/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/array-fpi/res2of.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 20:21:18,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 20:21:18,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 20:21:18,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 20:21:18,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 20:21:18,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 20:21:18,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 20:21:18,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 20:21:18,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 20:21:18,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 20:21:18,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 20:21:18,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 20:21:18,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 20:21:18,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 20:21:18,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 20:21:18,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 20:21:18,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 20:21:18,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 20:21:18,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 20:21:18,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 20:21:18,390 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 20:21:18,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 20:21:18,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 20:21:18,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 20:21:18,397 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 20:21:18,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 20:21:18,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 20:21:18,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 20:21:18,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 20:21:18,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 20:21:18,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 20:21:18,399 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 20:21:18,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 20:21:18,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 20:21:18,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 20:21:18,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 20:21:18,578 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 20:21:18,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/res2of.c [2022-01-31 20:21:18,635 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32652a13/4bc73c4cc4db4fbf910a44018ebbd193/FLAGb7653886b [2022-01-31 20:21:18,987 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 20:21:18,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res2of.c [2022-01-31 20:21:19,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32652a13/4bc73c4cc4db4fbf910a44018ebbd193/FLAGb7653886b [2022-01-31 20:21:19,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a32652a13/4bc73c4cc4db4fbf910a44018ebbd193 [2022-01-31 20:21:19,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 20:21:19,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 20:21:19,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 20:21:19,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 20:21:19,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 20:21:19,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19, skipping insertion in model container [2022-01-31 20:21:19,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 20:21:19,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 20:21:19,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res2of.c[589,602] [2022-01-31 20:21:19,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 20:21:19,186 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 20:21:19,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/res2of.c[589,602] [2022-01-31 20:21:19,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 20:21:19,207 INFO L208 MainTranslator]: Completed translation [2022-01-31 20:21:19,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19 WrapperNode [2022-01-31 20:21:19,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 20:21:19,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 20:21:19,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 20:21:19,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 20:21:19,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 20:21:19,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 20:21:19,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 20:21:19,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 20:21:19,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (1/1) ... [2022-01-31 20:21:19,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 20:21:19,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 20:21:19,249 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) [2022-01-31 20:21:19,251 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 [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-01-31 20:21:19,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 20:21:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 20:21:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 20:21:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 20:21:19,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 20:21:19,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 20:21:19,320 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 20:21:19,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 20:21:19,472 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 20:21:19,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 20:21:19,476 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-31 20:21:19,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:21:19 BoogieIcfgContainer [2022-01-31 20:21:19,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 20:21:19,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 20:21:19,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 20:21:19,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 20:21:19,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 08:21:19" (1/3) ... [2022-01-31 20:21:19,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335be606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:21:19, skipping insertion in model container [2022-01-31 20:21:19,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 08:21:19" (2/3) ... [2022-01-31 20:21:19,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335be606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 08:21:19, skipping insertion in model container [2022-01-31 20:21:19,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 08:21:19" (3/3) ... [2022-01-31 20:21:19,492 INFO L111 eAbstractionObserver]: Analyzing ICFG res2of.c [2022-01-31 20:21:19,496 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 20:21:19,496 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 20:21:19,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 20:21:19,526 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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=JORDAN [2022-01-31 20:21:19,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 20:21:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 20:21:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 20:21:19,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:21:19,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:21:19,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:21:19,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:21:19,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1259377407, now seen corresponding path program 1 times [2022-01-31 20:21:19,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:21:19,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343296679] [2022-01-31 20:21:19,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:21:19,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:21:19,588 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 20:21:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 20:21:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:19,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 20:21:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 20:21:19,679 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 20:21:19,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343296679] [2022-01-31 20:21:19,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1343296679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 20:21:19,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 20:21:19,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-31 20:21:19,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006270886] [2022-01-31 20:21:19,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 20:21:19,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-31 20:21:19,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 20:21:19,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-31 20:21:19,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 20:21:19,708 INFO L87 Difference]: Start difference. First operand has 43 states, 33 states have (on average 1.4848484848484849) internal successors, (49), 34 states have internal predecessors, (49), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 20:21:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 20:21:19,802 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2022-01-31 20:21:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-31 20:21:19,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-01-31 20:21:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 20:21:19,809 INFO L225 Difference]: With dead ends: 76 [2022-01-31 20:21:19,809 INFO L226 Difference]: Without dead ends: 36 [2022-01-31 20:21:19,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-31 20:21:19,814 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 20:21:19,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 20:21:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-01-31 20:21:19,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-01-31 20:21:19,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:21:19,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2022-01-31 20:21:19,850 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 29 [2022-01-31 20:21:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 20:21:19,850 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-01-31 20:21:19,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-31 20:21:19,851 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2022-01-31 20:21:19,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-01-31 20:21:19,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:21:19,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:21:19,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 20:21:19,853 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:21:19,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:21:19,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1596973367, now seen corresponding path program 1 times [2022-01-31 20:21:19,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:21:19,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18933017] [2022-01-31 20:21:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:21:19,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:21:19,865 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 20:21:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 20:21:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 20:21:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 20:21:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 20:21:20,017 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 20:21:20,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18933017] [2022-01-31 20:21:20,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [18933017] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 20:21:20,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 20:21:20,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-31 20:21:20,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428415326] [2022-01-31 20:21:20,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 20:21:20,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-31 20:21:20,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 20:21:20,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-31 20:21:20,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-31 20:21:20,020 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:21:20,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 20:21:20,146 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2022-01-31 20:21:20,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-31 20:21:20,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-01-31 20:21:20,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 20:21:20,149 INFO L225 Difference]: With dead ends: 69 [2022-01-31 20:21:20,149 INFO L226 Difference]: Without dead ends: 48 [2022-01-31 20:21:20,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-31 20:21:20,154 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 40 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 20:21:20,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 32 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 20:21:20,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-01-31 20:21:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-01-31 20:21:20,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:21:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-01-31 20:21:20,161 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 29 [2022-01-31 20:21:20,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 20:21:20,161 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-01-31 20:21:20,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-01-31 20:21:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-01-31 20:21:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-31 20:21:20,162 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 20:21:20,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 20:21:20,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 20:21:20,163 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 20:21:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 20:21:20,163 INFO L85 PathProgramCache]: Analyzing trace with hash 378806037, now seen corresponding path program 1 times [2022-01-31 20:21:20,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 20:21:20,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533850162] [2022-01-31 20:21:20,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 20:21:20,173 INFO L87 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 2 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-01-31 20:21:20,174 WARN L89 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-01-31 20:21:20,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 20:21:20,175 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 20:21:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 20:21:20,237 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 20:21:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 20:21:20,313 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 20:21:20,314 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 20:21:20,316 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 20:21:20,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-31 20:21:20,319 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-31 20:21:20,323 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 20:21:20,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 08:21:20 BoogieIcfgContainer [2022-01-31 20:21:20,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 20:21:20,334 INFO L158 Benchmark]: Toolchain (without parser) took 1316.28ms. Allocated memory is still 186.6MB. Free memory was 137.5MB in the beginning and 93.7MB in the end (delta: 43.8MB). Peak memory consumption was 44.2MB. Max. memory is 8.0GB. [2022-01-31 20:21:20,334 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 20:21:20,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.27ms. Allocated memory is still 186.6MB. Free memory was 137.3MB in the beginning and 162.9MB in the end (delta: -25.6MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2022-01-31 20:21:20,335 INFO L158 Benchmark]: Boogie Preprocessor took 21.13ms. Allocated memory is still 186.6MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 20:21:20,335 INFO L158 Benchmark]: RCFGBuilder took 247.45ms. Allocated memory is still 186.6MB. Free memory was 160.8MB in the beginning and 147.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-31 20:21:20,335 INFO L158 Benchmark]: TraceAbstraction took 855.52ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 93.7MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. Max. memory is 8.0GB. [2022-01-31 20:21:20,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 188.27ms. Allocated memory is still 186.6MB. Free memory was 137.3MB in the beginning and 162.9MB in the end (delta: -25.6MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.13ms. Allocated memory is still 186.6MB. Free memory was 162.9MB in the beginning and 160.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 247.45ms. Allocated memory is still 186.6MB. Free memory was 160.8MB in the beginning and 147.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 855.52ms. Allocated memory is still 186.6MB. Free memory was 147.2MB in the beginning and 93.7MB in the end (delta: 53.5MB). Peak memory consumption was 53.5MB. 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 [L34] COND TRUE i