:28,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 02:42:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 02:42:29,013 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 02:42:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 02:42:29,124 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 02:42:29,124 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 02:42:29,125 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 02:42:29,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 02:42:29,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 02:42:29,330 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-10 02:42:29,332 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 02:42:29,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:42:29 BoogieIcfgContainer [2022-01-10 02:42:29,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 02:42:29,351 INFO L158 Benchmark]: Toolchain (without parser) took 2904.85ms. Allocated memory is still 208.7MB. Free memory was 160.4MB in the beginning and 133.8MB in the end (delta: 26.6MB). Peak memory consumption was 26.0MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,352 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 208.7MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 02:42:29,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.06ms. Allocated memory is still 208.7MB. Free memory was 160.2MB in the beginning and 186.6MB in the end (delta: -26.3MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.82ms. Allocated memory is still 208.7MB. Free memory was 186.6MB in the beginning and 185.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,353 INFO L158 Benchmark]: Boogie Preprocessor took 28.75ms. Allocated memory is still 208.7MB. Free memory was 185.1MB in the beginning and 183.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,354 INFO L158 Benchmark]: RCFGBuilder took 532.79ms. Allocated memory is still 208.7MB. Free memory was 183.7MB in the beginning and 172.6MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,354 INFO L158 Benchmark]: TraceAbstraction took 2022.35ms. Allocated memory is still 208.7MB. Free memory was 172.3MB in the beginning and 133.8MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-01-10 02:42:29,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 208.7MB. Free memory is still 176.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 275.06ms. Allocated memory is still 208.7MB. Free memory was 160.2MB in the beginning and 186.6MB in the end (delta: -26.3MB). Peak memory consumption was 11.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.82ms. Allocated memory is still 208.7MB. Free memory was 186.6MB in the beginning and 185.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.75ms. Allocated memory is still 208.7MB. Free memory was 185.1MB in the beginning and 183.9MB in the end (delta: 1.2MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 532.79ms. Allocated memory is still 208.7MB. Free memory was 183.7MB in the beginning and 172.6MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2022.35ms. Allocated memory is still 208.7MB. Free memory was 172.3MB in the beginning and 133.8MB in the end (delta: 38.5MB). Peak memory consumption was 38.8MB. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] unsigned int j,k; [L19] int matriz[N_COL][N_LIN], maior; [L21] maior = __VERIFIER_nondet_int() [L22] j=0 VAL [j=0, matriz={5:0}, N_COL=1, N_LIN=1] [L22] COND TRUE jmaior [L28] EXPR matriz[j][k] [L28] maior = matriz[j][k] [L23] k++ VAL [j=0, k=1, maior=0, matriz={5:0}, N_COL=1, N_LIN=1] [L23] COND FALSE !(k